alt="2015年科研计划项目“高速高精度数据转换器研发与应用”通过验收"
alt="为表彰在集团科技创新中作出突出贡献的单位和个人，授予深圳嘉泰姆业发展有限公司“国家电网自主可控智能信息采集芯片”项目“中国电子2018年度（民品）科技进步奖二等奖”。"
alt="NI将Wi-Fi 6 PA/FEM组件的测试频率扩大至6 GHz以上"
alt="EEPROM存储芯片荣获“我用中国芯” 十佳芯片评选活动“最受欢迎奖”"
alt="第二届集成电路产业技术创新奖"New Products
Cxdr7544 is a single lithium battery power indicator chip, which is implemented by CMOS technology, small size and easy to install portable products.
Cxdr7544 is a single lithium battery power indicator chip, which is implemented by CMOS technology, small size and easy to install portable products. Cxdr7544 has built-in comparator and feedback loop to realize the detection of four voltage points. Through the internal adjustment technology, the v...
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The CXUS7744 incorporates dual 95mΩ P-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input.
The CXUS7744 incorporates dual 95mΩ P-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. When either output load exceeds the current-limit threshold or a short is present, the device limits the outputs current to a safe level by switching into a constant-current limit mode with fold back, pulling the over-current (OCB(s)) logic output low. When continuous heavy overloads or short-circuits increase the power dissipation in the switches, causing the junction temperature to raise, a thermal protection circuit shutdown the switches to prevent damage. Internal Under Voltage Lock-Out (UVLO) circuitry ensures that the switches remain off until valid input voltage is present. Each power switch is designed to set current limit at 1A typically. OCB(s) are open-drain outputs which are asserted when over-current occurs. A 8ms fault-blanking feature enables the circuit to ignore momentary faults, such as those caused when hot-swapping a capacitive load, preventing false alarms to the host system.
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CXUS7747 CXUS7748 is an USB Type-C controller (USB Type-C™ Specification 1.1) with/without internal PMOS FET. It specially designed for power adapter and charger applications
CXUS7747 CXUS7748 is an USB Type-C controller (USB Type-C™ Specification 1.1) with/without internal PMOS FET. It specially designed for power adapter and charger applications (*up to 3A @5V). It can provide the information about the power source current rating to a load device. It also prevents the VBUS from being asserted unless a valid connection has been detected
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USB Power-Distribution Switches CXUS7741 CXUS7742 The 62m N-channel MOSFET power switch satisfies the voltage drop requirements of USB specification. The protection features include current-limit pro
The CXUS7741 CXUS7742 series of power switches are designed for USB applications. The 62m N-channel MOSFET power switch satisfies the voltage drop requirements of USB specification. The protection features include current-limit protection, short-circuit protection, and over-temperature protection.The device limits the output current at current limit threshold level. When VOUT drops below 1.5V, the devices limit the current to a lower and safe level. The over-temperature protection limits the junction temperature below 140℃in case of short circuit or over load conditions.Other features include a deglitched OCB output to indicate the fault condition and an enable input to enable or disable the device.
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33mW 3A High Side Load Switches CXUS7736 series are 33mW high-side load switches designed to be operated from 1.5V to 5.5V. The load switch that supports 1.5V logic level control and shutdown features
The CXUS7736 series are 33mW high-side load switches designed to be operated from 1.5V to 5.5V. The load switch that supports 1.5V logic level control and shutdown features can deliver load current up to 3A. The CXUS7736 incorporates a soft-start control circuitry to limit inrush current during powering-up. When disabled, an internal discharge circuit automatically discharges a capacitive load. The enable input pin is actively pulled down to keep the device in off state until the enable pin is pulled above 1.2V. The level shift circuitry allows low voltage logic signals to switch higher supply voltage. The EN input voltage can be as high as 5.5V and is not limited by the input voltage. With the virtues of low quiescent current and low shut down current, the CXUS7736 series are ideal for battery powered systems to maximum battery life, as well as non-battery powered applications. They are available in tiny 1.2mmx1.2mm WLCSP-4 packages.
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Ultra-Low On-Resistance, 6A Dual Load Switch with Soft Start CXUS7734/QB is an ultra-low on-resistance, dual powerdistribution switch with external soft start control. It integrates two N-channel MOS
The CXUS7734/QB is an ultra-low on-resistance, dual powerdistribution switch with external soft start control. It integrates two N-channel MOSFETs that can deliver 6A continuous load current each. The device integrates over-temperature protection. The over temperature protection function shuts down the Nchannel MOSFET power switch when the junction temperature rises beyond 160oC and will automatically turns on the power switch when the temperature drops by 40oC. The device is available in lead free TDFN2x3-14A packages.
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Ultra-Low On-Resistance, 6A Load Switch with Soft Start CXUS7733/B is an ultra-low on-resistance, power-distribution switch with external soft start control. It integrates a N-channel MOSFET that ca
The CXUS7733/B is an ultra-low on-resistance, power-distribution switch with external soft start control. It integrates a N-channel MOSFET that can deliver 6A continuous load current each. The device integrates over-temperature protection. The over temperature protection function shuts down the Nchannel MOSFET power switch when the junction temperature rises beyond 160oC and will automatically turns on the power switch when the temperature drops by 40oC
Product Categories
Power Management
The power mangagement IC of CHENGXIN includes:DC/DC,LDO, Voltage Detector,Battery Charger,Load Switch,Relay Driver,LED Driver and so on. CHENGXIN can support whole solution of power management for customers, such as: commercial power supply,adapter power supply,battery power supply.Applications include: TV, STB,meters, PON, mobilephones,telephones,electronic toys,security and protection monitoring,portable power source,Ukey and so on. CHENGXIN can support whole solution for customer to make customer's product more efficient, more economical, more convenient and closer to perfection.Pls contact us without any hesitation
Power Device
Basing on the high efficiency, High power density, as well as enhancing avalanche energy in harsh environment, CHENGXIN provides various products for circuit designers to continuously improving system efficiency and making rapid, stable and efficient power managemen.
EEPROM Memory
CHENGXIN offers the serial EEPROM from 2K to 2M bits,the package includes SOP, TSSOP, DIP, UDFN, WLCSP, TSOT, be widely applied in consumer, industrial control, communication, medical instruments and other fields.
MCU
Keep up with the requirements in the field of electric energy measurement, continuously launch relevant measurement products, and support all types of electric energy measurement systems
Led Driver
The LED drive ICs of CHENGXIN company includes non isolated constant current drive IC, non isolated high PF drive IC, isolation high PF low THD constant current drive IC, ripple current removed IC and other series of products to meet the customers' different application needs at home and abroad.
Audio Amplifier IC
Provide various interface circuits, widely used in industrial control, instrumentation, security, consumer electronics and other fields。
MCU Memory ADC Clock
Aiming at different application, MCU products of CHENGXIN is divided into general purpose MCU and special purpose MCU. General purpose MCU is used in consumer electronics products, household appliances and intelligent controller,which has IO type series and AD type series, low-cost OTP ROM and cost-effective MTP ROM, rich function modules, varies package type. Special purpose MCU is used in motor control, which has high integration and minimal external components, built-in special function modules for motor control. Aiming at motor control, promotion for 8051 core makes it possible for high computing speed and excellent data processing ability.
Latest Announcement
Cxle8610 is a step-down constant current LED driver, which can work in the range of dc8v to 36V input voltage, with low ripple and built-in power MOS
Cxle8610 is a step-down constant current LED driver, which can work in the range of dc8v to 36V input voltage, with low ripple and built-in power MOS. Cxle8610 has built-in fixed frequency oscillator and frequency compensation circuit, which simplifies the circuit design. PWM control loop can adjus...
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Cxch7667b is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current
Cxch7667b is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current (25ua typ.), they can have an output current of 250 Ma when the difference between the input and output voltage is very small, and still can maintain a good adjustment rate. Because the voltage difference between input and output is very small and the static bias current is very small, these devices are especially suitable for battery powered products, such as computers, consumer products and industrial equipment, which want to extend the useful battery life
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Cxch7668 is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current
Cxch7668 is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current (25ua typ.), they can have an output current of 250 Ma when the difference between the input and output voltage is very small, and still can maintain a good adjustment rate. Because the voltage difference between input and output is very small and the static bias current is very small, these devices are especially suitable for battery powered products, such as computers, consumer products and industrial equipment, which want to extend the useful battery life
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Cxch7669k is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current
Cxch7669k is a CMOS voltage regulator with high ripple rejection, low power consumption, low voltage difference, over-current and short circuit protection. They have a very low static bias current (25ua typ.), they can have an output current of 250 Ma when the difference between the input and output voltage is very small, and still can maintain a good adjustment rate. Because the voltage difference between input and output is very small and the static bias current is very small, these devices are especially suitable for battery powered products, such as computers, consumer products and industrial equipment, which want to extend the useful battery life.
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150mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator The CXCH7671 is designed for portable RF and wireless applications with demanding performance and space requirements
The CXCH7671 is designed for portable RF and wireless applications with demanding performance and space requirements. The CXCH7671 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The CXCH7671 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The CXCH7671 consumes less than 0.01μA in shutdown mode and has fast turn-on time less than 50μs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio
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Cxch7672 is a synchronous rectifier buck IC. The device integrates two 130m Ω MOSFETs, which can supply 2A continuous load current in the range of 4.75V to 12V
Cxch7672 is a synchronous rectifier buck IC. The device integrates two 130m Ω MOSFETs, which can supply 2A continuous load current in the range of 4.75V to 12V. Current mode control provides fast transient response and cyclic current limits. The programmable soft start prevents the surge current when conducting. In off mode, the supply current is reduced to 1 μ a. Cxch7672 is packaged in sop-8 with few external components
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Cxle8609 is a step-down constant current LED driver, which can work in the range of dc8v to 40V input voltage, with low ripple and built-in power MOS
Cxle8609 is a step-down constant current LED driver, which can work in the range of dc8v to 40V input voltage, with low ripple and built-in power MOS. Cxle8609 has built-in fixed frequency oscillator and frequency compensation circuit, which simplifies the circuit design. PWM control loop can adjust the duty cycle from 0% to 100%. The built-in output over-current protection function reduces the switching frequency from 220khz to 60KHZ when the output is short circuited. Internal compensation module can reduce the number of peripheral components
Product Promotion
Cxch7662 cxch7662ms is a step-down voltage regulator working in current CCM mode. Cxch7662 cxch7662ms is equipped with built-in switch tube and synchronous rectifier tube, without external Schottky diode
Cxch7662 cxch7662ms is a step-down voltage regulator working in current CCM mode. Cxch7662 cxch7662ms is equipped with built-in switch tube and synchronous rectifier tube, without external Schottky diode. The input voltage ranges from 2 to 6V and is ideal for devices powered by a single battery or ...
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Cxch7611 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit is integrated in the chip Compared
Cxch7611 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit is integrated in the chip, Compared with cxch7612, a duty cycle controlled oscillator, driver and high current output switch can use the least external components to form a switching buck converter
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Cxch7619 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator
Cxch7619 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator, driver and high current output switch are integrated in the chip. Compared with the cxch7612 product, it can use the least external components to form a switching buck converter
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The cxch7615 is a dual channel CC / CV mode switch regulator. The cxch7615 is designed with a power supply voltage range of 8V to 36V, providing an output current of 3.1a.
The cxch7615 is a dual channel CC / CV mode switch regulator. The cxch7615 is designed with a power supply voltage range of 8V to 36V, providing an output current of 3.1a. The cxch7615 has a dual channel CC / CV mode control function, and the CV mode (constant voltage) function provides a stable voltage output; the CC mode (constant current) function provides a dual channel current limitation function, which is applicable to the application program of DC / DC switching power supply
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Cxch7616 is a special integrated circuit for DC-DC buck converter control part. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator, driver
Cxch7616 is a special integrated circuit for DC-DC buck converter control part. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator, driver and high current output switch are integrated in the chip. Compared with the cxch7612 product, it can use the least external components to form a switching buck converter
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Cxch7618 is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit is integrated in the chip,
Cxch7618 is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit is integrated in the chip, A duty cycle controlled oscillator, driver and high current output switch, compared with cxch7612 products, can use the least external components Switching buck converter
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Cxch7619 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator
Cxch7619 series is an integrated circuit specially used for the control part of DC-DC buck converter. A temperature compensated bandgap reference circuit, a duty cycle controlled oscillator, driver and high current output switch are integrated in the chip. Compared with the cxch7612 product, it can use the least external components to form a switching buck converter
Promoted Products
The CXCH7610 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 3.2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minim
The CXCH7610 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 3.2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency co...
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Cxsd6217 is a high efficiency synchronous DC/DC voltage regulator with constant frequency, current mode architecture and dual output. The chip has adjustable output Voltage type
Cxsd6217 is a high efficiency synchronous DC / DC voltage regulator with constant frequency, current mode architecture and dual output. The chip has adjustable output Voltage type and fixed output voltage type (1.2V, 1.8V, 3.3V) versions. Built in PWM / PFM automatic switching function, with low ripple and high in the full load range Efficiency characteristics. The internal switching frequency is up to 1.2MHz, and small surface mount components can be used. 100% duty cycle for low voltage 2V operation and extended front battery life.
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Cxsd6218 is a composite power management chip which can provide two low-noise high-speed LDOS and one DC-DC buck with 95% efficiency. Due to the CMOS technology the working
Cxsd6218 is a composite power management chip, which can provide two low-noise high-speed LDOS and one DC-DC buck with 95% efficiency. Due to the CMOS technology, the working current consumption of the chip is very small, and the low on state resistance is used inside, so that the output capacity of LDO can reach 300mA, and the load capacity of DC-DC can reach 800mA. There are load short circuit protection, temperature protection, over-current protection and other complete protection systems inside, which ensure the safety performance of the chip. The chip adopts dfn3 ?3-10l and other small packages, which is convenient for high-density installation
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The CXCH7601 is a 150KHz fixed frequency PWM buck DC/DC converter capable of driving a 2A load with high efficiency low ripple and excellent line and load regulation Requiring a minimum
The CXCH7601 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
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The CXCH7602 is a 150KHz fixed frequency PWM buck DC/DC converter capable of driving a 3A load with high efficiency low ripple and excellent line and load regulation.Requiring a minimum
The CXCH7602 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation.Requiring a minimum number of external components, the regulator is simple to use and includeinternal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An over current protection function is built inside.An internal compensation block is built in to minimize external component count.
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Cxch7614 is a fixed frequency DC-DC converter with PWM regulation (step-down). Cxch7614 can drive 1.7A current with high efficiency, small ripple at the load end, good linearity and load regulation rate
Cxch7614 is a fixed frequency DC-DC converter with PWM regulation (step-down). Cxch7614 can drive 1.7A current with high efficiency, small ripple at the load end, good linearity and load regulation rate. Cxch7614 has built-in frequency compensation, few peripheral components and simple application. The duty cycle of cxch7614 can be linearly adjusted from 0% to 100%. The internal comparator module integrates high-level shutdown, overcurrent protection and other functions. In addition, the internal comparator module saves the external components to the greatest extent and reduces the system cost
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Cxch7605 is a high efficiency buck DC-DC converter, which can work in the range of dc8v to 36V input voltage, with low ripple and built-in power MOS. Cxch7605 has built-in fixed frequency oscillator
Cxch7605 is a high efficiency buck DC-DC converter, which can work in the range of dc8v to 36V input voltage, with low ripple and built-in power MOS. Cxch7605 has built-in fixed frequency oscillator and frequency compensation circuit, which simplifies the circuit design. PWM control loop can adjust the duty cycle from 0% to 100%. Built in output over-current protection function. Internal compensation module can reduce the number of peripheral components.
News information
CXSD62578B The internal synchronous power switches provide high efficiency without the use
CXSD62578A CXSD62578B CXSD62578C delivers 8A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use
CXSD62578C output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use
CXSD62578A CXSD62578B CXSD62578C delivers 8A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use
CXSD62579A 6A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external
CXSD62579A CXSD62579B CXSD62579C delivers 6A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Sch
CXSD62579B The internal synchronous power switches provide high efficiency without the use of an external 6A of continuous output current with two integrated N-Channel MOSFETs
CXSD62579B CXSD62579B CXSD62579C delivers 6A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Sch
CXSD62579C guarantees robustness with output short protection, thermal protection, current run-away protection, and input under voltage lockout.
CXSD62579B CXSD62579C delivers 6A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Sch
CXSD62580A a monolithic buck switching regulator based on I2 architecture for fast transient response. Operating with an input range of 5.5V~26V 10A of continuous output
The CXSD62580A CXSD62580B CXSD62580C is a monolithic buck switching regulator based on I2 architecture for fast transient response. Operating with an input range of 5.5V~26V 10A of continuous output
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