Bluetooth charging stand SOC CXLB74212 integrated lithium battery charging management synchronous boost converter battery power management and protection function while the chip's own standby current is only 7uA

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The CXLB74212 is a Bluetooth charging dock SOC with integrated lithium battery charge management, synchronous boost converter, battery power management and protection functions. The complete functional integration of the chip makes the external application components very few, which can greatly reduce the size of the scheme and reduce the BOM cost. At the same time, the standby current of the chip itself is only 7uA. The CXLB74212 charging current is 0.38A, and the synchronous boost converter supports 0.8A output, supports automatic on/off and key on/off, and the automatic shutdown current is 5mA. The CXLB74212 has built-in power supply path management, supports the function of charging while discharging, and also provides heavy load and short circuit protection when charging while discharging, thus saving external diodes and effectively preventing external diodes from burning out during heavy load and short circuit.

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The CXLB74212 is a Bluetooth charging dock SOC with integrated lithium battery charge management, synchronous boost converter, battery power management and protection functions. The complete functional integration of the chip makes the external application components very few, which can greatly reduce the size of the scheme and reduce the BOM cost. At the same time, the standby current of the chip itself is only 7uA. The CXLB74212 charging current is 0.38A, and the synchronous boost converter supports 0.8A output, supports automatic on/off and key on/off, and the automatic shutdown current is 5mA. The CXLB74212 has built-in power supply path management, supports the function of charging while discharging, and also provides heavy load and short circuit protection when charging while discharging, thus saving external diodes and effectively preventing external diodes from burning out during heavy load and short circuit.

Product FeaturesReturn to Topd1B嘉泰姆

Built-in power path management with protection, supporting charging and dischargingd1B嘉泰姆
Press the automatic power-on button to start the machined1B嘉泰姆
Automatic shutdown button long press shutdownd1B嘉泰姆
Automatic shutdown current 5mAd1B嘉泰姆
Ultra-low standby current only 7uAd1B嘉泰姆
Charging current 0.38Ad1B嘉泰姆
Discharge current 0.8Ad1B嘉泰姆
Preset 4.2V/4.35V charging voltaged1B嘉泰姆
Intelligent temperature adjustment functiond1B嘉泰姆
Output short-circuit protection/heavy-duty protection/input overvoltage protectiond1B嘉泰姆
ESOP-8L packaged1B嘉泰姆

Scope of applicationReturn to Topd1B嘉泰姆

Bluetooth headset charging standd1B嘉泰姆

torch flashlightd1B嘉泰姆
Battery-Powered Handheld Portable Devicesd1B嘉泰姆

Technical Specification (Product PDF)Return to Top d1B嘉泰姆

If you need detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!d1B嘉泰姆

QQ截图20160419174301.jpg d1B嘉泰姆

Product packaging diagramReturn to Topd1B嘉泰姆

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Circuit schematicReturn to Topd1B嘉泰姆

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Related Chip Selection GuideReturn to Top More similar products......d1B嘉泰姆

TWS Bluetooth Headset Charging Stand IC
Model	Function	Charging operating voltage	Charging current	Detection accuracy	Boost current	Standbyd1B嘉泰姆 Power consumption	Protection function	Encapsulation	Features
CXLB74205	Synchronous switch charging management module synchronous rectifier boost discharge management module power detection andLEDIndicating module	4.4-5.5V	0.3A	1%	1A	60uA	Output overcurrent/Overvoltage/Short Circuit Protection Input Overvoltage/overcharge/over-release/Over-current discharge protection Overall over-temperature protection	ESOP-8	3-4OneLEDThe lamp indicates the power level or1-2LEDIndicating status,LEDLighting function, with side charging and side placing function,6-8mAAutomatic load detection function, with button boot, adaptive charging current adjustment, matching all adapters, up to boost efficiency91%, charging efficiency up93%
CXLB74206	Synchronous switch charging management module synchronous rectifier boost discharge management module power detection andLEDIndicating module	4.4-5.5V	0.5A	1%	1A	60uA	Output overcurrent/Overvoltage/Short Circuit Protection Input Overvoltage/overcharge/over-release/Over-current discharge protection Overall over-temperature protection	ESOP-8	3-4OneLEDThe lamp indicates the power level or1-2LEDIndication status,BeltLEDLighting function, with side charging and side placing function,6-8mAAutomatic load detection function, with button boot, adaptive charging current adjustment, matching all adapters, up to boost efficiency91%, charging efficiency up93%
CXLB74207	Linear charge management module synchronous rectifier boost discharge management moduleLEDIndicating module	4.4-5.5V	0.7A	1%	1A	50uA	Discharge output with overcurrent/Overvoltage/Over-temperature/Short circuit protection	SOP-8	2OneLEDLamp indicates charge and discharge status;Button boot, load current is less20mAGo to sleep;Boost operating frequency1MHz, the highest efficiency91%,ESD 2KVOperating temperature range:-40℃To 85℃
CXLB74208	Linear charge management module synchronous rectifier boost discharge management moduleLEDIndicating module	4.4-5.5V	1A	1%	1A	100uA	Discharge output with overcurrent/Overvoltage/Over-temperature/Short circuit protection	ESOP-8	4LEDLamp indicates power and charge and discharge status;Boot with button,Belt20mAAutomatic detection of load current,When the load current is lower20mAMore16After seconds,The output voltage remains5.1V(but can not give the output current),LEDLight out,Remind the user that the charging of the external device has ended. Boost operating frequency1MHz,Efficiency up90%,BeltLEDLighting,ESD 2KVOperating temperature range:-40℃To 85℃
CXLB74210	Linear charge management module synchronous rectifier boost discharge management moduleLEDIndicating module	4.5-5.25VWithstand voltage7.0V	0.15A	1%	0.5A/	18uA	Load over-current input over-voltage output current limiting output short-circuit chip over-temperature protection	SOP-8	Boost efficiency up90%;Support side filling and side placing;Support2 LEDLamp charge and discharge indication and abnormality;With trickle/Constant current/Constant voltage three-stage charging; with button to turn on the boost;Long press to turn off the boost;After boost load;The indicator light is on8Extinguished after seconds;With automatic load identification function, automatically turn on the boost output after detecting the load; no-load detection turns off the boost function, and the judgment current is about5-15mAPower on the input power/Power down,Battery automatic boost power supply; boost working frequency1MHz,Support1.5uHInductance,Built-inMOS;Operating temperature range:-40℃To 85℃
CXLB74211	Linear charge management module synchronous rectifier boost discharge management moduleLEDIndicating module	4.4-5.5V	0.38A	1%	0.7A	60uA	Output Short Circuit Protection Heavy Duty Protection Input6VOver-voltage protection intelligent temperature adjustment function	SOP-8	2LEDThe lamp indicates the charging and discharging state, and the power path management with protection is built in, which supports charging and discharging at the same time. Automatic detection of load startup+Press the key to click the boot; automatic detection load shutdown+Press the key for a long time to shut down; the automatic shutdown current threshold is6.5mA; The headset is not in the warehouse. Ultra-low standby current only7uA; Boost working frequency1MHz, support1.5uHInductors, Built-inMOS；ESD(HBM)2KVOperating temperature range:-40℃To 85℃
CXLB74212	Linear charge management module synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.4-5.5V	0.38A	1%	0.8A	60uA	Output Short Circuit Protection Heavy Duty Protection Input6VOver-voltage protection intelligent temperature adjustment function	ESOP-8	4LEDThe lamp indicates the power and charge and discharge status, and has built-in power path management with protection, supporting charging and discharging at the same time. Automatically detect load startup+Press the key to click the boot; automatic detection load shutdown+Press the key for a long time to shut down; the automatic shutdown current threshold is6.5mA; The headset is not in the warehouse. Ultra-low standby current7uA; Boost working frequency1MHz, support1.5uHInductors, Built-inMOS；ESD(HBM)2KVOperating temperature range:-40℃To 85℃
CXLB74213	Linear charge management module synchronous rectifier boost discharge management moduleLEDIndicating module	4.4-5.5V	0.38A	3%	0.8A	50uA	Output Short Circuit Protection Heavy Duty Protection Input6VOver-voltage protection intelligent temperature adjustment function	SOP-8	2LEDLamp indicates charge and discharge status,Support Hall drive to realize cover opening and return connection:Open cap output high level,Cover Output Low,With enable end,If the enable is high, the boost is turned off.,When the enable is low, the boost is normally open.,Working current90uA,If the load current is less10mATurn off the indicator light.,Built-in power path management with protection,Support side filling and side placing;Boost operating frequency1MHz, support1.5uHInductors, Built-inMOS；ESD(HBM)2KVOperating temperature range:-40℃To 85℃
CXLB74214	Synchronous switch charging management module Synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.75-5.5V	0.32A	0.60%	1.0A	20uA	Output overcurrent/Overvoltage/Short Circuit Protection Input Overvoltage/overcharge/over-release/Over-current discharge protection Overall over-temperature protection	ESOP-8	1-4LEDThe lamp indicates the power and charge and discharge status, and the boost efficiency is up93%, charging efficiency up92%; Built-in power path management, support while charging; Support4.20V/4.35VBattery (2Selection of external resistance of foot: non-connected resistance is4.20Vbattery, connected47KTo the ground4.35Vbattery), full voltage4.22V/4.37V; Adaptive charging current adjustment, matching all adapters; support4/3/2/1ALEDPower display; with a button to start, double-click the button to shut down; with intelligent automatic identification of load start,5mASmall current automatically into standby; Boost working frequency500KHz; Built-inMOS, single inductor to realize charging and discharging;ESD 4KVOperating temperature range:0℃To 70℃
CXLB74215	Synchronous switch charging management module Synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.75-5.5V	0.3A	0.60%	0.3A	5uA	Output overcurrent/Overvoltage/Short Circuit Protection Input Overvoltage/overcharge/over-release/Over-current discharge protection Overall over-temperature protection	ESOP-8	1-4LEDThe lamp indicates the power and charge and discharge status, and the boost efficiency is up93%, charging efficiency up92%; Built-in power path management, support while charging; Support4.20V/4.35VBattery (2Selection of external resistance of foot: non-connected resistance is4.20Vbattery, connected47KTo the ground4.35Vbattery), full voltage4.22V/4.37V; Adaptive charging current adjustment, matching all adapters; support4/3/2/1ALEDPower display; with a key to boot, double-click the button to shut down;8Seconds automatically turn off the light, click to view the power; with intelligent automatic identification of load start, automatic detection of Bluetooth headset in and out,5mASmall current automatically into standby; Boost working frequency500KHz; Built-inMOS, single inductor to realize charging and discharging;ESD 4KVOperating temperature range:0℃To 70℃
CXLB74216	Synchronous switch charging management module Synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.75-5.5V	1.1A	0.60%	1.5A	20uA	Output overcurrent/Overvoltage/Short Circuit Protection Input Overvoltage/overcharge/over-release/Over-current discharge protection Overall over-temperature protection	ESOP-8	1-4LEDThe lamp indicates the power and charge and discharge status, and the boost efficiency is up93%, charging efficiency up92%; Built-in power path management, support while charging; Support4.20V/4.35VBattery (2Selection of external resistance of foot: non-connected resistance is4.20Vbattery, connected47KTo the ground4.35Vbattery), full voltage4.22V/4.37V; Adaptive charging current adjustment, matching all adapters; support4/3/2/1ALEDPower display; Turn on with key, double-click the key to turn off, and press the key to turn on for a long time./OffLEDlighting; built-inLEDLighting drive, no current limiting resistor; with intelligent automatic identification of load start, automatic detection of load insertion and pull out,5mASmall current automatically into standby; Boost working frequency500KHz; Built-inMOS, single inductor to realize charging and discharging;ESD 4KVOperating temperature range:0℃To 70℃
CXLB74217	Synchronous switch charging management module Synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.60V-5.5VWithstand voltage6.0V	0.42A	0.60%	0.8A	15uA-25uA	With temperature compensation/over-temperature protection/overcharge and overdischarge protection/With output overvoltage/Overloading/Short circuit protection	ESOP-8	2LEDLamp indicates charge and discharge status, boost/Charging efficiency up94%; Support charging and discharging; Full voltage4.2V, accuracy±1%; Adaptive charging current adjustment, matching all adapters; Support trickle charging and0VCharging; with a button to start, double-click the button to shut down; automatic switch machine, with intelligent automatic identification of load start,7.5mASmall current automatically into standby; Boost working frequency500KHz; Built-inMOS, single inductor to realize charging and discharging;ESD（HBM）3.5KVOperating temperature range:-20℃To 85℃
CXLB74218	Synchronous switch charging management module Synchronous rectifier boost discharge management moduleLEDPower detection and indication module	4.60V-5.5VWithstand voltage6.0V	0.42A	0.60%	0.8A	15uA-25uA	With temperature compensation/over-temperature protection/overcharge and overdischarge protection/With output overvoltage/Overloading/Short circuit protection	ESOP-8	4LEDThe lamp indicates the state of power and charge and discharge, and supports charging and discharging at the same time. Full voltage4.2V, accuracy±1%; Adaptive charging current adjustment, matching all adapters; Support trickle charging and0Vcharging; support4LEDPower display; with a button to start, double-click the button to shut down; automatic switch machine, with intelligent automatic identification of load start,7.5mASmall current automatically into standby; Boost working frequency500KHz; Built-inMOS, single inductor to realize charging and discharging;ESD（HBM）3.5KVOperating temperature range:-20℃To 85℃

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