The CXLB7333 is a complete battery charger controller for one (4.2V) cell lithium-ion battery. The CXLB7333 provides a small, simple and efficient solution to fast charge Li-ion battery. An external sense resistor sets the charge current with high accuracy. An internal resistor divider and precision reference set the final float voltage to 4.22V per cell with ±1% accuracy. When the input supply is removed, the CXLB7333 automatically enters a low current sleep mode, dropping the battery drain current to 6μA. After the charge cycle ends, if the battery voltage drops below 4.1V per cell, a new charge cycle will automatically begin.
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目录
产品概述 返回TOP
The CXLB7333 is a complete battery charger controller for one (4.2V) cell lithium-ion battery. The CXLB7333 provides a small, simple and efficient solution to fast charge Li-ion battery. An external sense resistor sets the charge current with high accuracy. An internal resistor divider and precision reference set the final float voltage to 4.22V per cell with ±1% accuracy. When the input supply is removed, the CXLB7333 automatically enters a low current sleep mode, dropping the battery drain current to 6μA. After the charge cycle ends, if the battery voltage drops below 4.1V per cell, a new charge cycle will automatically begin.
产品特点 返回TOP
●Input Supply Range: 4.7V-6V
●High Efficiency Current Mode PWM Controller
●End Charge Current Detection Output
●Constant Switching Frequency for Minimum Noise
● Preset 4.22V charge voltage with ±1% accuracy
● Automatic Recharge
●Automatic Shutdown When Input Supply is Removed
●Automatic Trickle Charging of Low Voltage
●Stable with Ceramic Output Capacitor
● Battery Temperature Sensing
● Available in SOP8 package
应用范围 返回TOP
●Charging Docks
●Handheld InstrumenTEMP
●Portable Computers
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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| Li-ion Battery Charger(锂电池充电芯片) | |||||||
| Part Number | VFLOAT | VIN | Max Charger | Charger | Accu. | IQ | Package |
| Type | |||||||
| CXLB7326 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 25uA | SOT23-5 |
| CXLB7327 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-5 |
| CXLB7328 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-5 |
| CXLB7329 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-6 |
| CXLB7330 | 4.2V/4.34V | 4.25-6.5V | 1000mA | Linear | ±1% | 55uA | ESOP8 |
| CXLB7331 | 4.2V/4.34V | 4.25-6.5V | 1000mA | Linear | ±1% | 55uA | ESOP8 |
| CXLB7332 | 8.4V/8.7V | 4.7-20V | 2000mA | Switch | ±1% | 10uA | SOP8 |
| CXLB7333 | 4.2V/4.34V | 4.7-5.5V | 2000mA | Switch | ±1% | 1uA | ESOP8 |
| Applications：①Mobile phone②MID③PDA④Battery Charger⑤Bluetooth equipment | |||||||
