The CXLB7371 is a constant-current/constant-voltage linear charger for single cell Li+ batteries. The CXLB7371 needs no external MOSFET or diodes, and accepts input voltage up to 6.0V. The small packages and low external component count make the CXLB7371 ideally suited for portable applications. On-chip thermal limiting simplifies PC board layout and allows optimum charging rate without the thermal limits imposed by worst-case battery and input voltage. When the CXLB7371 thermal limit is reached, the charger does not shut down but simply reduces charging current. Ambient or battery temperature can be monitored with an external thermistor. When the temperature is out of range, charging pauses. Other features include the STAT1 and 2 outputs to indicate four charge states, and the EN input, switches the CXLB7371on or off. The CXLB7371is available in 3mmx3mm DFN-10 package, and operates over the -40癈 to +85癈 temperature range
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产品概述 返回TOP
The CXLB7371 is a constant-current/constant-voltage linear charger for single cell Li+ batteries. The CXLB7371 needs no external MOSFET or diodes, and accepts input voltage up to 6.0V. The small packages and low external component count make the CXLB7371 ideally suited for portable applications. On-chip thermal limiting simplifies PC board layout and allows optimum charging rate without the thermal limits imposed by worst-case battery and input voltage. When the CXLB7371 thermal limit is reached, the charger does not shut down but simply reduces charging current. Ambient or battery temperature can be monitored with an external thermistor. When the temperature is out of range, charging pauses. Other features include the STAT1 and 2 outputs to indicate four charge states, and the EN input, switches the CXLB7371on or off. The CXLB7371is available in 3mmx3mm DFN-10 package, and operates over the -40°C to +85°C temperature range
产品特点 返回TOP
· Programmable Charge Current Up to 1A
· Charge Status Output Pins
· Soft-Start Limits Inrush Current
· 4.2V Charge Voltage with ±1% Accuracy
· Fixed 55mA Prequal Charge Current
· Thermal Limiting Simplifies Board Design
· External Thermistor Monitor
· Enable/Disable Control
· 3mm x 3mm DFN-10 Package (DFN3x3-10)
· Disable Charging When VIN > 6.4V
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· PDAs
· MP3 Players
· Cell Phones
· Wireless Appliances
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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Battery Charger > Linear Charger |
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|
Part_No |
Package |
Input Voltage(V) |
Quiescent Current (uA) |
Charge Current (max)(A) |
Battery Charge Voltage |
VIN OVP |
USB Input |
Battery-Load Switch |
Charge State Output |
|
|
min |
max |
|||||||||
|
4.35 |
6 |
2000 |
1000 |
4.2 |
Y |
Y |
Y |
Y |
||
|
DFN3x3-10 |
4.35 |
6 |
2000 |
1000 |
4.2 |
N |
N |
N |
Y |
|
|
SOT-23-5 |
4.35 |
6 |
300 |
500 |
4.2 |
N |
N |
N |
Y |
|
|
DFN3x3-10 |
4.35 |
6.5 |
300 |
500 |
4.2 |
N |
N |
N |
Y |
|
