The CXPR7897 is a charger front-end integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over-voltage threshold (VOVP = 6.8V). During input over-voltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The IC also monitors its die temperature and switches off if it exceeds 145℃. When the IC is controlled by a processor, the IC provides status information about fault conditions to the host.
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[ CXPR7897 ]"
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产品概述 返回TOP
The CXPR7897 is a charger front-end integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over-voltage threshold (VOVP = 6.8V). During input over-voltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The IC also monitors its die temperature and switches off if it exceeds 145℃. When the IC is controlled by a processor, the IC provides status information about fault conditions to the host.The CXPR7897 is available in Green TDFN-2×2-8L and MSOP-8 (Exposed Pad) packages and is rated over the -40℃ to +85℃ temperature range.
产品特点 返回TOP
• Input Over-Voltage Protection
• Accurate Battery Over-Voltage Protection
• Soft-Start to Prevent Inrush Currents
• Soft-Stop to Prevent Voltage Spikes
• 18V Maximum Input Voltage
• Supports up to 1.5A Load Current
• Thermal Shutdown
• Enable Function
• Fault Status Indication
• Available in Green MSOP-8 (Exposed Pad) and
TDFN-2×2-8L Packages
应用范围 返回TOP
Smart Phones, Mobile Phones
PDAs
MP3 Players
Low-Power Handheld Device
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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过压保护器件 |
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Product |
Input Over-Voltage Protection Threshold (V) |
Battery Over-Voltage Protection Threshold (V) |
Maximum Strat-Up Output Current (mA) |
SHDN Iq (μA) |
LDO Mode Output Voltage (V) |
Package |
|
6.8 |
4.35 |
1500 |
2 |
5.1 |
TDFN-2x2-8L MSOP-8(EP) |
|
|
6.8 |
4.35 |
adj (max 1500) |
2 |
5.1 |
TDFN-2x2-8L |
|
|
7.1 |
4.35 |
1500 |
2 |
5.1 |
TDFN-2x2-8L |
|
|
7.1 |
4.35 |
adj (max 1500) |
2 |
5.1 |
TDFN-2x2-8L |
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