CXPR7164提供完整的锂+充电器保护，防止输入过电压、输入过电流和过热。当监测到的任何参数超过阈值时，IC关闭充电电流。所有保护装置也有防电压尖峰或电流瞬变引起误触发的脱胶时间。CXPR7164集成了一个5.5V的LDO，以防止ACIN超调达到CHRòLDO和OUT。当ACIN引脚中出现任何高于5.5V的瞬态峰值电压，但低于OVP阈值时，内部LDO将其输出钳制在5.5V。当ACIN电压超过OVP阈值时，设备将关闭充电电流。充电电流由GATDRV引脚控制。当从GATDRV管脚提供电流时，输出管脚提供的充电电流是GATDRV电流放大200倍的幅度。其他功能包括精确的VVCTT/VACIN分压器、从OUT到ACIN的反向电流阻断和OTP保护。CXPR7164提供完整的Li+充电器保护，并为手机PMIC的充电器节省了外部MOSFET和肖特基二极管。以上特性和小型封装使CXPR7164成为手机应用的理想管脚配置部件
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产品概述 返回TOP
The CXPR7164 provides complete Li+ charger protection against input over-voltage, input over-current and overtemperature. When any of the monitored parameters is over the threshold, the IC turns off the charging current. All protections also have deglitch time against false triggering due to voltage spikes or current transients. The CXPR7164 integrates a 5.5V LDO to prevent ACIN overshoot reaching CHR_LDO and OUT. When any transient peak voltage above 5.5V presenting in ACIN pin, but below OVP threshold, the internal LDO will clamp its output at 5.5V. When ACIN voltage exceeds OVP threshold, the device will turn off charging current. The charging current is controlled by the GATDRV pin. When sourcing a current from the GATDRV pin, the OUT pin delivers the charging current which is 200-fold magnified in amplitude based on GATDRV’s current. Other features include accurate VVCDT/VACIN voltage divider, reverse current blocking from OUT to ACIN and OTP protection. The CXPR7164 provides complete Li+ charger protections, and saves the external MOSFET and Schottky diode for the charger of cell phone’s PMIC. The above features and small package make the CXPR7164 an ideal Pin Configuration part for cell phones applications
产品特点 返回TOP
· Provide OUT Pin 5V Voltage Clamping Protection
· Thermal Charging Regulation Protection
· Provide Input Over-voltage Protection
· Provide Input Over-current Protection
· Provide Over Temperature Protection
· Provide Reverse Current Blocking
· High Immunity of False Triggering
· High Accuracy Protection Threshold
· Low On Resistance 0.3W Typ.
· Compact TDFN2x2-8 and DFN3x3-8 Packages
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Cell Phones
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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Battery Management > Battery Charger Protection IC |
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Part_No |
Package |
Vin(V) |
Out. Cur. max (A) |
Quies Current (uA) |
Battery OVP (V) |
VIN OVP |
Current Limit |
Power Switch On Resistance (milohm) |
EN |
Inte grated PMOS |
LDO Mode for VIN OVP |
|
|
min |
max |
|||||||||||
|
TDFN2x2-8 |
4.5 |
5.5 |
1500 |
250 |
4.35 |
5.85 6.8 |
Adj |
250 |
Y |
N |
N |
|
|
TDFN2x2-8 |
4.5 |
5.5 |
1500 |
250 |
4.435 |
5.85 |
Adj |
250 |
Y |
N |
N |
|
|
TDFN4x3-12 |
4.5 |
5.5 |
1500 |
250 |
4.35 |
5.85 6.8 |
Adj |
250 |
Y |
N |
N |
|
|
TDFN2x2-8 |
4.5 |
5.5 |
1500 |
250 |
4.35 |
5.85 6.8 |
Adj |
250 |
Y |
N |
N |
|
|
TDF2x2-8 |
4.5 |
5.5 |
2000 |
250 |
4.35 4.435 |
5.85 6.8 7.2 |
Adj |
130 |
Y |
N |
N |
|
|
TDFN2x2-8 |
4.5 |
5.5 |
2000 |
155 |
N |
5.85 5.33 5.5 |
N |
80 |
N |
N |
N |
|
|
TDFN2x2-8 TSOT23-6A |
4.5 |
5.5 |
700 |
250 |
4.35 |
6.17 6.8 7.65 |
1300 |
500 |
N |
Y |
N |
|
|
TDFN2x2-8 TSOT23-6A |
4.5 |
5.5 |
600 |
250 |
4.35 |
6.17 |
450 550 650 |
500 |
N |
Y |
N |
|
|
TDFN2x2-8 |
4.5 |
5.5 |
700 |
250 |
4.35 |
6.17 *6.8 |
1500 |
500 |
N |
Y |
N |
|
|
TDFN2x2-8 |
4.5 |
9 |
700 |
250 |
N |
6.8 10 |
1250 |
750 |
N |
Y |
Y |
|
|
TDFN2x2-8 DFN3x3-8 |
4.5 |
9 |
700 |
350 |
N |
10 |
1200 |
750 |
N |
Y |
Y |
|
|
FN3x3-8 |
4.5 |
6.5 |
1000 |
350 |
N |
6.8 |
1700 |
300 |
N |
Y |
Y |
|
|
WLCSP0.74 x1.14-5 |
4.5 |
5.5 |
250 |
2000 |
N |
5.85 6.8 |
Adj |
90 |
N |
N |
N |
|
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下一篇▶:CXPR7165锂电充电器保护防止输入过电压过电流保护ILIM引脚连接到接地的电阻器进行编程当任何监测参数超过阈值时IC通过关闭内部开关来切断充电系统的电源
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