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BQ24297 参数 Datasheet PDF下载

BQ24297图片预览
型号: BQ24297
PDF下载: 下载PDF文件 查看货源
内容描述: I2C控制3A单节USB充电器 [I2C Controlled 3A Single Cell USB Charger]
分类和应用:
文件页数/大小: 48 页 / 1390 K
品牌: TI [ TEXAS INSTRUMENTS ]
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bq24296  
bq24297  
www.ti.com  
SLUSBP6A SEPTEMBER 2013REVISED OCTOBER 2013  
Charge Current Control Register REG02 (default 01100000, or 60)  
BIT  
DESCRIPTION  
NOTE  
Fast Charge Current Limit  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
ICHG[5]  
ICHG[4]  
ICHG[3]  
ICHG[2]  
ICHG[1]  
ICHG[0]  
BCOLD  
2048mA  
1024mA  
512mA  
256mA  
128mA  
64mA  
Offset: 512mA  
Range: 512-3008mA (000000 - 100111)  
Default: 2048mA (011000)  
Note: ICHG higher than 3008mA is not suported  
Set Boost Mode temperature monitor threshold  
voltage to disable boost mode  
Default: Vbcold0 (0)  
0 – Vbcold0 (Typ. 76% of REGN or -10C w/ 103AT  
thermistor )  
1 – Vbcold1 (Typ. 79% of REGN or -20C w/ 103AT  
thermistor)  
Bit 0  
FORCE_20PCT  
0 – ICHG as Fast Charge Current (REG02[7:2])  
Default: ICHG as Fast Charge Current (REG02[7:2]) and  
and IPRECH as Pre-Charge Current (REG03[7:4]) IPRECH as Pre-Charge Current (REG03[7:4])  
programmed  
programmed (0)  
1 – ICHG as 20% Fast Charge Current  
(REG02[7:2]) and IPRECH as 50% Pre-Charge  
Current (REG03[7:4]) programmed  
Pre-Charge/Termination Current Control Register REG 03 (default 00010001, or 0x11)  
BIT  
DESCRIPTION  
NOTE  
Pre-Charge Current Limit  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
IPRECHG[3] 1024mA  
IPRECHG[2] 512mA  
Offset: 128mA,  
Range: 128mA – 2048mA  
Default: 256mA (0001)  
IPRECHG[1] 256mA  
IPRECHG[0] 128mA  
Termination Current Limit  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
ITERM[3]  
ITERM[2]  
ITERM[1]  
ITERM[0]  
1024mA  
512mA  
256mA  
128mA  
Offset: 128mA  
Range: 128mA – 2048mA  
Default: 256mA (0001)  
Charge Voltage Control Register REG04 (default 10110010, or 0xB2)  
BIT  
DESCRIPTION  
NOTE  
Charge Voltage Limit  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
VREG[5]  
VREG[4]  
VREG[3]  
VREG[2]  
VREG[1]  
VREG[0]  
BATLOWV  
512mV  
Offset: 3.504V  
Range: 3.504V – 4.400V  
Default: 4.208V  
256mV  
128mV  
64mV  
32mV  
16mV  
0 – 2.8V, 1 – 3.0V  
Default: 3.0V (1) (pre-charge to fast charge)  
Default: 100mV (0)  
Battery Recharge Threshold (below battery regulation voltage)  
Bit 0 VRECHG 0 – 100mV, 1 – 300mV  
Copyright © 2013, Texas Instruments Incorporated  
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