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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  
SLUSBP6A SEPTEMBER 2013REVISED OCTOBER 2013  
www.ti.com  
Charge Termination/Timer Control Register REG05 (default 10011010, or 0x9A)  
BIT  
DESCRIPTION  
NOTE  
Charging Termination Enable  
Bit 7  
Bit 6  
EN_TERM  
Reserved  
0 – Disable, 1 – Enable  
0 - Reserved  
Default: Enable termination (1)  
I2C Watchdog Timer Setting  
Bit 5  
Bit 4  
WATCHDOG[1] 00 – Disable timer, 01 – 40s, 10 – 80s, 11 –  
Default: 40s (01)  
160s  
WATCHDOG[0]  
Charging Safety Timer Enable  
Bit 3 EN_TIMER 0 – Disable, 1 – Enable  
Fast Charge Timer Setting  
Default: Enable (1)  
Bit 2  
Bit 1  
Bit 0  
CHG_TIMER[1] 00 – 5 hrs, 01 – 8 hrs, 10 – 12 hrs, 11 – 20  
Default: 12 hrs (10)  
(See Charging Safety Timer for details)  
hrs  
CHG_TIMER[0]  
Reserved  
0 - Reserved  
Boost Voltage/Thermal Regulation Control Register REG06 (default 01110011, or 0x73)  
BIT  
DESCRIPTION  
512mV  
NOTE  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
BOOSTV[3]  
BOOSTV[2]  
BOOSTV[1]  
BOOSTV[0]  
BHOT[1]  
Offset: 4.55V  
Range: 4.55V – 5.51V  
Default:4.998V(0111)  
256mV  
128mV  
64mV  
Set Boost Mode temperature monitor  
threshold voltage to disable boost mode  
Voltage to disable boost mode  
Default: Vbhot1 (00)  
Note: For BHOT[1:0]=11, boost mode operates without  
temperature monitor and the NTC_FAULT is generated based  
BHOT[0]  
00 – Vbhot1 (33% of REGN or 55C w/ 103AT on Vbhot1 threshold  
thermistor)  
01 – Vbhot0 (36% of REGN or 60C w/ 103AT  
thermistor)  
10 – Vbhot2 (30% of REGN or 65C w/ 103AT  
thermistor)  
11 – Disable boost mode thermal protection.  
Thermal Regulation Threshold  
Bit 1  
Bit 0  
TREG[1]  
TREG[0]  
00 – 60°C, 01 – 80°C, 10 – 100°C, 11 –  
120°C  
Default: 120°C (11)  
Misc Operation Control Register REG07 (default 01001011, or 4B)  
BIT  
DESCRIPTION  
NOTE  
Force DPDM detection  
Bit 7  
DPDM_EN  
0 – Not in D+/D– detection;  
1 – Force D+/D– detection when VBUS power is  
presence  
Default: Not in D+/D– detection (0), Back to 0  
after detection complete  
Safety Timer Setting during Input DPM and Thermal Regulation  
Bit 6  
TMR2X_EN  
0 – Safety timer not slowed by 2X during input DPM Default: Safety timer slowed by 2X (1)  
or thermal regulation,  
1 – Safety timer slowed by 2X during input DPM or  
thermal regulation  
Force BATFET Off  
Bit 5  
BATFET_Disable  
0 – Allow BATFET (Q4) turn on, 1 – Turn off  
BATFET (Q4)  
Default: Allow BATFET (Q4) turn on(0)  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Reserved  
0 - Reserved  
1 - Reserved  
0 - Reserved  
Reserved  
Reserved  
INT_MASK[1]  
0 – No INT during CHRG_FAULT, 1 – INT on  
CHRG_FAULT  
Default: INT on CHRG_FAULT (1)  
Default: INT on BAT_FAULT (1)  
Bit 0  
INT_MASK[0]  
0 – No INT during BAT_FAULT, 1 – INT on  
BAT_FAULT  
20  
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Copyright © 2013, Texas Instruments Incorporated  
Product Folder Links: bq24296 bq24297  
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