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BQ25708 Folha de dados(PDF) 29 Page - Texas Instruments

Nome de Peças BQ25708
Descrição Electrónicos  BQ25713, BQ25713B I2C Narrow VDC Buck-Boost Battery Charge Controller With System Power Monitor and Processor Hot Monitor
PDF  94 Pages
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Fabricante Electrônico  TI2 [Texas Instruments]
Página de início  https://www.ti.com
Logo TI2 - Texas Instruments

BQ25708 Folha de dados(HTML) 29 Page - Texas Instruments

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background image
10ms
Debounce
PROCHOT
• 10ms
+
PP_ICRIT
VDD
ICRIT
IADPT
+
PP_INOM
INOM
Low Pass
Filter
+
PP_IDCHG
IDCHG_VTH
IDCHG
+
PP_VSYS
VSYS_VTH
V_SRP
+
PP_VDPM
A*VDPM
VBUS
EXIT_VAP
(triggered by IN_VAP
falling edge)
PP_CMP
PP_BATPRES
PP_ACOK
CELL_BATPRESZ
(one shot on pin falling edge)
CMPOUT
CHRG_OK
(one shot on pin falling edge)
< 0.3V
Adjustable
Deglitch
Fixed
Deglitch
Figure 9-2. PROCHOT Profile
9.3.9.1 PROCHOT During Low Power Mode
During low power mode (REG0x01[7] = 1), the charger offers a low power PROCHOT function with very
low quiescent current consumption (~150uA), which uses the independent comparator to monitor the system
voltage, and assert PROCHOT to CPU if the system power is too high.
Below lists the register setting to enable PROCHOT monitoring system voltage in low power mode.
• REG0x01[7] = 1 to enable charger low power mode.
• REG0x38[7:0] = 00h
• REG0x30[6:4] = 100
• Independent comparator threshold is always 1.2 V
• When REG0x31[5] = 1, charger monitors system voltage. Connect CMPIN to voltage proportional to system.
PROCHOT triggers from HIGH to LOW when CMPIN voltage rises above 1.2 V.
www.ti.com
BQ25713, BQ25713B
SLUSD83C – JUNE 2018 – REVISED MAY 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: BQ25713 BQ25713B



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