Texas Instruments BQ769142, Руководство пользователя

Страница: 6 / 80

Table 6-1. BQ769142 TQFP Package (PFB) Pin Functions (continued)
PIN
I/O TYPE DESCRIPTION
NO. NAME
31 DCHG I/O OD, I/OA
Multifunction pin, can be DCHG, thermistor input, general purpose ADC input, or
general purpose digital output
32 DDSG I/O OD, I/OA
Multifunction pin, can be DDSG, thermistor input, general purpose ADC input, or
general purpose digital output
33 RST_SHUT I ID Digital input pin for reset or shutdown
34 REG2 O P
Second LDO (REG2) output, which can be programmed for 1.8 V, 2.5 V, 3.0 V, 3.3 V,
or 5.0 V
35 REG1 O P
First LDO (REG1) output, which can be programmed for 1.8 V, 2.5 V, 3.0 V, 3.3 V, or
5.0 V
36 REGIN I IA Input pin for REG1 and REG2 LDOs
37 BREG O OA Base control signal for external preregulator transistor
38 FUSE I/O I/OA Fuse sense and drive
39 PDSG O OA Predischarge PFET control
40 PCHG O OA Precharge PFET control
41 LD I/O I/OA Load detect pin
42 PACK I IA Pack sense input pin
43 DSG O OA NMOS Discharge FET drive output pin
44 NC — — This pin is not connected to silicon.
45 CHG O OA NMOS Charge FET drive output pin
46 CP1 I/O I/OA Charge pump capacitor
47 BAT I P Primary power supply input pin
48 VC14 I IA
Sense voltage input pin for the fourteenth cell from the bottom of the stack, balance
current input for the fourteenth cell from the bottom of the stack, and top-of-stack
measurement point
P = Power Connection, O = Digital Output, AI = Analog Input, I = Digital Input, I/OD = Digital Input/Output
BQ769142
SLUSE91A – SEPTEMBER 2020 – REVISED FEBRUARY 2021
www.ti.com
6 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: BQ769142