Texas Instruments BQ25710EVM-017, User Manual

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Introduction
3 SLUUBT8A – June 2018 – Revised July 2018
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Copyright © 2018, Texas Instruments Incorporated
BQ2571x Evaluation Module
Table 1 lists the I/O descriptions.
Table 1. I/O Description
Jack Description
J1–VIN Input: positive terminal
J1–GND Input: negative terminal (ground terminal)
J2-ILIM_control External converter disable; logic high to pull the ILIM pin down
J2-CHRG_OK CHRG_OK output
J2-ENZ_OTG External OTG disable pin
J2-CELL_control External battery removal control; logic high to pull the CELL pin down
J3–3V3 Onboard 3.3-V output
J3–SDA SMBUS or I
2
C SDA
J3-SCL SMBUS or I
2
C SCL
J3-GND Ground
J4-CMPOUT CMPOUT pin output
J4-GND Ground
J4-CMPIN External CMPIN pin input
J5-BAT Connected to battery pack output
J5-GND Ground
J6-SYS Connected to system output
J6-GND Ground
Table 2 displays the controls and key parameters settings.
Table 2. Controls and Key Parameters Setting
Jack Description Factory Setting
JP1
JP7 Inrush control setting:
spa 1. Bypass inrush control circuit
spa1. JP1 on: bypasses input FETs Q9 and Q10 external selector spa1.
spa1. JP7 top two connection (pin 2 is connected to pin 3): VBUS pin on ACP
spa 2. Enable inrush control circuit
spa2. JP1 off: CHRG_OK controls Q9 and Q10 external selector
spa2. JP7 bottom two connection: VBUS pin on V
IN
Bypass inrush control circuit:
spa JP1 installed
spa JP7 top two position installed
spa (pin2 is connected pin3)
JP2
JP3
JP4 CELL setting:
spa 1S: JP2, JP3, JP4 all open, measure CELL pin voltage 1.2 V
spa 2S: JP2 closed, JP3 and JP4 open, measure CELL pin voltage 2.7 V
spa 3S: JP3 closed, JP2 and JP4 open, measure CELL pin voltage 3.5 V
spa 4S: JP2, JP3 closed, JP4 open, measure CELL pin voltage 4.2 V Bat
spa removal, short JP4
2S setting: JP2 installed JP3, JP4 all
open
JP5 Jumper on: Pre-bias ILIM_HIZ
Jumper off: Ground ILIM_HIZ Installed
JP6 For input current setting:
spa Jumper on: ILIM_HIZ LOW.
spa Jumper off: Allow pre-bias ILIM_HIZ
Not installed
JP8 Jumper on: On-board LDO to drive the EVM 3V3
Jumper off: disconnect on-board LDO to drive the EVM 3V3 Installed