BQ25071-Q1 Datasheet, PDF (15/22 Pages) Texas Instruments – Automotive Qualified

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9 Application and Implementation
bq25071-Q1
SLUSCD6 – APRIL 2016
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The typical application circuit uses a single output which charges the battery and powers the system. Additionally
a 50-mA LDO can supply a low power external circuit.
The bq25071EVM-658 evaluation module (EVM) is a complete charger module for evaluating the bq25071-Q1.
Refer to SLUUB49.
9.2 Typical Application
USB or TA
VBUS
GND
D+
D-
C1
0.1 mF
bq25071-Q1
CHG
IN
OUT
V_GPIO
R2
100 kW
C2
1 mF
STATUS
VDD
ABB
EN
BAT
TS
TEMP
PACK +
R1
1 kW
ISET
GND
LDO
PWRPD
PACK -
C2
0.1 mF
R5
1.5 kW
R3
1.5 kW
R4
1.5 kW
VCHG DET
USB DET
VUSBIN
ACDET
GPIO
Copyright © 2016, Texas Instruments Incorporated
Figure 11. bq25071-Q1 Typical Application Circuit
9.2.1 Design Requirements
PARAMETER
Input supply range
Output voltage range
Output current rating
Table 2. Design Parameters
EXAMPLE VALUE
5 V ±5%
3.5 V
1000 mA
Copyright © 2016, Texas Instruments Incorporated
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