Texas Instruments BQ25181, Руководство пользователя

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1 Introduction
The BQ25181EVM is an evaluation kit for the BQ25181 battery charge management IC. The BQ25181 is an I
2
C
controlled, 1-A linear battery charger with Power Path in a small QFN package with a thermal pad. The BQ25181
integrates the most common functions for industrial and personal electronics applications and provides ultra-low
IQ, integrated protections, programmability, TS monitoring, and best thermal performance in a small solution
size.
1.1 Features
This EVM has the following features:
• 1-A linear battery charger
• I
2
C configurable battery regulation voltage with 0.5% accuracy
• Configurable termination ucrrent down to 0.5 mA
• Programmable thermal charging profile with configurable Hot, Warm, Cool, and Cold thresholds
• Power Path management for powering the system and charging the battery
• 15-nA Shutdown mode for longest shelf life
• One button wake-up and reset input with adjustable timers
• I
2
C communication control
• Dedicated VIN Power Good (PG) and Charge Enable (CE) pins
1.2 EVM Setup
Table 1-1 lists the jumper connections and the jumper description.
Table 1-1. Jumper Descriptions
Jumper Name Description
J1 Provide the I
2
C pull-up to 3p3 V. Note: The USB2ANY will provide this pull-up when using the TI Charger GUI
J2 VIN and GND connector. Input voltage from external power supply. Recommended voltage is 5 V and OVP is
5.7 V. Max input voltage is 25 V while in OVP.
J3 VBAT and GND connector. Battery connection using jumper for easy access.
J4 Battery pack connector. Battery connection using JST header.
J5 TS potentiometer connector. Connects TS potentiometer to TS pin. Leaving this jumper will leave the TS pin
open.
J6 USB2ANY connector. For connecting the device to the USB2ANY evaluation board to allow computer to
interface with the EVM.
J7 VIO connector to 3p3 V. This is supplied by an external on-board LDO. Will pull the /PG and /INT high when
populated.
J8, J9 Board connector to the other module.
J10 Power Good (PG) LED jumper
J11 VSYS and GND connector.
J13 /CE connector. Connects /CE pin to high or low setting.
J14 Micro USB connector (optional for VIN)
Figure 1-1 shows the various connections and features on the device.
www.ti.com Introduction
SLUUCL3 – APRIL 2022
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BQ25181 EVM User's Guide 3
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