SLUUCS1 October   2023 BQ25185

 

  1.   1
  2.   Description
  3.   Features
  4. 1Evaluation Model Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  5. 2Hardware
    1. 2.1 EVM Setup
    2. 2.2 EVM Connectors and Test Points
  6. 3Testing Procedures
    1. 3.1 Equipment
    2. 3.2 Charge Mode
    3. 3.3 Factory Mode Entry and Exit
  7. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 Layout
    3. 4.3 Bill of Materials
  8. 5Additional Information
    1. 5.1 Trademarks
  9. 6Revision History

2.1 EVM Setup

Table 2-1 lists the jumper connections and the jumper description.

Table 2-1 Jumper Descriptions

Jumper Name

Description

Factory Setting

J1

VIN and GND connector. Input voltage from external power supply. Recommended voltage is 5 V and OVP is 18.5 V. Max input voltage is 25 V while in OVP.

Not installed

J2

VBAT and GND connector. Battery connection using jumper for easy access.

Not installed

J3

VSYS and GND connector.

Not installed

J4

/CE connector. Connects /CE pin to higer if populated. Leave floating for low.

Installed

J5

Battery pack connector. Battery connection using JST header.

N/A

J6

Micro-USB connector (optional for VIN)

N/A

J7

TS potentiometer connector. Connects TS potentiometer to TS pin. Leaving this jumper will leave the TS pin open.

Installed

J8

SYS to LDO connection. Populating this jumper will power the LDO by the BQ25185 SYS pin

Not installed

J9

STAT1 and STAT2 pull-up connection. Populating this jumper will pull STAT1 and STAT2 to an on-board 3V3 LDO.

Installed

J12

Connects the ISET pin. Connect to FXD setting for a 750 Ω connection. Connect to ADJ to connect the ISET pin to the ISET potentiometer R14

FXD

Figure 2-1 shows the various connections and features on the device.

GUID-20230720-SS0I-TDQD-3MGM-1CCVWBJKKZMX-low.svgFigure 2-1 EVM Connections

Table 2-2 lists the recommended operating conditions.

Table 2-2 Recommended Operating Conditions

MIN

NOM

MAX

UNIT

VBAT

Battery voltage range

2.2

4.6

V

VIN

Input voltage range

3.3

18

V

IIN

Input current range (IN to SYS)

1.1

A

IBAT

Battery discharge current (BAT to SYS)

3.125

A

TA

Operating ambient temperature range

-40

85

°C

TJ

Operating junction temperature range

-40

125

°C