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Introduction

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1 Introduction

1.1 EVM Features

• Evaluation Module for bq24130

• Synchronous Switch-Mode Battery Charge, Host-Controlled Charger

• Integrated 20 V N-MOSFETs

• CELL pin setting up to 12.6 V Battery Voltage; 1, 2, or 3-cell with 4.2 V/cell

• Input Operating Range 5.5 V–17 V

• LED Indication for Charge Status

• Test Points for Key Signals Available for Testing Purpose—Easy Probe Hook-up

• Jumpers Available—Easy to Change Setting

1.2 General Description

The bq24130 is highly integrated host-controlled Li-ion and Li-polymer switch-mode battery charge

controllers with two integrated N-channel power MOSFETs. It offers a constant-frequency synchronous

PWM controller with high accuracy regulation of charge current and voltage. It also provides charge status

monitoring.

The bq24130 automatically enters a low-quiescent current sleep mode when the input voltage falls below

the battery voltage. The bq24130 charges one, two or three cell (selected by CELL pin), supporting up to

4A charge current. The bq24130 is available in a 20-pin, 3.5×4.5 mm

thin QFN package.

For details, see bq24130 data sheet (SLUSAN2).

1.3 I/O Description

Table 1. I/O Description

Jack Description

J1 – VIN Positive input

J1 – PGND Negative input

J2 – VBAT Connected to charger output

J2 – PGND Ground

J3 – CMOD Charge mode selection

J3 – CE Charge enable

J3–TS_EXT Temperature qualification voltage Input

1.4 Control and Key Parameters Setting

Table 2. Control and Key Parameters Setting

Jack Description Factory Setting

JP1 Select external TS input or internal valid TS setting Jumper ON 1-2 (external TS)

IN 1-2 : External TS input

IN 2-3 : Internal valid TS setting

JP2 The pull-up power source supplies the LED when JP5 ON. LED has no Jumper ON (LED power available)

power source when JP5 OFF.

JP3 CELL selection Jumper ON 2-1 (3 CELL)

IN 2-3 : CELL-GND, 1CELL

IN 2-1 : CELL-VREF, 3CELL

IN OPEN: CELL- FLOAT, 2CELL

JP4 Charge mode selection: Jumper ON ( Pre-charge setting )

IN ON: CMOD-GND for pre-charge set by ISET2

IN OFF: CMOD-VREF for fast charge set by ISET1

600-kHz Synchronous Switch-Mode Li-Ion and Li-Polymer Host-Controlled SLVU495B–July 2011–Revised January 2012

Battery Charger With Integrated MOSFETs

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