Texas Instruments BQ2463X EVM Manuel d'utilisateur télécharger pdf (Page 3)

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Introduction

Table 1. I/O Description (continued)

Jack Description

J5–GND Ground

JP1–LOW Ground

JP1–TTC Timer capacitor pin

JP1–HI Pull-up voltage source

JP2–HI Pull-up voltage source

JP2–LEDPWR LED Pull-up power line

JP3–VREF IC reference voltage VREF

JP3–VPULLUP Pull-up voltage source

JP3–EXT External voltage supply from J2

JP4–VCC Pull-up voltage source of ACDRV and BATDRV LED logic circuit

JP4–VCOM Q7 and Q11 common source

JP5–HI Pull-up voltage source

JP5–CHGEN Charge enable

1.4 1.4 Controls and Key Parameters Setting

Table 2. Controls and Key Parameters Setting

Jack Description Factory Setting

TTC setting

1-2 : Connect TTC to GROUND (Disable termination and the safety timer)

JP1 Jumper on 2-3 (TTC and VPULLUP)

2-3 : Connect TTC to VPULLUP (Allow termination, but disable the safety time)

2 floating: Allow termination, CTTC sets the safety timer

The pull-up power source supplies the LEDs when on.

JP2 Jumper On

LED has no power source when off.

VPULLUP setting

Jumper On 1-2 (VPULLUP and

JP3 1-2 : Connect VPULLUP to VREF

VREF)

2-3 : Connect VPULLUP to VEXT

JP4 The pull-up voltage source of ACDRV and BATDRV LED logic circuit. Jumper on

CHGEN setting

JP5 Jumper on: CHGEN to VPULLUP Jumper Off

Jumper off: CHGEN is set to low by pull down resistor.

1.5 Recommended Operating Conditions

Table 3. Recommended Operating Conditions

Symbol Description Min Typ Max Unit

24(617)

Supply voltage, V

Input voltage from ac adapter input 5 24 28 V

(610/616/63x)

2.1 (61x) 21 (61x)

Battery voltage, V

BAT

Voltage applied at VBAT terminal of J5 V

1.8 (63x) 18 (63x)

Maximum input current from ac adapter

Supply current, I

0 4.5 A

input

Charge current, I

chrg

Battery charge current 2 3 8 A

Operating junction

0 125 °C

temperature range, T

The bq2461x/bq2463x EVM board requires a regulated supply approximately 0.5 V minimum above the

regulated voltage of the battery pack to a maximum input voltage of 28 VDC.

SLUU396A–January 2010–Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger

1 2 3 4 5 6 7 8 ... 20 21

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Texas Instruments BQ2463X EVM Manuel d'utilisateur Page 3

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