Texas Instruments Evaluation Module for BQ24140, 1.5A Dual Input Switchmode Charger with USB-OTG Support BQ24140EVM-003 BQ24140EVM-003 データシート
製品コード
BQ24140EVM-003
Introduction
Test Point
Description
TP4
PMID1
TP5
SW2
TP6
SW1
TP7
CSIN
TP8
VREF
TP9
VREG
TP10
VBAT
TP11
GND - closest to VBAT
TP12
GND - closest to VIN
TP13
GND - closest to VBUS
TP14
SCL
TP15
SDA
1.5
Control and Key Parameters Setting
Jack
Description
Factory Setting
LED 1-2: Connect STAT pin to LED on EVM
JP1
EXT - shunt removed to allow STAT to be connected to external output using pin 2 or
Shunt on LED (1-2)
pin 3
High 1-2: OTG pin high (VREF or battery voltage)
JP2
Low 2-3: OTG pin low (ground)
Shunt on High (1-2)
See data sheet explanation of OTG pin functionality.
High 1-2: SLRST pin high (VREF or battery voltage) - The host can program the Safety
Limit register until the first WRITE action to any other register.
Limit register until the first WRITE action to any other register.
JP3
Shunt on High (1-2)
Low 2-3: SLRST pin low (ground) - All Safety Llimit values are reset to default values
regardless of WRITE actions to the Safety Limit register.
regardless of WRITE actions to the Safety Limit register.
High 1-2: DIS pin high (VREF or battery voltage) - Charge disable control pin is high,
therefore charge is disabled.
therefore charge is disabled.
JP4
Shunt on Low (2-3)
Low 2-3: DIS pin low (ground) - Charge disable control pin is low, therefore charge is
enabled.
enabled.
INT 1-2: Connect LED pin to LED on EVM
JP5
EXT - shunt removed to allow LED to be connected to external output using pin 2 or
Shunt on INT (1-2)
pin 3
1.6
Recommended Operating Conditions
Min
Typ
Max
Unit
Supply voltage, VIN
Input voltage from ac adapter input
4
5
9
V
USB voltage, VBUS
Input voltage from USB input
4
5
6
V
Battery voltage, V
BAT
Regulated voltage at VBAT terminals/headers
3.5
4.44
V
Supply current, I
AC
Maximum input current from ac adapter input
1.8
A
Supply current, I
VBUS
Maximum input current from USB input
1.7
A
Fast-charge current, I
chrg
Battery fast-charge current
0.55
1.55
A
Operating junction temperature range, T
J
0
125
°C
3
SLUU495A – October 2011 – Revised September 2012 bq24140, Fully Integrated, Dual-Input, Switch-Mode, One-Cell, Li-Ion Charger
With Full USB Compliance and USB-OTG Support EVM
Copyright © 2011–2012, Texas Instruments Incorporated