Texas Instruments Evaluation Module for BQ24735, 1-4 Cell Li+ Battery SMBus Charge Controller BQ24735EVM-710 BQ24735EVM-710 Datenbogen
Produktcode
BQ24735EVM-710
Test Summary
Jack
Description
J4– GND
External power supply, negative output
1.4
Control and Key Parameters Setting
Jack
Description
Factory Setting
JMP1
Connect battery voltage to VCC pin
Jumper installed
1.5
Recommended Operating Conditions
Min
Typ
Max
Unit
Notes
Supply voltage, V
IN
Input voltage from ac adapter input
18
19-20
22
V
Battery voltage, V
BAT
Voltage applied at VBAT terminal
0
3-16.8
20
V
Maximum input current from ac adapter
Supply current, I
AC
0
4.5
A
input
Charge current, I
chrg
Battery charge current
1
3
4
A
Operating junction temperature range, T
J
0
125
°C
2
Test Summary
2.1
Definitions
This procedure details how to configure the HPA710 evaluation board. On the test procedure, the
following naming conventions are followed. See the HPA710 schematic for details.
following naming conventions are followed. See the HPA710 schematic for details.
VXXX
External voltage supply name (VADP, VBT, VSBT)
LOADW
External load name (LOADR, LOADI)
V(TPyyy)
Voltage at internal test point TPyyy. For example, V(TP12) means the voltage at TP12.
V(Jxx)
Voltage at jack terminal Jxx
V(TP(XXX))
Voltage at test point XXX. For example, V(ACDET) means the voltage at the test point
which is marked as ACDET.
which is marked as ACDET.
V(XXX, YYY)
Voltage across point XXX and YYY.
I(JXX(YYY))
Current going out from the YYY terminal of jack XX.
Jxx(BBB)
Terminal or pin BBB of jack xx
Jxx ON
Internal jumper Jxx terminals are shorted.
Jxx OFF
Internal jumper Jxx terminals are open.
Jxx (-YY-) ON
Internal jumper Jxx adjacent terminals marked as YY are shorted.
Measure:
→
A,B Check specified parameters A, B. If measured values are not within specified limits,
the unit under test has failed.
Observe
→
A,B
Observe if A,B occur. If they do not occur, the unit under test has failed.
Assembly drawings have location for jumpers, test points, and individual components.
2.2
Equipment
Power Supplies
Power Supply #1 (PS#1): a power supply capable of supplying 20 V at 5 A is required.
Power Supply #2 (PS#2): a power supply capable of supplying 5 V at 1 A is required.
Power Supply #3 (PS#3): a power supply capable of supplying 20 V at 5 A is required.
Power Supply #2 (PS#2): a power supply capable of supplying 5 V at 1 A is required.
Power Supply #3 (PS#3): a power supply capable of supplying 20 V at 5 A is required.
3
SLUU507A – June 2011 – Revised September 2011
bq24735/725A Battery Charger Evaluation Module
Copyright © 2011, Texas Instruments Incorporated