1.5
Recommended Operating Conditions
2
Test Summary
2.1
Definitions
Test Summary
www.ti.com
Jack
Description
Factory Setting
J20
Disable charge process when on for bq24740, enable charge process when on for
Jumper On for bq24740, Off for
bq24741
bq24741
J21
VDAC voltage source setting
Jumper on 1-2 (VREF and
VDAC)
1-2 : Connect VREF to VDAC
2-3 : Connect external voltage source to VDAC
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNIT
Notes
V
IN
Supply voltage
Input voltage from ac adapter input
18
19
22
V
V
BAT
Battery voltage
Voltage applied at VBAT terminal of J8
6
7–16.8
20
V
Maximum input current from ac adapter
I
AC
Supply current
0
4.5
A
input
I
chrg
Charge current
Battery charge current
2
3 or 4
6
A
Operating junction
T
J
0
125
°
C
temperature range
This procedure details how to configure the HPA206 evaluation board. On the test procedure the following
naming conventions are followed. See the HPA206 schematic for details.
VXXX :
External voltage supply name (VADP, VBT, VSBT)
LOADW:
External load name (LOADR, LOADI)
V(TPyyy):
Voltage at HPA206 internal test point TPyyy. For example, V(TP12) means the voltage
at TP12.
V(Jxx):
Voltage at HPA206 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
.
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 :
HPA206 internal jumper Jxx terminals are shorted
Jxx OFF:
HPA206 internal jumper Jxx terminals are open
Jxx (-YY-) ON:
HPA206 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
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.
bq24740/1EVM (HPA206) For Multicell Synchronous Notebook Charger
4
SLUU284A – June 2007 – Revised October 2008
