Performance Specification Summary
1-3
Introduction
Table 12.Performance Specification Summary (Two Cell)
Specification Test Conditions Min Typ Max Units
Input dc voltage, VDC 9.1 9.5 V
Batterycharge current ICHG
J4 shorted, J3 open 0.4 0.5 0.6
A
B
attery c
h
arge current,
I
CHG J3 shorted, J4 open 0.9 1 1.1
A
Batteryvoltage regulation VREG
J6 set to VCC 8.35 8.40 8.45
V
B
attery vo
l
tage regu
l
at
i
on,
V
REG J6 set to GND 8.15 8.20 8.25
V
Thermfault
High, TBATMAX J2 set to Therm 43 48 53 °
C
Th
erm
f
au
l
tLow, TBATMIN J2 set to Therm 0 5 10 °
C
APG (user defined, see data sheet) J2 set to APG
Power dissipation, PD(VI-VO)× Iload 2.3 W
VI, for a 2-cell, should not exceed 9.1 VDC for the 1-A charge rate and 10.6 V for the 0.5-A charge rate. (VI is the input voltage
to the bq2400x IC, pins 2 and 3. The power supply source voltage, at J1, is 0.1 V larger than VI because of the regulated voltage
drop across the current sense resistor, during constant current regulation.)
If J2 is set to APG, then the chip will be disabled when the input is outside of this range: 4.02 V±0.07 V and 10.76 V ±0.09 V.