BQ24702_16 Datasheet, PDF (4/37 Pages) Texas Instruments – MULTICHEMISTRY BATTERY CHARGER CONTROLLER

bq24702
bq24703
SLUS553E – MAY 2003 – REVISED OCTOBER 2007
RECOMMENDED OPERATING CONDITIONS
(T_A = T_OPR) all voltages relative to V_SS
Supply voltage, (VCC)
Analog and PWM operation
Selector operation
Negative ac current sense, (ACN)
Positive ac current sense, (ACP)
Negative battery current sense, (SRN)
Positive battery current sense, (SRP)
AC or adapter power detection (ACDET)
AC power indicator (ACPRES)
AC adapter power select (ACSEL)
Depleted battery level (BATDEP)
Battery charge current programming voltage (SRSET)
Charge enable (ENABLE)
External override to an internal 0.5% precision reference (BATSET)
Inverting input to the PWM comparator (COMP)
Battery charge regulation voltage measurement input to the battery—voltage g_m amplifier (BATP)
Battery current differential amplifier output (IBAT)
System load voltage input pin (VS)
Depleted battery alarm output (ALARM)
Gate drive output (PWM)
Battery power source select output (BATDRV)
AC or adapter power source selection output (ACDRV)
ACSET
Operating free-air temperature, T_A
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MIN
7
4.5
7
7
5
5
0
0
0
0
0
0
0
0
0
0
0
0
VHSP
0
VHSP
0
-40
MAX
28
28
28
28
28
28
5
5
5
5
2.5
5
2.5
5
5
5
2.5
5
VCC
28
VCC
2.5
85
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
°C
4
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