Datasheet

bq28400
SLUSA61A –OCTOBER 2010–REVISED DECEMBER 2010 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Typical values stated where T
A
= 25ºC and V
BAT
= V
PACK
= 7.2 V, Min/Max values stated where T
A
= –20ºC to 85ºC and V
BAT
= V
PACK
= 3.8 V to 18.75 V over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITION
(1)
MIN TYP MAX UNIT
Flash programming 20k Cycles
write-cycles
t
ROWPROG
Row programming 2 ms
time
t
MASSERASE
Mass-erase time 250
t
PAGEERASE
Page-erase time 25
I
CC(PROG)
Flash-write supply 4 6 mA
current
I
CC(ERASE)
Flash-erase supply T
A
= –40°C to 0°C 8 22
current
T
A
= 0°C to 85°C 3 15
RAM Backup
V
RBI
> V
(RBI)MIN
, V
REG27
< V
REG27IT–
,
20 1500
T
A
= 70°C to 110°C
RBI data-retention
I
(RBI)
nA
input current
V
RBI
> V
(RBI)MIN
, V
REG27
< V
REG27IT–
,
500
T
A
= –20°C to 70°C
V
(RBI)
RBI data-retention voltage
(2)
1 V
Internal LDO
V
REG
Regulator output I
REG27
= 10 mA, T
A
= –20°C to 85°C 2.5 2.7 2.75 V
voltage
PACK and BAT ≤ 4.5 V, T
A
= –20°C to 110°C 3
Regulator Output 4.5 V < PACK and BAT ≤ 6.8 V 10
I
REG
mA
Current
6.8 V < PACK and BAT ≤ 18.7 5 V,
16
T
A
= –20°C to 70°C
Regulator output
ΔV
(REGTEMP)
change with I
REG
= 10 mA, T
A
= –20°C to 85°C ±0. 5%
temperature
ΔV
(REGLINE)
Line regulation I
REG
= 10 mA ±2 ±4 mV
ΔV
(REGLOAD)
Load regulation I
REG
= 0.2 to 10 mA ±20 ±40 mV
I
(REGMAX)
Current limit 25 50 mA
(2) Specified by design. Not production tested.
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