Datasheet

bq27541-G1
SLUSAL6C –NOVEMBER 2011–REVISED OCTOBER 2012 www.ti.com
RECOMMENDED OPERATING CONDITIONS (continued)
T
A
= -40°C to 85°C; typical values at T
A
= 25°C and V
(REGIN)
= V
BAT
= 3.6 V (unless otherwise noted)
MIN TYP MAX UNIT
V
(A1)
Input voltage range (TS) V
SS
–0.125 2 V
V
(A2)
Input voltage range (BAT) V
SS
–0.125 5 V
V
(A3)
Input voltage range (SRP, SRN) V
SS
–0.125 0.125 V
I
lkg
Input leakage current (I/O pins) 0.3 μA
t
PUCD
Power-up communication delay 250 ms
POWER-ON RESET
T
A
= –40°C to 85°C, C
(REG)
= 0.47μF, 2.45 V < V
(REGIN)
= V
BAT
< 5.5 V; typical values at T
A
= 25°C and V
(REGIN)
= V
BAT
= 3.6 V
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IT+
Positive-going battery voltage input at V
CC
2.05 2.20 2.31 V
V
HYS
Power-on reset hysteresis 45 115 185 mV
2.5 V LDO REGULATOR
(1)
T
A
= –40°C to 85°C, C
(REG)
= 0.47 μF, 2.45 V < V
(REGIN)
= V
BAT
< 5.5 V; typical values at T
A
= 25°C and V
(REGIN)
= V
BAT
= 3.6 V
(unless otherwise noted)
PARAMETER TEST CONDITION MIN TYP MAX UNIT
2.7 V ≤ V
(REGIN)
≤ 5.5 V,
2.4 2.5 2.6 V
I
OUT
≤ 16mA
V
O
Regulator output voltage, REG25 T
A
= –40°C to 85°C
2.45 V ≤ V
(REGIN)
< 2.7 V (low
2.4 V
battery), I
OUT
≤ 3mA
2.7 V, I
OUT
≤ 16 mA 280
V
DO
Regulator dropout voltage T
A
= –40°C to 85°C mV
2.45 V, I
OUT
≤ 3 mA 50
V
(REGIN)
= 3.6 V,
Regulator output change with
ΔV
(REGTEMP)
T
A
= –40°C to 85°C 0.3%
temperature
I
OUT
= 16 mA
ΔV
(REGLINE)
Line regulation 2.7 V ≤ V
(REGIN)
≤ 5.5 V, I
OUT
= 16 mA 11 25 mV
0.2 mA ≤ I
OUT
≤ 3 mA, V
(REGIN)
= 2.45 V 34 40
ΔV
(REGLOAD)
Load regulation mV
3 mA ≤ I
OUT
≤ 16 mA, V
(REGIN)
= 2.7 V 31
I
OS
(2)
Short circuit current limit V
(REG25)
= 0 V T
A
= –40°C to 85°C 250 mA
(1) LDO output current, I
OUT
, is the total load current. LDO regulator should be used to power internal fuel gauge only.
(2) Specified by design. Not production tested.
INTERNAL TEMPERATURE SENSOR CHARACTERISTICS
T
A
= –40°C to 85°C, C
(REG)
= 0.47μF, 2.45 V < V
(REGIN)
= V
BAT
< 5.5 V; typical values at T
A
= 25°C and V
(REGIN)
= V
BAT
= 3.6 V
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
G
(TEMP)
Temperature sensor voltage gain –2.0 mV/°C
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