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ELECTRICAL CHARACTERISTICS (Continued)
(1) Battery readback transfer gain
G
TR
+
V
IBAT
(
SRP * SRN
)
bq24702
bq24703
SLUS553E – MAY 2003 – REVISED OCTOBER 2007
– 40 ° C ≤ T
J
≤ 125 ° C, 7 V
DC
≤ V
CC
≤ 28 V
DC
, all voltages relative to V
SS
(unless otherwise specified)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
BATTERY CURRENT OUTPUT AMPLIFIER
G
(TR)
Transfer gain (SRP – SRN) = 5 mV
(1)
20 V/V
Battery current readback output (SRP – SRN) = 5 mV, SRP = 12 V,
V
I(BAT)
100 mV
voltage (IBAT) V
CC
= 18 V, T
J
= 25 ° C
Line rejection voltage T
J
= 25 ° C 10 mV/V
CM Common-mode input range (SRP) 5 28 V
V
O(IBA
Battery current output voltage
0 2.5 V
T)
range (IBAT)
I
S(O)
Output source current (IBAT) (SRP – SRN) = 100 mV 5 7.1 9.4 mA
(SRP – SRN) = 50 mV, T
J
= 25 ° C
(1)
– 3% 2.4%
(SRP – SRN) = 50 mV,
– 20% 20%
0 ° C ≤ T
J
≤ 85 ° C
Total battery current readback
(SRP – SRN) = 100 mV,
full-scale accuracy
– 1.5% 1.2%
T
J
= 25 ° C
(1)
(SRP – SRN) = 100 mV,
– 6% 8.5%
0 ° C < T
J
< 85 ° C
5-V VOLTAGE REFERENCE
V
ref
Output voltage (VREF) T
J
= 25 ° C 4.985 5 5.013 V
T
J
= 0 ° C to 85 ° C 4.946 5 5.013
T
J
= 40 ° C to 85 ° C 4.946 5 5.03 V
T
J
= – 40 ° C to 125 ° C 4.926 5 5.03 V
Line regulation I
LOAD
= 5 mA 0.1 0.37 mV/V
Load regulation 1 mA ≤ I
LOAD
≤ 5 mA 1.1 4 mV/mA
Short circuit current 8 20 30 mA
5V REF output capacitor Capacitance 2.2 10 μ F
Output capacitor equivalent
ESR 5 1000 m Ω
resistor
HALF SUPPLY REGULATOR
I
(SINK)
= 20 mA, V
CC
= 18 V V
CC
– 11 V
CC
– 10.2 V
CC
– 8.5
V
(HSP)
Voltage regulation V
I
(SINK)
= 1 mA, V
CC
= 7 V 1.5
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