ꢀ ꢁꢂ ꢃ ꢄ ꢅ ꢂ ꢆ ꢀꢁ ꢂꢃ ꢄꢅ ꢇ
SLUS553D − MAY 2003 − REVISED JULY 2005
ELECTRICAL CHARACTERISTICS (CONTINUED)
(−40°C ≤ T ≤ 125°C, 7.0 V
DC
≤ VCC ≤ 28 V , all voltages relative to V ) (unless otherwise specified)
J
DC
ss
Adapter Current-Sense Amplifier
PARAMETER
TEST CONDITIONS
MIN
TYP
130
90
MAX UNIT
175 mA/V
dB
g
m
Transconductance gain
75
CMRR Common-mode rejection ratio
See Note 1
V
Common-mode input voltage range (ACP)
Sink current (COMP)
7.0
0.5
V
V
ICR
CC
2.5
I
COMP = 1 V, (ACP − ACN) = 10 mV
1.5
50
mA
(SINK)
ACP = ACN = 28 V,
VCC = 28 V, ACSET = 2.5 V
Input bias current (ACP, ACN)
40
65
I
IB
µA
Input bias current accuracy ratio
ACP = ACN = 28 V, VCC = 28 V,
−3
0
0
3
(I
, I
)
ACSET = 2.5 V, 0 ≤ T ≤ 125°C
(ACP) (ACN)
J
V
(SET)
AC current programming voltage (ACSET)
AC current set gain
2.5
V
0.65 V ≤ ACSET ≤ 2.5 V, 12 V ≤ ACP ≤ 20 V,
See Note 5
A
V
24.5
25.3
26.5
V/V
ACSET = 1.25 V, T = 25°C, See Note 6
−5%
−6%
5%
6%
J
Total ac current-sense mid-scale accuracy
Total ac current-sense full-scale accuracy
ACSET = 1.25 V, See Note 6
ACSET = 2.5 V, T = 25°C, See Note 6
−3.5%
−4%
3.5%
4%
J
ACSET = 2.5 V, See Note 6
Battery Voltage Error Amplifier
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
g
Transconductance gain
75
135
90
175 mA/V
dB
m
CMRR Common-mode rejection ratio
See Note 1
V
V
BATSET common-mode input voltage range
1
2.5
V
V
ICR
Internal reference override input threshold voltage
0.20
0.25
1.5
0.35
IT
COMP = 1 V,
(BATP − BATSET) = 10 mV,
BATSET = 1.25 V
I
Sink current COMP
0.5
2.5
mA
V
(SINK)
T = 25°C
J
1.190 1.196 1.202
1.183 1.196 1.203
1.178 1.196 1.204
T = 0°C to 85°C
J
V
Error-amplifier precision reference voltage
ACSET
(FB)
T = −40°C to 125°C
J
1
NOTE: 5. Calculation of the ac current: I
+
AC
R
A
SENSE
V
6. Total ac-current set accuracy is based on the measured value of (ACP−ACN) = ∆c, using the measured gain, A
V.
(
)
Dm * Dc
Dc
ACSET
Dc +
, Total accuracy in % +
100, I(ACP) * I(ACN) + 0
A
V
7
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