SLUS329E – MONTH 2003 – REVISED JANUARY 2008
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ELECTRICAL CHARACTERISTICS
V
CC
= 18 V, R
T
= 8.2 kΩ, C
T
= 1.5 nF, V
PKLMT
= 1 V, V
VRMS
= 1.5 V, I
IAC
= 100
µA,
I
ISENSE
= 0 V, V
CAO
= 3.5 V, V
VAO
= 5 V,
V
VSENSE
= 3 V, –40°C < T
A
< 85°C for the UC2854A and UC2854B, and 0°C < T
A
< 70°C for the UC3854A and UC3854B,
and T
A
= T
J
(unless otherwise noted)
PARAMETER
OVERALL
Supply current, off
Supply current, on
V
CC
turn-on threshold voltage
V
CC
turn-off threshold voltage
V
CC
hysteresis
V
CC
clamp
VOLTAGE AMPLIFIER
Input voltage
V
SENSE
bias current
Open loop gain
V
OH
V
OL
I
SC
High-level output voltage
Low-level output voltage
Output short-circuit current
Gain bandwidth product
CURRENT AMPLIFIER
Input offset voltage
I
SENSE
V
OH
V
OL
I
SC
CMRR
Input bias current
Open loop gain
High-level output voltage
Low-level output voltage
Output short-circuit current
Common mode rejection range
Gain bandwidth product
REFERENCE
Output voltage
Load regulation
Line regulation
I
SC
(1)
Short circuit current
Ensured by design. Not production tested.
I
REF
= 0 mA,
I
REF
= 0 mA
1 mA
≤
I
REF
≤
10 mA
12 V
≤
V
CC
≤
18 V
V
REF
= 0 V
T
A
= 25°C
7.4
7.35
0
0
25
7.5
7.50
8
14
35
7.6
7.65
20
25
60
V
mV
mA
(1)
(1)
TEST CONDITIONS
CAO = 0 V,
V
CC
= V
UVLO
–0.3 V
UCx854A
UCx854B
UCx854A
UCx854B
UCx854A
UCx854B
I
VCC
= I
VCC(on)
+ 5 mA
VAO = 0 V,
MIN
TYP
MAX
UNIT
250
12
15.0
8.0
9
7.8
5
0.10
18
2.9
–500
16.0
10.5
10
10.3
6
0.22
20
3.0
—25
100
6
0.3
1.5
400
18
17.5
11.2
12
11.0
7
0.50
22
3.1
500
µA
mA
V
V
nA
dB
2 V
≤
V
OUT
≤
5 V
I
LOAD
= –500
µA
I
LOAD
= 500
µA
V
OUT
= 0 V
f
IN
= 100 kHz,
V
CM
= 0 V,
V
CM
= 0 V,
V
CM
= 0 V
2 V
≤
V
OUT
= 6 V
I
LOAD
= –500
µA
I
LOAD
= 500
µA
V
OUT
= 0 V
10 mVp-p
T
A
= 25°C
Overtemperature
70
0.5
3.5
V
mA
MHz
1
–4
–5.5
–500
80
110
8
0.3
1.5
–0.3
0.5
3.5
5.0
5
0
0
500
mV
nA
dB
V
mA
V
MHz
f
IN
= 100 kHz,
10 mVp-p
3
4
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