UC1901
UC2901
UC3901
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for V
IN
= 10V, R
T
= 10kΩ, C
T
=
820pF, T
A
= T
J.
PARAMETER
Reference Section
Output Voltage
TEST CONDITIONS
UC1901/UC2901
MIN
TYP MAX
1.485
1.470
1.5
1.5
2
4
–35
1
–1
0.1
60
80
100
0.7
150
–3
1
0.3
12
±
2.8
700
–35
25
150
.15
5
0.5
1.6
±
135
8
±
150
15
.05
5
3.9
3.9
–2
±
165
0.45
1
8
4.5
4.5
–30
±
130
8
±
150
15
.05
5
3.9
3.9
–2
1.515
1.530
10
10
–55
4
–3
1
40
60
80
0.4
90
–2
UC3901
UNITS
MIN
TYP
MAX
1.47
1.455
1.5
1.5
2
4
–35
1
–1
0.1
60
80
100
0.7
150
–3
1
0.3
12
±
2.8
700
–35
25
150
.15
5
0.5
1.6
±
170
0.45
5
10
4.5
4.5
–30
1.53
1.545
15
15
–55
8
–6
2
V
mV
mV
mV
mV
µA
µA
dB
dB
dB
V
µA
mA
MHz
V/µS
dB
V
µA
mA
MHz
kHz
kHz
%/V
MHz
V
V
mV
V
mA
µA
mA
V
V
mV
T
J
= 25°C
T
MIN
≤
T
J
≤
T
MAX
Line Regulation
V
IN
= 4.5 to 35V
Load Regulation
I
OUT
= 0 to 5mA
Short Circuit Current
T
J
= 25°C
Error Amplifier Section
(To Compensation Terminal)
Input Offset Voltage
V
CM
= 1.5V
Input Bias Current
V
CM
= 1.5V
Input Offset Current
V
CM
= 1.5V
Small Signal Open Loop Gain
CMRR
V
CM
= 0.5 to 7.5V
PSRR
V
IN
= 2 to 25V
Output Swing,
∆
V
O
Maximum Sink Current
Maximum Source Current
Gain Band Width Product
Slew Rate
Modulators/Drivers Section
(From Compensation Terminal)
Voltage Gain
Output Swing
Driver Sink Current
Driver Source Current
Gain Band Width Product
Oscillator Section
Initial Accuracy
T
J
= 25°C
T
MIN
≤
T
J
≤
T
MAX
Line Sensitivity
V
IN
= 5 to 35V
Maximum Frequency
R
T
= 10k, C
T
= 10pF
Ext. Clock Low Threshold
Pin 1 (C
T
) = V
IN
Ext. Clock High Threshold
Pin 1 (C
T
) = V
IN
Status Indicator Section
Input Voltage Window
@ E/A Inputs, V
CM
= 1.5V
Saturation Voltage
E/A
∆
Input = 0V, I
SINK
= 1.6mA
Max. Output Current
Pin 13 = 3V, E/A
∆
Input = 0.0V
Leakage Current
Pin 13 = 40V, E/A
∆Input
= 0.2V
Supply Current
V
IN
= 35V
UVLO Section
Drivers Enabled Threshold
At Input Supply V
IN
Status Output Enabled
At Input Supply V
IN
Threshold
Change in Reference Output
When V
IN
Reaches UVLO
Threshold
40
60
80
0.4
90
–2
11
±
1.6
500
–15
13
10
±
1.6
500
–15
14
140
130
160
170
.35
130
120
170
180
.60
3
TI [ TEXAS INSTRUMENTS ]
