UC1825
UC2825
UC3825
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for , RT = 3.65k, CT = 1nF, VCC
= 15V, -55°C<TA<125°C for the UC1825, –40°C<TA<85°C for the UC2825, and 0°C<TA<70°C for the UC3825, TA=TO.
UC1825
UC3825
PARAMETERS
TEST CONDITIONS
UC2825
MIN
TOP MAX
MIN
TOP MAX UNITS
Reference Section
Output Voltage
TO = 25°C, IO = 1mA
5.05
5.10
2
5.15
20
5.00
5.10
2
5.20
20
V
Line Regulation
10V < VCC < 30V
1mA < IO < 10mA
TMIN < TA < TMAX
Line, Load, Temperature
10Hz < f < 10kHz
TJ = 125°C, 1000hrs.
VREF = 0V
mV
mV
Load Regulation
5
20
5
20
Temperature Stability*
Total Output Variation*
Output Noise Voltage*
Long Term Stability*
Short Circuit Current
Oscillator Section
Initial Accuracy*
0.2
0.4
0.2
0.4 mV/°C
5.00
5.20
4.95
5.25
V
50
5
50
5
µV
mV
mA
25
25
-15
-50
-100
-15
-50
-100
TJ = 2°C
360
400
0.2
5
440
2
360
400
0.2
5
440
2
kHz
%
Voltage Stability*
Temperature Stability*
Total Variation*
10V < VCC < 30V
TMIN < TA < TMAX
Line, Temperature
%
340
3.9
460
340
3.9
460
kHz
Oscillator Section (cont.)
Clock Out High
4.5
2.3
2.8
1.0
1.8
4.5
2.3
2.8
1.0
1.8
V
V
V
V
V
Clock Out Low
2.9
3.0
2.9
3.0
Ramp Peak*
2.6
0.7
1.6
2.6
0.7
1.6
Ramp Valley*
1.25
2.0
1.25
2.0
Ramp Valley to Peak*
Error Amplifier Section
Input Offset Voltage
Input Bias Current
Input Offset Current
Open Loop Gain
CMRR
10
3
15
3
mV
µA
µA
dB
0.6
0.1
95
0.6
0.1
95
1
1
1V < VO < 4V
1.5V < VCM < 5.5V
10V < VCC < 30V
VPIN 3 = 1V
60
75
85
1
60
75
85
1
95
95
dB
PSRR
110
2.5
-1.3
4.7
0 .5
5.5
12
110
2.5
-1.3
4.7
0.5
5.5
12
dB
Output Sink Current
Output Source Current
Output High Voltage
Output Low Voltage
Unity Gain Bandwidth*
Slew Rate*
mA
mA
V
VPIN 3 = 4V
-0.5
4.0
0
-0.5
4.0
0
IPIN 3 = -0.5mA
IPIN 3 = 1mA
5.0
1.0
5.0
1.0
V
3
3
MHz
V/µs
6
6
3
TI [ TEXAS INSTRUMENTS ]
