UC3903N UNITRODE, UC3903N Datasheet - Page 4

• Manufacturer Part Number: UC3903N
• Description: IC, SUPPLY/LINE MONITOR 18mA, 40V 18-DIP
• Manufacturer: UNITRODE

Specifications of UC3903N

• Threshold Voltage: 2.5V
• No. Of Supervisors / Monitors: 4
• Supply Voltage Range: 8V To 40V
• Reset Type: Active-Low
• Supply Current: 18mA
• Delay Time: 30ms
• Digital Ic Case Style: DIP
• No. Of Pins: 18
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UC1903
UC2903
UC3903
SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise stated, these specifications apply for T
UC2903; and 0°C to +70°C for the UC3903; +V
(3) When either the G.P. OP-Amp, or the Sense 4 Inverter, are configured for sensing a negative supply voltage, the divider resistance at
4
FAULT OUTPUTS (OV, UV, AND POWER 0K)
SENSE 4 INVERTER
G.P. OP-AMP
the inverting input should be chosen such that the nominal divider current is ≤1.4mA. With the divider current at or below this level
possible latching of the circuit is avoided. Proper operation for currents at or below 1.4mA is 100% tested in production.
Maximum Current
Saturation Voltage
Leakage Current
Input Offset Voltage
Input Bias Current
Open Loop Gain
PSRR
Unity Gain Frequency
Slew Rate
Short Circuit Current
Input Offset Voltage
Input Bias Voltage
Input Offset Current
Open Loop Gain
CMRR
PSRR
Unity Gain Frequency
Slew Rate
Short Circuit Current
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(3)
PARAMETER
(3)
V
I
V
+VIN = 8 to 40 V
T
V
+V
T
OUT
J
J
OUT
OUT
CM
= 2°C
IN
= 25°C
= 12mA
= 0 to +V
= 8 to 40V
= 2V
= 40 V
Product Folder Link(s):
TEST CONDITIONS
IN
IN
........................................................................................................................................
= 2.0V
= 15V; Sense Inputs (Pins 6–9 and Pin 15) = 2.5V; V
A
= –55°C to +125°C for the UC1903; –40°C to +85°C for the
UC1903 UC2903 UC3903
MIN
UC1903 / UC2903
30
65
65
65
65
65
Copyright © 1999–2008, Texas Instruments Incorporated
TYP
0.25
0.01
100
120
100
100
0.1
0.4
0.1
0.4
70
80
40
40
3
2
1
1
1
MAX
0.40
25
.5
8
2
5
2
MIN
30
65
65
65
65
65
PIN
UC3903
TYP
0.25
0.01
4 = 1.0V, T
100
120
100
100
0.1
0.4
0.1
0.4
70
80
40
40
3
2
1
1
1
MAX
0.40
1.0
25
10
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4
8
4
A
= T
UNIT
MHz
V/ s
MHz
V/ s
mA
mV
mA
mV
mA
dB
dB
dB
dB
dB
V
A
A
A
A
J
.