UC1620
UC3620
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Output Current, Source or Sink
CONNECTION DIAGRAMS
SP Hermetic Power DIL
Non-Repetitive (t = 100µsec), lo . . . . . . . . . . . . . . . . . . . . 3A
Repetitive (80% on - 20% off; tON = 10ms) . . . . . . . . . . 2.5A
DC Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +Vcc
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +Vcc
Total Power Dissipation (at TCASE = 75° C)
for SP Package (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . . 15W
Storage Temperature . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Operating Junction Temperature . . . . . . . . . . . -55°C to +150°C
Note 1: All voltages are with respect to ground. Currents are
positive into, negative out of the specified terminal.
Note 2: Consult Packaging Section of Databook for thermal
limitations and considerations of package.
Unless otherwise stated, these specifications apply for TA = 0°C to 70°C for 3620; TA
= 55°C to +125°C for UC1620; VCC = 20V, RT = 20V, RT = 10k, CT = -2.2nF. TA=TJ.
ELECTRICAL CHARACTERISTICS:
PARAMETER
TEST CONDITIONS
UC3620
TYP
UC1620
TYP
UNIT
MIN
MAX
MIN
MAX
Error Amplifier Section
Input Offset Voltage
Input Bias Current
1.5
-.25
15
10
-2.0
250
1.5
-.25
15
10
-2.0
250
mV
µA
Input Offset Current
nA
Common Mode Range
Open Loop Gain
Vcc = 8V to 40V
∆VCOMP = 1V to 4V
0
VIN-2
0
VIN-2
V
80
100
0.8
2
75
100
0.8
2
dB
Unity Gain Bandwidth
Output Sink Current
Output Source Current
Current Sense Section
Input Bias Current
TJ = 25°C, Note 2
VCOMP = 1V
MHz
mA
mA
VCOMP = 4V
8
8
-2.0
0.5
0.2
1.0
-5
-2.0
0.5
0.2
1.0
-5
µA
V
Internal Clamp
.425
.180
.8
.575
.220
1.2
.405
.170
.75
.595
.230
1.25
Divider Gain
V/V
V
Internal Offset Voltage
Timing Section
Output Off Time
18
20
5.0
2.0
22
17
20
5.0
2.0
23
µs
V
Upper Mono Threshold
Lower Mono Threshold
Decoder Section
V
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
Output Section
2.2
-10
2.5
-10
V
V
0.8
10
0.8
10
µA
µA
Output Leakage Current
VF1 Schottky Diode
VF1 Substrate Diode
Total Output Voltage Drop
VCC = 40V
IO = 2A
500
2.0
3.0
3.6
1500
2.0
µA
V
1.5
2.2
3.0
1.5
2.2
3.0
IO = 2A
3.0
V
IO = 2A, Note 3
3.6
V
2