Features: • Low voltage operation and High accuracy. VREF = 1.26 V ± 2.4 %• Adjustable output voltage by two external resistors.VREF VOUT 24 V• Pin compatible to m PC1093.PinoutSpecifications Parameter Symbol Ratings Unit Cathode Voltage VKA 25 V Ca...
UPC1944: Features: • Low voltage operation and High accuracy. VREF = 1.26 V ± 2.4 %• Adjustable output voltage by two external resistors.VREF VOUT 24 V• Pin compatible to m PC1093.PinoutSpe...
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Parameter |
Symbol |
Ratings |
Unit | |
Cathode Voltage |
VKA |
25 |
V | |
Cathode Current |
IK |
50 |
mA | |
Cathode to Anode Reverse Current |
-IK |
-30 |
mA | |
Reference Voltage |
VREF |
7 |
V | |
Reference Input Current |
IREF |
50 |
A | |
Reference to Anode Reverse Current |
-IREF |
-10 |
mA | |
Total Power Dissipation | PC1943T |
PT |
320(1600Note) |
mW |
PC1944T |
320(1600Note) |
mW | ||
PC1944J |
560 |
mW | ||
PC1944GR |
385 |
mW | ||
Operating Ambient Temperature |
TA |
-30 to +85 |
°C | |
Operating Junction Temperature |
TJ |
-30 to +125 |
°C | |
Storage Temperature |
Tstg |
- 65 to + 125 |
°C |
The PC1943,1944 are adjustable precision shunt regulators with guaranteed thermal stability. The output voltage can be set to any value between reference voltage (1.26 V) and 24 V by two external resistors.These ICs can apply to error amplifier of switching regulators.