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MFG:NEC  Package Cooled:2000  

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Part Number: UPC1944

 

MFG: NEC

Package Cooled: 2000

 

Description: The PC1943,1944 are adjustable precision shunt regulators with guaranteed th...


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UPC1944 General Description


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.

UPC1944 Maximum Ratings

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
Note with 16 cm2 * 0.7 mm ceramic substrate.

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.

UPC1944 Connection Diagram

UPC1944 Connection Diagram

UPC1944 datasheet

UPC1944
PDF/DataSheet Download

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