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TEXAS INSTRUMENTS  UC3843AN  Current Mode PWM, 25V-12V supply, 500 kHz, 15V/1A out, DIP-8

TEXAS INSTRUMENTS UC3843AN
Technical Data Sheet (10.06KB) EN See all Technical Docs

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Product Overview

The UC3843AN is a Current Mode PWM Controller optimized for off-line and DC to DC converters. Providing the necessary features to control current mode switched mode power supplies, this controller has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under-voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
  • Optimized for off-line and DC to DC converters
  • Low start up current (<0.5mA)
  • Trimmed oscillator discharge current
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Under-voltage lockout with hysteresis
  • Double pulse suppression
  • High current totem pole output
  • Internally trimmed bandgap reference
  • Low RO error amp
  • Green product and no Sb/Br

 

Product Information

Input Voltage:
25V
Output Voltage:
15V
Output Current:
1A
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
DIP
No. of Pins:
8Pins
Frequency:
450kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualifications Standard:
-
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
-
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

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