TEXAS INSTRUMENTS  UC3843AN  CURRENT MODE PWM CONTROLLER, 30V, PDIP-8

TEXAS INSTRUMENTS UC3843AN

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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

Applications

Power Management
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Product Specifications, Documents & More


  • Controller IC Case Style: DIP
  • Digital IC Case Style: DIP
  • Frequency: 450kHz
  • Input Voltage: 25V
  • MSL: -
  • No. of Pins: 8
  • Operating Temperature Max: 70°C
  • Operating Temperature Min: 0°C
  • Output Current: 1A
  • Output Voltage: 15V
  • Packaging: Each
  • Power Dissipation Pd: 1W
  • SVHC: No SVHC (15-Jun-2015)
  • Supply Voltage Max: 25V
  • Supply Voltage Min: 12V
  • Supply Voltage Range: 12V to 25V

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Availability

Availability:  685


  • 685 in stock for same day shipping
 
Check stock and lead times
    More stock available week commencing 2/29/16

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $1.63 $1.63

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Price

Quantity List Price
1 - 9 $1.63
10 - 99 $1.30
100 - 499 $1.00
500 - 999 $0.772
1000 - 2499 $0.719
2500 - 4999 $0.624
5000 - 9999 $0.614
10000+ $0.61
 
 
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Similar Products


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Customer Reviews


TEXAS INSTRUMENTS - UC3843AN - CURRENT MODE PWM CONTROLLER, 30V, PDIP-8 5 5 1 1
Excellent Working excellent according to the manufacture parameters. October 2, 2014
  • 2015-06-11T15:22:07.821-05:00
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Substitutes


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45J2366
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