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UC2843AQ
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UC2843AQ

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Automotive current mode PWM controller
  • Manufacturers:TI
  • Production Batch Number:08+
  • Encapsulation:14SOIC, 8SOIC
  • Stock Status:There is stock
  • Stock Quantity:5000
  • Minimum order quantity: 1
  • Details:Click here to find PDF information on UC2843AQ
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  • Product introduction

The control IC UC2842A/3A/4A/5A family is a pin-compatible family of improved versions of the UC2842/3/4/5-pin. Providing the necessary functions to control current mode switching power supplies, this family has the following improved features. The start-up current is guaranteed to be less than 0.5 mA. The oscillator discharge is trimmed to 8.3 mA. In undervoltage lockout, the output stage can absorb less than 10mA to 1.2 voltstargetV CC at least five

The differences between the members of this family are listed in the table below.

characteristic
  • Performance with extended temperature from -40°C to 125°C
  • Optimize offline and DC-DC converters
  • Low start-up current ("0.5 mA")
  • Side vibration discharge current
  • Automatic feed-forward compensation
  • The pulse is limited by the pulse current
  • Enhanced load response characteristics
  • Undervoltage lockout
  • Double pulse suppression
  • The totem pole outputs a large current
  • Internal fine-tuning bandgap reference
  • 500 kHz operation
  • Low ROError amplifier
parameter
  UC2843AQ
topology improve
Control method Current mode
Duty cycle (max.) (%) 100
Frequency (max) (khertz) 500
On/Off of Undervoltage Lockout Threshold (5) 8.5/7.9
Pins/Packets 14SOIC,8SOIC
(#) Regulated output One
Operating temperature range(°C) -40 to 125

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Model Manufacturers lot number encapsulation illustrate
UC2843AQ TI 08+ 14SOIC, 8SOIC Automotive current mode PWM controller

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