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UC2843AD8TR +BOM

30-V, 1-A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 40°C to 85°C

UC2843AD8TR General Description

Moreover, the UC2843AD8TR boasts a range of features that set it apart from other PWM controllers on the market. From its precision voltage reference and error amplifier to its adjustable peak current limit and programmable soft-start function, this controller offers a comprehensive set of tools for optimizing power supply performance. With overcurrent protection and low startup current, it is well-suited for low-power applications where efficiency is key

Key Features

  • Optimized for Off-Line and DC-DC Converters
  • Low Start-Up Current (< 0.5 mA)
  • Trimmed Oscillator Discharge Current
  • Automatic Feedforward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Undervoltage Lockout With Hysteresis
  • Double Pulse Suppression
  • High-Current Totem Pole Output
  • Internally-Trimmed Bandgap Reference
  • Up to 500-kHz Operation
  • Create a Custom Design Using the UCx84xA With the WEBENCH Power Designer

Specifications

Topology Boost, Buck, Buck boost, Flyback, Forward Control mode Peak current mode
Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 500
Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology UVLO thresholds on/off (V) 8.4/7.6
Operating temperature range (°C) -40 to 85 Rating Catalog
Gate drive (typ) (A) 1 Vin (max) (V) 28

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In Stock: 5,935

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $0.753 $0.75
10+ $0.632 $6.32
30+ $0.572 $17.16
100+ $0.511 $51.10
500+ $0.442 $221.00
1000+ $0.423 $423.00

The prices below are for reference only.