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UCC2897APWR +BOM

110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection

UCC2897APWR General Description

Furthermore, the UCC2897A offers second-level hiccup-mode current-sense threshold, bi-directional synchronization, and input-overvoltage protection functionalities for added safety and protection. Available in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages, this controller is a comprehensive solution for demanding power conversion applications

Key Features

  • Low-output jitter
  • Soft-stop shutdown of MAIN and AUX
  • 110-V input startup function
  • Ideal for active-clamp, reset-forward, flyback and synchronous rectifier uses
  • Provides complementary auxiliary driver with programmable dead time (Turn-On Delay) between AUX and MAIN switches
  • Peak current-mode control with 0.5-V cycle-by-cycle current limiting
  • TrueDrive™ 2-A Sink, 2-A source outputs
  • Trimmed internal-bandgap reference for accurate line UV and line OV threshold
  • Programmable slope compensation
  • High-performance 1-MHz synchronizable oscillator with internal timing capacitor
  • Precise programmable maximum duty cycle
  • PB-free lead finish package

Specifications

Topology Active-clamp forward Control mode Current
Duty cycle (max) (%) 74 Switching frequency (max) (kHz) 1000
Features High-voltage startup, Input line monitor, Programmable slope compensation, Soft start, Soft switching, Supports PFET clamp UVLO thresholds on/off (V) 12.7/8
Operating temperature range (°C) -40 to 125 Rating Catalog
Gate drive (typ) (A) 2 Vin (max) (V) 16

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In Stock: 6,057

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $1.585 $1.58
10+ $1.457 $14.57
30+ $1.376 $41.28
100+ $1.154 $115.40
500+ $1.117 $558.50
1000+ $1.100 $1,100.00

The prices below are for reference only.