ISL8844A

High Performance Industry Standard Single-Ended Current Mode PWM Controller

Product Status: 量産中

OVERVIEW

The ISL884xA is a high performance drop-in replacement for the popular 28C4x and 18C4x PWM controllers suitable for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Its fast signal propagation and output switching characteristics make this an ideal product for existing and new designs.

Features include 30V operation, low operating current, 90µA start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability with 20ns rise and fall times.

KEY FEATURES

  • 1A MOSFET gate driver
  • 90µA start-up current, 125µA maximum
  • 35ns propagation delay current sense to output
  • Fast transient response with peak current mode control
  • 30V operation
  • Adjustable switching frequency to 2MHz
  • 20ns rise and fall times with 1nF output load
  • Trimmed timing capacitor discharge current for accurate deadtime/maximum duty cycle control
  • 1.5MHz bandwidth error amplifier
  • Tight tolerance voltage reference over line, load and temperature
  • ±3% current limit threshold
  • Pb-free plus anneal available and ELV, WEEE, RoHS Compliant

PARAMETRICS

Parameters
ISL8844A
Basic Information
Production Status
量産中
トポロジ
Single-Ended
トポロジ特性
Flyback
制御モード
Peak Current Mode
UVLO立ち上がり (V)
14.4
UVLO立ち下がり (V)
8.8
VBIAS (V) (max)
30
無負荷動作電流
2.9 mA
PWM出力数
1
FETドライバ最大出力電流
1 A
最大デューティサイクル (%)
50
認定レベル
Standard
CANサンプル
YES
温度範囲
-55 to +125

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