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Product Variant Information section
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现货数量: 4,800

在途数量:Order inventroy details 12,000
工厂库存:工厂库存: 0
工厂货期: 14 周
起订量: 1
递增量: 1
数量 价格
1 ¥4.4293
250 ¥2.7199
500 ¥2.5644
1,000 ¥2.409
2,000+ ¥2.2924
总价:

¥ 4.43

CNY

所有价格均包含16%增值税。

特性和应用

The UC3842BN is of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5 A.

A precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the offstate.

Features:

  • Trimmed Oscillator for Precise frequency Control
  • Oscillator Frequency Guaranteed at 250 Hz
  • Current Mode Operation to 500 kHz
  • Automatic Feed Forward Copensation
  • Latching PWM for Cycle-by-cycle Current Limiting
  • Internally Trimmed Reference with Undervoltage lockout
  • High Current totem pole output Undervoltage Lockout With Hystersis
  • Low Start-up and Operating Current