text.skipToContent text.skipToNavigation
Product Variant Information section
Product Specification Section
Pricing Section

现货数量: 600

在途数量: 0
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 ¥1.7865
250 ¥1.5147
500 ¥1.4914
2,000 ¥1.4292
3,000+ ¥1.4136
总价:

¥ 1.79

CNY

所有价格均包含13%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