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Manufacturer Part #

UC3844BD1013TR

UC3844B Series 250 kHz High Performance Current Mode PWM Controller - SOIC-8

Product Specification Section
Technical Attributes
Attributes Table
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications

The UC3844BD1013TR is a high performance current mode PWM controller.

This device 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 mA, 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 fre-quency control
  • Oscillator frequency guaranteed at 250khz
  • Current mode operation to 500khz
  • Automatic feed forward compensation
  • Latching pwm for cycle-by-cycle current limiting
  • Internally trimmed reference with undervoltage lockout
  • High current totem pole output
  • Undervoltage lockout with hysteresis
  • Low start-up and operating current
Pricing Section
Stock:
2,500
Minimum Order:
2,500
Multiple Of:
2,500
On Order:
0
Factory Stock:Factory Stock:
0
Total
$687.50
USD
Quantity
Web Price
2,500
$0.275
5,000
$0.275
10,000
$0.27
12,500+
$0.27