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Manufacturer Part #

UC2844BN

UC2844 Series Current Mode PWM Controller Voltage Regulator - DIP-8

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 2113
Product Specification Section
Technical Attributes
Attributes Table
Package Style:  MDIP-8
Mounting Method: Through Hole
Features & Applications
The UC2844BN 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
Pricing Section
Global Stock:
0
Germany (Online Only):
0
On Order:
0
Factory Stock:Factory Stock:
0
Minimum Order:
4000
Multiple Of:
50
Total
$1,100.00
USD
Quantity
Web Price
50
$0.325
250
$0.285
1,500
$0.275
5,000
$0.265
15,000+
$0.26
Product Variant Information section