Low

TEXAS INSTRUMENTS  UC3844N  PWM Controller, 30V-10V supply, 450 kHz, 13.5V/1A out, DIP-8

Product Overview

The UC3844N is a Current Mode PWM Controller optimized for off-line and DC to DC converters. 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 under-voltage lockout featuring start up current less than 1mA, 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 off state.
  • Optimized for off-line and DC to DC converters
  • Low start up current (<1mA)
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Under-voltage lockout with hysteresis
  • Double pulse suppression
  • High current totem pole output
  • Internally trimmed bandgap reference
  • Green product and no Sb/Br

 

Product Information

Input Voltage:
25V
Output Voltage:
13.5V
Output Current:
1A
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
DIP
No. of Pins:
8Pins
Frequency:
450kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualifications Standard:
-
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

Find similar products  grouped by common attribute

Applications

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
-
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Substitutes

Current Mode PWM Controller, 12V-25V supply, 250kHz, 13.5V/200mA out, DIP-8

STMICROELECTRONICS

0

Pricing is unavailable. Please contact customer services.

PWM CONTROLLER, 500KHZ, 10V-30V, PDIP-8

TEXAS INSTRUMENTS

465:  in stock

Price for: Each

1+ $1.57 10+ $1.35 100+ $1.04 500+ $0.915 More pricing

Buy

IC, PWM CONTROLLER, 3845, DIP8

STMICROELECTRONICS

Awaiting Delivery
Contact us for more availability or to purchase on backorder

Price for: Each

1+ $0.836 10+ $0.683 25+ $0.442 50+ $0.328 More pricing

Buy

Current Mode PWM Controller, 12V-25V supply, 30V/200mA out, 100 kHz, DIP-8

TEXAS INSTRUMENTS

123 in stock

Price for: Each

1+ $0.568 Promotional price 10+ $0.568 Promotional price 100+ $0.52 Promotional price 500+ $0.48 Promotional price More pricing

Buy

Associated Products