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LINEAR TECHNOLOGY  LT1244CS8#PBF  PWM Controller, 25V-12V supply, 500 kHz, 5V/200mA out, SOIC-8

LINEAR TECHNOLOGY LT1244CS8#PBF
Manufacturer Part No:
LT1244CS8#PBF
Order Code:
1273697
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT1244CS8#PBF is a high speed current-mode Pulse Width Modulator, an improved plug compatible versions of the industry standard UC1842 series. It has both improved speed and lower quiescent current. The LT1241 series is optimized for off-line and DC/DC converter applications. It contains a temperature-compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output stage ideally suited to driving power MOSFETs. Start-up current has been reduced to less than 250µA. Cross-conduction current spikes in the output stage have been eliminated, making 500kHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. Trims have been added to the oscillator circuit for both frequency and sink current and both of these parameters are tightly specified. The output stage is clamped to a maximum VOUT of 18V in the on-state.
  • <250µA Low start-up current
  • 50ns Current sense delay
  • Undervoltage lockout with hysteresis
  • No cross-conduction current
  • Trimmed bandgap reference
  • 1A Totem pole output
  • Trimmed oscillator frequency and sink current
  • Active pull-down on reference and output during undervoltage lockout
  • 18V High level output clamp
  • Current sense leading edge blanking

Product Information

Input Voltage:
15V
Output Voltage:
5V
Output Current:
200mA
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
SOIC
No. of Pins:
8Pins
Frequency:
500kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
100°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000175

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