Low

LT1952IGN-1#PBF - 

Single Switch Synchronous Forward Controller, 200 kHz, SSOP-16

LINEAR TECHNOLOGY LT1952IGN-1#PBF

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Manufacturer Part No:
LT1952IGN-1#PBF
Order Code:
2254877
Technical Datasheet:
(EN)
See all Technical Docs

Product Information

:
SSOP
:
-40°C
:
-
:
125°C
:
16Pins
:
200kHz
:
-
:
25V
:
-
:
-
:
-
:
Each
:
-
:
MSL 1 - Unlimited
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Product Overview

The LT1952IGN-1#PBF is a single Switch PWM Controller optimized to control the forward converter topology, using one primary MOSFET. It provides synchronous rectifier control, resulting in extremely high efficiency. A programmable volt-second clamp provides a safeguard for transformer reset that prevents saturation. This allows a single MOSFET on the primary side to reliably run at greater than 50% duty cycle for high MOSFET, transformer and rectifier utilization. The devices include soft-start for controlled exit from shutdown and under voltage lockout. A precision 107mV current limit threshold, independent of duty cycle, combines with soft start to provide hiccup short circuit protection. The LT1952 is optimized for micro-power bootstrap startup from high input voltages. The LT1952-1 allows startup from lower input voltages. Programmable slope compensation and leading edge blanking allow optimization of loop bandwidth with a wide range of inductors and MOSFETs.
  • Synchronous rectifier control for high efficiency
  • Programmable volt-second clamp
  • True PWM soft-start
  • Low stress short-circuit protection
  • Adjustable delay for synchronous timing
  • Accurate shutdown threshold with programmable hysteresis
  • Programmable slope compensation
  • Programmable leading edge blanking
  • Current mode control

Applications

Power Management, Industrial, Communications & Networking

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