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LM5045MH/NOPB

Controller Full Bridge, 100V-14V supply, 2 MHz, TSSOP-28

LM5045MH/NOPB - Controller Full Bridge, 100V-14V supply, 2 MHz, TSSOP-28

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

Manufacturer Part No:
LM5045MH/NOPB
Order Code:
3008534

Product Overview

The LM5045MH/NOPB is a Pulse Width Modulated (PWM) Controller contains all of the features necessary to implement full-bridge topology power converters using either current-mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100V. This highly integrated controller-driver provides dual 2A high-side and low-side gate drivers for the four external bridge MOSFETs plus control signals for the secondary-side synchronous rectifier MOSFETs. External resistors program the leading and trailing edge dead-time between the main and synchronous rectifier control signals. Intelligent start-up of the synchronous rectifiers allows monotonic turn-on of the power converter even with pre-bias load conditions. Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start and a 2MHz capable oscillator.
  • Highest integration controller for small form
  • Factor, high-density power converters
  • High-voltage start-up regulator
  • Intelligent sync rectifier start-up allows linear
  • Turn-on into pre-biased loads
  • Synchronous rectifiers disabled in UVLO mode and hiccup mode
  • Two independent, programmable synchronous rectifiers
  • Dead-time adjustments
  • Four high-current 2A Bridge gate drivers
  • Wide-bandwidth optocoupler interface
  • Dual-mode overcurrent protection
  • Programmable line UVLO and OVP
  • Green product and no Sb/Br

Applications

Power Management, Consumer Electronics, Aerospace, Defence, Military, Communications & Networking, Automotive

Warnings

Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

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:
100V

:
-

:
-

:
14V

:
100V

:
TSSOP

:
28Pins

:
2MHz

:
-40°C

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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