National Semiconductor LM5035A PWM Controller with Integrated Half-Bridge SyncFET Drivers Handbook

LM5035A PWM Controller with Integrated Half-Bridge and SyncFET Drivers contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward.


National Semiconductor LM5035A PWM Controller with Integrated Half-Bridge SyncFET Drivers Handbook - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
28
File format
PDF
File size
520 KB
Published
03 May, 2012
Updated
01 October, 2023
Model
LM5035
MD5 checksum
A25448BA01A7840B323F479A07FF0AB2

About this manual

The LM5035A is a half‑bridge PWM controller and gate‑driver that supports voltage‑mode control with line‑feed‑forward and integrated high‑voltage start‑up regulation. It provides 105 V high‑side driver capability and 2 A peak source/sink current on both high‑side and low‑side outputs.

The document includes a general description, feature list, package options, ordering information, pin descriptions, absolute maximum ratings, electrical characteristics, thermal shutdown data, and typical performance curves. It also provides application notes such as UVLO, OVP, soft‑start, and oscillator synchronization details.

What's inside

  • General Description
  • Features
  • Packages
  • Ordering Information
  • Pin Descriptions
  • Application Information
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Thermal Shutdown
  • Typical Performance Characteristics

Specifications

Operating input voltage range13 V to 100 V (transient to 105 V)
VCC output voltage (regulated)7.6 V
High‑side / Low‑side peak driver current2 A peak
Thermal shutdown temperature165 °C
Over‑voltage protection threshold≈1.25 V

Frequently asked questions

What is the maximum supply voltage the LM5035A can handle?

The device operates from 13 V to 100 V, with transient capability up to 105 V.

How much peak current can the high‑side and low‑side gate drivers source or sink?

Both the high‑side and low‑side drivers are capable of 2 A peak current.

Download PDF (520 KB)

More National Semiconductor Manuals


View all National Semiconductor manuals →