Top

Push-Pull FET Driver with Integrated Oscillator and Clock Output

Product Details

Key Features

Parametric specs for Isolated Power Supplies
VIN (V) (min) 4.5
VIN (V) (max) 15
Topology Push-Pull
Application (VIN) Telecom (36-72V)
Switching Frequency (kHz) 1500
Duty Cycle (%) (max) 50
Oper. Temp. (°C) -40 to +125
Package/Pins UMAX/8
Budgetary
Price (See Notes)
4.69
Parametric specs for MOSFET Drivers
No. of Drivers 2
Logic Polarity Mixed
Configuration Clock Output
Low-Side N Drive
Push-Pull
IOUT (A) (peak) 3
Rise/ Fall Time @+25°C (ns) (typ) 10/10 (2000pF)
Package/Pins UMAX/8
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Isolated Power Supplies
VIN (V) (min) 4.5
VIN (V) (max) 15
Topology Push-Pull
Application (VIN) Telecom (36-72V)
Switching Frequency (kHz) 1500
Duty Cycle (%) (max) 50
Oper. Temp. (°C) -40 to +125
Package/Pins UMAX/8
Budgetary
Price (See Notes)
4.69
Parametric specs for MOSFET Drivers
No. of Drivers 2
Logic Polarity Mixed
Configuration Clock Output
Low-Side N Drive
Push-Pull
IOUT (A) (peak) 3
Rise/ Fall Time @+25°C (ns) (typ) 10/10 (2000pF)
Package/Pins UMAX/8

Key Features

  • Current-Fed, Push-Pull Driver Subsystem
  • Programmable, Accurate Internal Oscillator
  • Single +4.5V to +15V Supply Voltage Range
  • Dual ±3A Gate-Drive Outputs
  • 1mA Operating Current at 250kHz with No Capacitive Load
  • Synchronizing Clock Frequency Generation Options
  • Thermally Enhanced 8-Pin µMAX Package
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Current-Fed, High-Efficiency Power-Supply Modules
  • Power-Supply Building Subsystems
  • Push-Pull Driver Subsystems

Description

The MAX5075 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated oscillator for use in telecom module power supplies. The device drives two MOSFETs connected to a center-tapped transformer primary providing secondary-side, isolated, negative or positive voltages. This device features a programmable, accurate, integrated oscillator with a synchronizing clock output that synchronizes an external PWM regulator. A single external resistor programs the internal oscillator frequency from 50kHz to 1.5MHz.

The MAX5075 incorporates a dual MOSFET driver with ±3A peak drive currents and 50% duty cycle. The MOSFET driver generates complementary signals to drive external ground-referenced n-channel MOSFETs.

The MAX5075 is available with a clock output frequency to MOSFET driver frequency ratio of 1x, 2x, and 4x. The MAX5075 is available in a thermally enhanced 8-pin µMAX® package and is specified over the -40°C to +125°C operating temperature range.

Simplified Block Diagram

MAX5075: Typical Operating Circuit MAX5075: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.