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MAX5069

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers

2.5MHz, Universal-Input, Dual-Output PWM Controller with Precision-Programmable Switching Frequency and Start/Stop Voltage

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX5069 is a high-frequency, current-mode, pulse-width modulation (PWM) controller (with dual MOSFET drivers) that integrates all the building blocks necessary for implementing AC-DC or DC-DC fixed-frequency power supplies. Isolated or nonisolated pushpull and half/full-bridge power supplies are easily constructed using either primary- or secondary-side regulation. Current-mode control with leading-edge blanking simplifies control-loop design and a programmable internal slope-compensation circuit stabilizes the current loop when operating at duty cycles above 50%.

An input undervoltage lockout (UVLO) programs the input-supply startup voltage and ensures proper operation during brownout conditions.

A single external resistor programs the oscillator frequency from 50kHz to 2.5MHz. The MAX5069A/D provide a SYNC input for synchronization to an external clock. The maximum FET-driver duty cycle for the MAX5069 is 50%. Programmable dead time allows additional flexibility in optimizing magnetic design and overcoming parasitic effects. Programmable hiccup current limit provides additional protection under severe faults.

The MAX5069 is specified over the -40°C to +125°C automotive temperature range and is available in a 16-pin thermally enhanced TSSOP-EP package. Refer to the MAX5068 data sheet for single FET-driver applications.

Warning: The MAX5069 is designed to work with high voltages. Exercise caution.

Data Sheet

Download	Rev 2	(PDF, 244kB)
E-Mail

An evaluation kit is available: MAX5069AEVKIT

Key Features

Current-Mode Control with 47µA (typ) Startup Current
Oscillator Frequency Programmable to 2.5MHz
Resistor-Programmable ±4.5% Accurate Switching Frequency
Dual Gate-Drive Output for Half/Full-Bridge or Push-Pull Applications
Rectified 85VAC to 265VAC, or 36VDC to 72VDC Input (MAX5069A/B)
Input Directly Driven from 10.8V to 24V (MAX5069C/D/E)
Programmable Dead Time and Slope Compensation
Programmable Startup Voltage (UVLO)
Programmable UVLO Hysteresis (MAX5069B/C/E)
Frequency Synchronization Input (MAX5069A/D)
-40°C to +125°C Automotive Temperature Range
16-Pin Thermally Enhanced TSSOP-EP Package

Applications/Uses

Industrial Power Conversion
Isolated Telecom Power Supplies
Networking System Power Supplies
Server Power Supplies
Universal-Input AC Power Supplies

Key Specifications:

Isolated Power Supplies

Part Number

V_IN
(V)

Topology

Cntrl. Loop

Feedback

Freq.
(kHz)

Duty Cycle
(%)

I_STARTUP
(mA)

I_CC
(mA)

Gate Drive Current
(A)

Oper. Temp.
(°C)

Budgetary Price

min

max

min

max

See Notes

MAX5069

10.8

Full-Bridge

Half-Bridge

Push-Pull

Current Mode

Linear

Opto

2500

0.09

-40 to +125

$3.49 @1k

See All Isolated Power Supplies (20)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Functional Diagram

Application Notes

Tutorial 4701

Introduction to Programmable Logic Controllers (PLCs) and the Operational Function of Main System Modules

Reliability Reports

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Software/Models

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Ordering Information

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Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5069AAUE			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5069AAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5069AAUE+T			Active	TSSOP;16 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5069AAUE-T			Active	TSSOP;16 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5069BAUE			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5069BAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5069BAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5069BAUE-T			Active	TSSOP;16 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5069CAUE			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5069CAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5069CAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5069CAUE-T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5069DAUE			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5069DAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5069DAUE+T			Active	TSSOP;16 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5069DAUE-T			Active	TSSOP;16 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX5069AEVKIT

Evaluation Kit for the MAX5069A

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