Maxim > Products > Power and Battery Management > MAX17595, MAX17596, MAX17597

MAX17595, MAX17596, MAX17597

Peak-Current-Mode Controllers for Flyback and Boost Regulators

Enable Compact, Cost-Effective, and Highly Flexible Isolated/Nonisolated Power Supplies

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

Notify me when the EE-Sim online simulation tool supports: [MAX17595][MAX17596][MAX17597]

The MAX17595/MAX17596/MAX17597 is a family of peak-current-mode controllers which contain all the circuitry required for the design of wide input-voltage flyback and boost regulators. The MAX17595 offers optimized input rising and falling thresholds for universal input AC-DC converters and telecom DC-DC (36V–72V input range) power supplies. The MAX17596 offers input rising and falling thresholds suitable for low-voltage DC-DC applications (4.5V–36V input range). The MAX17597 offers all circuitry needed to implement a boost converter controller. All three controllers contain a built-in gate driver for external n-channel MOSFETs.

The MAX17595/MAX17596/MAX17597 house an internal error amplifier with 1% accurate reference, useful in implementations without the need for an external reference. The switching frequency is programmable from 100kHz to 1MHz with an accuracy of 8% using an external resistor, allowing optimization of magnetic and filter components, resulting in compact and cost-effective power conversion solutions. For EMI sensitive applications, the MAX17595/MAX17596/MAX17597 family incorporates a programmable-frequency dithering scheme, enabling low-EMI spread-spectrum operation.

An EN/UVLO input allows the user to start the power supply precisely at the desired input voltage, while also functioning as an on/off pin. The OVI pin enables implementation of an input overvoltage protection scheme, ensuring that the converter shuts down when the DC input voltage exceeds a set maximum value. The SS pin allows programmable soft-start time for the power converter, and helps limit inrush current during startup. The MAX17595/MAX17596/MAX17597 family also allows the designer to choose between voltage soft-start and current soft-start modes, useful in optoisolated designs. A programmable slope compensation scheme is provided to enhance the stability of the peak-current-mode control scheme.

Hiccup-mode overcurrent protection and thermal shutdown are provided to minimize dissipation in overcurrent and overtemperature fault conditions. The IC is available in a space-saving 16-pin, 3mm x 3mm TQFN package with 0.5mm lead spacing.

Data Sheet

Download	Rev 0	(PDF, 2.4MB)
E-Mail

An evaluation kit is available: MAX17595EVKIT

Key Features

Peak Current Mode Offline (Universal Input AC) and Telecom (36V–72V) Flyback Controller (MAX17595)
Peak-Current-Mode DC-DC Flyback Controller (4.5V–36V Input Range) (MAX17596)
Peak-Current-Mode Nonsynchronous Boost PWM Controller (4.5V–36V Input Range) (MAX17597)
Current Mode Control Provides Excellent Transient Response
Low 22µA Startup Supply Current
100kHz to 1MHz Programmable Switching Frequency
Programmable Frequency Dithering for Low-EMI Spread-Spectrum Operation
Adjustable Current Limit with External Current-Sense Resistor
Fast Cycle-By-Cycle Peak Current Limiting
Hiccup-Mode Short-Circuit Protection
Overtemperature Protection
Programmable Soft-Start and Slope Compensation
Programmable Voltage or Current Soft-Start Schemes
Input Overvoltage Protection
Space-Saving, 3mm x 3mm TQFN Package

Applications/Uses

Battery-Powered Applications
Industrial, Telecom, and Automotive Applications
Universal Input Offline AC-DC Power Supplies
Wide-Range DC-Input Flyback/Boost Battery Chargers

Key Specifications:

Isolated Power Supplies

Part Number

Application (V_IN)

V_IN
(V)

Topology

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

MAX17595 NEW!

Networking (48V)

Power Over Ethernet (32-58V)

Telecom (36-72V)

Universal Off-line (90-240VAC)

Flyback

Linear

Opto

1000

0.032

1.5

-40 to +125

MAX17596 NEW!

Base Station (24V)

Industrial (24V)

4.5

See All Isolated Power Supplies (26)

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.

Step-Up Switching Regulators

Part Number

V_IN
(V)

V_OUT
(V)

Max. I_OUT
(A)

Output Adjust. Method

DC-DC Outputs

Oper. Freq.
(kHz)

Design Tools

Package/Pins

Smallest Available Pckg.
(mm²)

min

max

min

max

≥

≤

max w/pins

MAX17597 NEW!

4.5

250

Resistor

1000

EE-Sim

TQFN/16

9.6

See All Step-Up Switching Regulators (95)

Diagram

Block Diagram

Product Guides

Communications (PDF)

Reliability Reports

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Software/Models

Notify me when the EE-Sim online simulation tool supports: [MAX17595][MAX17596][MAX17597]

Ordering Information

Filters:

Part Number:

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
MAX17595ATE+			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX17595ATE+T			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX17596ATE+			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX17596ATE+T			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX17597ATE+			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX17597ATE+T			Active	TQFN;16 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0031 (PDF) Use pkgcode/variation: T1633+4*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

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

MAX17595EVKIT

Evaluation Kit for the MAX17595

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