MAX5014, MAX5015 Current-Mode PWM Controllers with Integrated Startup Circuit for Isolated Power Supplies

Description

The MAX5014/MAX5015 integrate all the building blocks necessary for implementing DC-DC fixed-frequency isolated power supplies. These devices are current-mode controllers with an integrated high-voltage startup circuit suitable for isolated telecom/industrial voltage range power supplies. Current-mode control with leading-edge blanking simplifies control-loop design and internal ramp compensation circuitry stabilizes the current loop when operating at duty cycles above 50% (MAX5014). The MAX5014 allows 85% operating duty cycle and could be used to implement flyback converters, whereas the MAX5015 limits the operating duty cycle to less than 50% and can be used in single-ended forward converters. A high-voltage startup circuit allows these devices to draw power directly from the 18V to 110V input supply during startup. The switching frequency is internally trimmed to 275kHz ±10%, thus reducing magnetics and filter component costs.

The MAX5014/MAX5015 are available in 8-pin SO packages. An evaluation kit (MAX5015EVKIT) is also available.

Warning: The MAX5014/MAX5015 are designed to operate with high voltages. Exercise caution.

Key Features

Applications/Uses

Wide Input Range: (18V to 110V) or (13V to 36V)
Current-Mode Control
Leading-Edge Blanking
Internally Trimmed 275kHz ±10% Oscillator
Low External Component Count
Soft-Start
High-Voltage Startup Circuit
Pulse-by-Pulse Current Limiting
Thermal Shutdown
SO-8 Package

	Industrial Power Supplies
	Isolated Power Supplies
	Networking Power Supplies
	Telecom Power Supplies

Key Specifications: Isolated Power Supplies

Part Number

Application (Nominal Input Voltage)

V_IN (min) (V)

V_IN (max) (V)

Topology

Features

Control Loop

Feedback Type

Frequency (kHz)

Max. Duty Cycle (%)

Operating Current, I_CC (max) (mA)

Gate Drive Current (A)

Current Sense Threshold (mV)

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX5014

•	Base Station (24V)

•	Industrial (24V)

•	Networking (48V)

•	Power Over Ethernet (32-58V)

•	Telecom (36-72V)

110

Flyback

•	High Voltage Start-Up Circuit

•	Thermal Shutdown

•

UVLO

Current Mode

Opto

275

1.4

465

Yes

SOIC/8

-40 to +85
0 to +70

$0.75 @ 1k

MAX5015

Single-Ended Forward

$0.75 @ 1k

See All Isolated Power Supplies (29)

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.

Ordering Information

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. More: SeeFull Data Sheet or Part 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.

Devices: 1-18 of 18

MAX5014

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX5014CSA

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX5014CSA-T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX5014CSA+T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5014CSA+

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5014ESA+T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5014ESA+

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5014ESA-T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX5014ESA

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX5015

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX5015ESA-G077

-40°C to +85°C

See data sheet

MAX5015ESA-TG077

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX5015CSA

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX5015CSA-T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX5015CSA+

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5015CSA+T

0°C to +70°C

See data sheet

MAX5015ESA+

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5015ESA+T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+5*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5015ESA-T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX5015ESA

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-5*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis