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MAX5053AEUA+T

Description
Switching Controllers w/Error Amplifier
CategoryPower/power management    The power supply circuit   
File Size346KB,13 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX5053AEUA+T Overview

Switching Controllers w/Error Amplifier

MAX5053AEUA+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionTSSOP,
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage24 V
Minimum input voltage10.8 V
Nominal input voltage12 V
JESD-30 codeS-PDSO-G8
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency290 kHz
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3 mm
Base Number Matches1
19-2590; Rev 1; 11/03
IT
TION K
VALUA
E
BLE
AVAILA
Current-Mode PWM Controllers with an Error
Amplifier for Isolated/Nonisolated Power Supplies
General Description
The MAX5052/MAX5053 current-mode PWM controllers
contain all the control circuitry required for the design of
wide-input-voltage isolated and nonisolated power
supplies. The MAX5052 is well suited for universal input
(rectified 85VAC to 265VAC) or telecom (-36VDC to
-72VDC) power supplies. The MAX5053 is well suited for
low-input-voltage (10.8VDC to 24VDC) power supplies.
The MAX5052/MAX5053 contain an internal error ampli-
fier that regulates the tertiary winding output voltage.
This implements a primary-side regulated, isolated
power supply, eliminating the need for an optocoupler.
An input undervoltage lockout (UVLO) is provided for
programming the input-supply start voltage and to
ensure proper operation during brownout conditions.
The input-supply start voltage is externally programma-
ble with a voltage-divider. To shutdown the device, the
UVLO pin is pulled low. Internal digital soft-start
reduces output voltage overshoot. The internal thermal
shutdown circuit protects the device in the event the
junction temperature exceeds +130°C.
The MAX5052 has an internal bootstrap UVLO with
large hysteresis that requires a minimum voltage of
23.6V for startup. The MAX5053 does not have the
internal bootstrap UVLO and can be biased directly
from a minimum voltage of 10.8V.
The 262kHz switching frequency is internally trimmed to
±12% accuracy; this allows the optimization of the
magnetic and filter components resulting in compact,
cost-effective power supplies. The MAX5052A/
MAX5053A are offered with a 50% maximum duty-cycle
limit. The MAX5052B/MAX5053B are offered with a 75%
maximum duty-cycle limit. These devices are available
in 8-pin µMAX packages and operate over the -40°C to
+85°C temperature range.
Features
Available in a Tiny 8-Pin µMAX Package
Current-Mode Control
50W Output Power
Universal Offline Input Voltage Range
Rectified 85VAC to 265VAC (MAX5052)
V
IN
Directly Driven from 10.8V to 24V Input
(MAX5053)
Digital Soft-Start
Programmable Input Startup Voltage
Internal Bootstrap UVLO with Large Hysteresis
(MAX5052)
Internal Error Amplifier with 1% Accurate
Reference
Thermal Shutdown
45µA (typ) Startup Supply Current
1.4mA (typ) Operating Supply Current
Fixed Switching Frequency of 262kHz ±12%
50% Maximum Duty-Cycle Limit
(MAX5052A/MAX5053A)
75% Maximum Duty-Cycle Limit
(MAX5052B/MAX5053B)
60ns Cycle-by-Cycle Current-Limit Response Time
MAX5052/MAX5053
Ordering Information
PART
MAX5052AEUA
MAX5052BEUA
MAX5053AEUA
MAX5053BEUA
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 µMAX
8 µMAX
8 µMAX
Applications
Universal Input AC
Power Supplies
Isolated Telecom Power
Supplies
Networking Systems
Computer Systems/
Servers
Industrial Power
Conversion
Isolated Keep-Alive
Circuits
12V Boost Regulators
12V SEPIC Regulators
Warning:
The MAX5052/MAX5053 are designed to work with
high voltages. Exercise caution.
Pin Configuration
TOP VIEW
UVLO/EN
1
FB
2
COMP
3
8
7
V
IN
V
CC
NDRV
GND
MAX5052
MAX5053
6
5
CS
4
Functional Diagram/Typical Operating Circuit/Selector
Guide appear at end of data sheet.
µMAX
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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Description Switching Controllers w/Error Amplifier Switching Controllers w/Error Amplifier Switching Controllers w/Error Amplifier Switching Controllers Current-Mode PWM Controllers with an Error Amplifier for Isolated/Nonisolated Power Supplies Switching Controllers w/Error Amplifier Switching Controllers w/Error Amplifier Switching Controllers Current-Mode PWM Controllers with an Error Amplifier for Isolated/Nonisolated Power Supply Switching Controllers w/Error Amplifier Switching Controllers w/Error Amplifier
Is it lead-free? Lead free Lead free Lead free Lead free Contains lead Contains lead Contains lead Lead free Contains lead
Is it Rohs certified? conform to conform to conform to conform to incompatible incompatible incompatible conform to incompatible
package instruction TSSOP, TSSOP, TSSOP, TSSOP, MICRO MAX, SOP-8 TSSOP, TSSOP8,.19 , TSSOP, MICRO MAX, SOP-8
Reach Compliance Code compliant compliant compliant compliant not_compliant not_compliant compliant compliant not_compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
Peak Reflow Temperature (Celsius) 260 260 260 260 245 245 NOT SPECIFIED 260 245
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Base Number Matches 1 1 1 1 1 1 1 1 1
Parts packaging code SOIC SOIC SOIC SOIC SOIC SOIC - SOIC SOIC
Contacts 8 8 8 8 8 8 - 8 8
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE - CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION - PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 24 V 24 V 24 V 24 V 24 V 24 V - 24 V 24 V
Minimum input voltage 10.8 V 10.8 V 10.8 V 10.8 V 10.8 V 10.8 V - 10.8 V 10.8 V
Nominal input voltage 12 V 12 V 12 V 12 V 12 V 12 V - 12 V 12 V
JESD-30 code S-PDSO-G8 S-PDSO-G8 S-PDSO-G8 S-PDSO-G8 S-PDSO-G8 S-PDSO-G8 - S-PDSO-G8 S-PDSO-G8
JESD-609 code e3 e3 e3 e3 e0 e0 - e3 e0
length 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm - 3 mm 3 mm
Humidity sensitivity level 1 1 1 1 1 1 - 1 1
Number of functions 1 1 1 1 1 1 - 1 1
Number of terminals 8 8 8 8 8 8 - 8 8
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C - 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C - -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP TSSOP TSSOP TSSOP TSSOP - TSSOP TSSOP
Package shape SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE - SQUARE SQUARE
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH - SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified - Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm 1.1 mm 1.1 mm 1.1 mm 1.1 mm - 1.1 mm 1.1 mm
surface mount YES YES YES YES YES YES - YES YES
Switch configuration SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE - SINGLE SINGLE
Maximum switching frequency 290 kHz 290 kHz 290 kHz 290 kHz 290 kHz 290 kHz - 290 kHz 290 kHz
technology BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS - BICMOS BICMOS
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL - INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn85Pb15) Tin/Lead (Sn85Pb15) - Matte Tin (Sn) Tin/Lead (Sn85Pb15)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING - GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm - 0.65 mm 0.65 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL - DUAL DUAL
width 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm - 3 mm 3 mm
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