max5069aauet Maxim Integrated Products, Inc., max5069aauet Datasheet

no-image

max5069aauet

Manufacturer Part Number
max5069aauet
Description
Max5069 High-frequency, Current-mode Pwm Controller With Accurate Oscillator And Dual Fet Drivers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX5069AAUET.pdf (19 pages)
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-fre-
quency power supplies. Isolated or nonisolated push-
pull 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 program-
mable 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 opera-
tion during brownout conditions.
A single external resistor programs the oscillator frequen-
cy 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 auto-
motive 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.
19-3175; Rev 1; 7/04
Selector Guide appears at end of data sheet.
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.
High-Frequency, Current-Mode PWM Controller
with Accurate Oscillator and Dual FET Drivers
Universal-Input AC Power Supplies
Isolated Telecom Power Supplies
Networking System Power Supplies
Server Power Supplies
Industrial Power Conversion
________________________________________________________________ Maxim Integrated Products
General Description
Applications
♦ Current-Mode Control with 47µA (typ) Startup
♦ Oscillator Frequency Programmable to 2.5MHz
♦ Resistor-Programmable ±4.5% Accurate
♦ Dual Gate-Drive Output for Half/Full-Bridge or
♦ Rectified 85VAC to 265VAC, or 36VDC to 72VDC
♦ Input Directly Driven from 10.8V to 24V
♦ Programmable Dead Time and Slope
♦ Programmable Startup Voltage (UVLO)
♦ Programmable UVLO Hysteresis (MAX5069B/C)
♦ Frequency Synchronization Input (MAX5069A/D)
♦ -40°C to +125°C Automotive Temperature Range
♦ 16-Pin Thermally Enhanced TSSOP-EP Package
*EP = Exposed pad.
MAX5069AAUE
MAX5069BAUE
MAX5069CAUE
MAX5069DAUE
Current
Switching Frequency
Push-Pull Applications
Input (MAX5069A/B)
(MAX5069C/D)
Compensation
TOP VIEW
PART
*MAX5069B/C.
SYNC(HYST*)
UVLO/EN
SCOMP
FLTINT
COMP
RT
DT
FB
1
2
6
3
4
5
7
8
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
TSSOP-EP
MAX5069
Pin Configuration
16
15
14
13
12
11
10
9
REG5
IN
V
NDRVA
NDRVB
PGND
AGND
CS
CC
PIN-PACKAGE
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
Features
1

Related parts for max5069aauet

Image
Part Number
Description
Manufacturer
Datasheet
Request R
mxd1210
Part Number:
mxd1210
Description:
Nonvolatile Ram Controller Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MXD1210.pdf (8 pages)
ds2065w
Part Number:
ds2065w
Description:
3.3v Single-piece 8mb Nonvolatile Sram Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS2065W.pdf (12 pages)
ds1865
Part Number:
ds1865
Description:
Pon Triplexer Control And Monitoring Circuit Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS1865.pdf (66 pages)
dg300aa
Part Number:
dg300aa
Description:
Ttl Compatible Cmos Analog Switches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DG300AA.pdf (10 pages)
dg421dy
Part Number:
dg421dy
Description:
Improved Low-power, Cmos Analog Switches With Latches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DG421DY.pdf (12 pages)
max9789a
Part Number:
max9789a
Description:
Windows Vista-compliant, Stereo Class Ab Speaker Amplifiers And Directdrive Headphone Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX9789A.pdf (26 pages)
max5054bata
Part Number:
max5054bata
Description:
4a, 20ns, Dual Mosfet Drivers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX5054BATA.pdf (17 pages)
max2003cse
Part Number:
max2003cse
Description:
Nicd/nimh Battery Fast-charge Controllers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2003CSE.pdf (20 pages)
max2235eup
Part Number:
max2235eup
Description:
3.6v, 1w Autoramping Power Amplifier For 900mhz Applications Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2235EUP.pdf (8 pages)
max2264eue
Part Number:
max2264eue
Description:
2.7v, Single-supply, Cellular-band Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2264EUE.pdf (16 pages)
max2841ebc-t
Part Number:
max2841ebc-t
Description:
5ghz Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX2841EBC-T.pdf (9 pages)
MAX3514EVKIT
Part Number:
MAX3514EVKIT
Description:
Evaluation Kits for the MAX3514
Manufacturer:
Maxim Integrated Products, Inc.
max9722beue
Part Number:
max9722beue
Description:
5v, Differential Input, Directdrive, 130mw Stereo Headphone Amplifiers With Shutdown Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
MAX9722BEUE.pdf (20 pages)
DS32C35
Part Number:
DS32C35
Description:
Accurate I2c Rtc With Integrated Tcxo/crystal/fram
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS32C35.pdf (22 pages)
ds1863
Part Number:
ds1863
Description:
Ds1863 Burst-mode Pon Controller With Integrated Monitoring
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
DS1863.pdf (61 pages)

max5069aauet Summary of contents

Page 1

Rev 1; 7/04 High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers General 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 ...

Page 2

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers ABSOLUTE MAXIMUM RATINGS IN to PGND ............................................................-0.3V to +30V IN to AGND.............................................................-0.3V to +30V V to PGND..........................................................-0.3V to +13V AGND..........................................................-0.3V to +13V CC FB, COMP, CS, ...

Page 3

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers ELECTRICAL CHARACTERISTICS (continued +12V for the MAX5069C/ 1µ 100kΩ, NDRV_ = floating, T VCC RT PARAMETER SYMBOL CS Input Bias ...

Page 4

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers ELECTRICAL CHARACTERISTICS (continued +12V for the MAX5069C/ 1µ 100kΩ, NDRV_ = floating, T VCC RT PARAMETER SYMBOL NDRV_ Switching Frequency ...

Page 5

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers (V = +23.6V for MAX5069A/B at startup, then reduces to +12V 100kΩ, NDRV_ = floating 0V BOOTSTRAP UVLO WAKE-UP LEVEL ...

Page 6

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers (V = +23.6V for MAX5069A/B at startup, then reduces to +12V 100kΩ, NDRV_ = floating 0V REG5 OUTPUT VOLTAGE vs. ...

Page 7

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers (V = +23.6V for MAX5069A/B at startup, then reduces to +12V 100kΩ, NDRV_ = floating 0V FLTINT CURRENT vs. TEMPERATURE ...

Page 8

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers PIN NAME MAX5069A MAX5069B MAX5069D MAX5069C — SYNC — 2 HYST 3 3 SCOMP UVLO/ ...

Page 9

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers Detailed Description The MAX5069 is a current-mode, dual MOSFET driver, PWM controller designed for isolated and nonisolated push-pull or half-/full-bridge power-supply applications. A bootstrap UVLO with a programmable hysteresis, ...

Page 10

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers FLTINT MAX5069B REG5 SCOMP AGND PGND Figure 1. Nonisolated Power Supply with Programmable Input Supply ...

Page 11

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers MAX5069A/D 1.23V 1.18V Figure 2. Setting the MAX5069A/D Undervoltage Lockout Threshold hysteresis that allows the user to set a voltage (V disable the controller (see Figure 3). At the ...

Page 12

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers MAX5069A/B Startup Operation Normally derived from the tertiary winding of the IN transformer. However, at startup there is no energy delivered through the transformer; hence, a special ...

Page 13

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers FLTINT C3 MAX5069B REG5 SCOMP AGND PGND Figure 6. Secondary-Side, Regulated, Isolated Power Supply ...

Page 14

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers Oscillator/Switching Frequency Use an external resistor program the MAX5069 internal oscillator frequency from 50kHz to 2.5MHz. The MAX5069 NDRVA/NDRVB switching frequency is one half of the ...

Page 15

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers Note that cycle-by-cycle current limiting is provided at all times by CS with a threshold of 314mV (typ). The fault-integration circuit forces a 60µA current onto FLTINT each time ...

Page 16

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers The current-sense resistor (R ), connected between CS the source of the MOSFET and ground, sets the current limit. The CS input has a voltage trip level (V 314mV. ...

Page 17

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers ______________________________________________________________________________________ Typical Operating Circuit 17 ...

Page 18

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers HYST** UVLO/EN UVLO 1.23V/ 1.18V 2.8V/ 1.6V 60µA Q FLTINT CURRENT-LIMIT COMPARATOR 314mV 5kΩ CS 70ns AGND BLANKING SCOMP COMPENSATION DIGITAL 1.23V SOFT-START FB *MAX5069A/D **MAX5069B/C 18 ______________________________________________________________________________________ MAX5069 ...

Page 19

High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use ...

Related keywords