MAX5075AAUA+ Maxim Integrated Products, MAX5075AAUA+ Datasheet

IC DRVR FET P-P 8-UMAX

MAX5075AAUA+

Manufacturer Part Number
MAX5075AAUA+
Description
IC DRVR FET P-P 8-UMAX
Manufacturer
Maxim Integrated Products
Type
Low Sider
Datasheet

Specifications of MAX5075AAUA+

Configuration
Low-Side
Input Type
Self Oscillating
Current - Peak
3A
Number Of Configurations
2
Number Of Outputs
2
Voltage - Supply
4.5 V ~ 15 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Rise Time
10 ns
Fall Time
10 ns
Supply Voltage (min)
4.5 V
Supply Current
1 mA
Maximum Power Dissipation
825 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Number Of Drivers
2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Delay Time
-
High Side Voltage - Max (bootstrap)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX5075 is a +4.5V to +15V push-pull, current-fed
topology driver subsystem with an integrated oscillator
for use in telecom module power supplies. The device
drives two MOSFETs connected to a center-tapped
transformer primary providing secondary-side, isolated,
negative or positive voltages. This device features a pro-
grammable, accurate, integrated oscillator with a syn-
chronizing clock output that synchronizes an external
PWM regulator. A single external resistor programs the
internal oscillator frequency from 50kHz to 1.5MHz.
The MAX5075 incorporates a dual MOSFET driver with
±3A peak drive currents and 50% duty cycle. The
MOSFET driver generates complementary signals to
drive external ground-referenced n-channel MOSFETs.
The MAX5075 is available with a clock output frequency
to MOSFET driver frequency ratio of 1x, 2x, and 4x. The
MAX5075 is available in a thermally enhanced 8-pin
µMAX
+125°C operating temperature range.
Current-Fed, High-Efficiency Power-Supply Modules
Power-Supply Building Subsystems
Push-Pull Driver Subsystems
19-3662; Rev 1; 5/07
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configuration 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.
Push-Pull FET Driver with Integrated Oscillator
GND
V
IN
®
package and is specified over the -40°C to
CONTROLLER
GND
PWM
V
IN
SYNCIN
________________________________________________________________ Maxim Integrated Products
DRVH
DRVL
General Description
V
CC
Applications
4.7kΩ
1nF
CLK
RT
V
CC
MAX5075
I.C.
NDRV2
NDRV1
PGND
♦ Current-Fed, Push-Pull Driver Subsystem
♦ Programmable, Accurate Internal Oscillator
♦ Single +4.5V to +15V Supply Voltage Range
♦ Dual ±3A Gate-Drive Outputs
♦ 1mA Operating Current at 250kHz with No
♦ Synchronizing Clock Frequency Generation
♦ Thermally Enhanced 8-Pin µMAX Package
♦ -40°C to +125°C Operating Temperature Range
*EP = Exposed paddle.
Note: All devices specified for -40°C to +125°C operating
temperature range.
MAX5075AAUA 8 µMAX-EP* AAAU
MAX5075BAUA 8 µMAX-EP*
MAX5075CAUA 8 µMAX-EP* AAAW
Capacitive Load
Options
PART
and Clock Output
Typical Operating Circuit
PIN-
PACKAGE
Ordering Information
MARK
AAAV
TOP
CODE
U8E-2
U8E-2
U8E-2
PKG
Features
f
CLK
V
RATIO
OUT
/f
1
2
4
NDRV_
1

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MAX5075AAUA+ Summary of contents

Page 1

... MAX5075 is available in a thermally enhanced 8-pin ® µMAX package and is specified over the -40°C to +125°C operating temperature range. Current-Fed, High-Efficiency Power-Supply Modules Power-Supply Building Subsystems Push-Pull Driver Subsystems µMAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configuration appears at end of data sheet DRVH PWM ...

Page 2

Push-Pull FET Driver with Integrated Oscillator and Clock Output ABSOLUTE MAXIMUM RATINGS V to DGND, PGND .............................................-0.3V to +18V CC CLK DGND.....................................................-0.3V to +6V NDRV1, NDRV2 to PGND...........................-0. DGND to PGND.....................................................-0.3V to +0.3V CLK Current......................................................................±20mA NDRV1, ...

Page 3

Push-Pull FET Driver with Integrated Oscillator (V = +12V 124kΩ, NDRV_ = open, CLK = open SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.25MHz OSC 500kHz OSC ...

Page 4

Push-Pull FET Driver with Integrated Oscillator and Clock Output (V = +12V 124kΩ, NDRV_ = open, CLK = open OSCILLATOR FREQUENCY vs 10,000 1000 100 10 10 100 1000 R (kΩ) RT MAX5075B WAVEFORM ...

Page 5

Push-Pull FET Driver with Integrated Oscillator PIN NAME Synchronizing Clock Output. Clock output with a ±10mA peak current drive that can be used to 1 CLK synchronize an external PWM regulator. CLK/NDRV1 frequency has a 1x, 2x ratio. ...

Page 6

Push-Pull FET Driver with Integrated Oscillator and Clock Output Detailed Description The MAX5075 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated oscillator for use in 48V module power supplies. The MAX5075 features a programmable, accurate ...

Page 7

Push-Pull FET Driver with Integrated Oscillator Power Dissipation The power dissipation of the MAX5075 is a function of the sum of the quiescent current and the output current (either capacitive or resistive load). Maintain the sum of the currents so ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Package Information 21-0107 is a registered trademark of Maxim Integrated Products, Inc ...

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