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Part Number: MAX5075
Description: The MAX5075 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated osc...
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MAX5075
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DataSheet
General Description
MAX5075 General Description
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 programmable, accurate, integrated oscillator with a synchronizing 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® package and is specified over the -40°C to +125°C operating temperature range.
MAX5075 Maximum Ratings
VCC to DGND, PGND ........................................................-0.3V to +18V
CLK, RT to DGND................................................................-0.3V to +6V
NDRV1, NDRV2 to PGND.......................................-0.3V to (VCC + 0.3V)
DGND to PGND................................................................-0.3V to +0.3V
CLK Current...............................................................................±20mA
NDRV1, NDRV2 Peak Current (200ns) ...........................................±5A
NDRV1, NDRV2 Reverse Current (Latchup Current).................±500mA
Continuous Power Dissipation (TA = +70
8-Pin µMAX (derate 10.3mW/ above +70) ..........................825mW
Operating Temperature Range ....................................-40 to +125
Maximum Junction Temperature ................................................+150
Storage Temperature Range .......................................-60 to +150
Lead Temperature (soldering, 10s) ...........................................+300
CLK, RT to DGND................................................................-0.3V to +6V
NDRV1, NDRV2 to PGND.......................................-0.3V to (VCC + 0.3V)
DGND to PGND................................................................-0.3V to +0.3V
CLK Current...............................................................................±20mA
NDRV1, NDRV2 Peak Current (200ns) ...........................................±5A
NDRV1, NDRV2 Reverse Current (Latchup Current).................±500mA
Continuous Power Dissipation (TA = +70
8-Pin µMAX (derate 10.3mW/ above +70) ..........................825mW
Operating Temperature Range ....................................-40 to +125
Maximum Junction Temperature ................................................+150
Storage Temperature Range .......................................-60 to +150
Lead Temperature (soldering, 10s) ...........................................+300
MAX5075 Features
* 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
Capacitive Load
* Synchronizing Clock Frequency Generation
Options
* Thermally Enhanced 8-Pin µMAX Package
* -40°C to +125°C Operating Temperature Range
* Programmable, Accurate Internal Oscillator
* Single +4.5V to +15V Supply Voltage Range
* Dual ±3A Gate-Drive Outputs
* 1mA Operating Current at 250kHz with No
Capacitive Load
* Synchronizing Clock Frequency Generation
Options
* Thermally Enhanced 8-Pin µMAX Package
* -40°C to +125°C Operating Temperature Range
MAX5075 Typical Application
Current-Fed, High-Efficiency Power-Supply Modules
Power-Supply Building Subsystems
Push-Pull Driver Subsystems
Power-Supply Building Subsystems
Push-Pull Driver Subsystems
MAX5075 Connection Diagram
MAX5075
PDF/DataSheet Download
- Datasheet: MAX5075
- File Size: 101878 KB
- Manufacturer: MAXIM
- Click here to Download
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