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Part Number: MAX5069
Description: The MAX5069 is a high-frequency, current-mode,pulse-width modulation (PWM) controller (with dual MOSFET drivers) that i...
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MAX5069
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General Description
MAX5069 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 AC-DC or DC-DC fixed-frequency power supplies. Isolated or nonisolated pushpull 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 programmable 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 operation during brownout conditions.
A single external resistor programs the oscillator frequency 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 automotive 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.
MAX5069 Maximum Ratings
IN to PGND .............................................................-0.3V to +30V
IN to AGND..............................................................-0.3V to +30V
VCC to PGND............................................................-0.3V to +13V
VCC to AGND............................................................-0.3V to +13V
FB, COMP, CS, HYST, SYNC, REG5 to AGND ...............-0.3V to +6V
UVLO/EN, RT, DT, SCOMP, FLTINT to AGND ...............-0.3V to +6V
NDRVA, NDRVB to PGND................................-0.3V to (VCC + 0.3V)
AGND to PGND.........................................................-0.3V to +0.3V
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP-EP (derate 21.3mW/°C above +70°C)..1702mW
Operating Temperature Range..........................-40°C to +125°C
Maximum Junction Temperature .......................................+150°C
Storage Temperature Range ............................-60°C to +150°C
Lead Temperature (soldering, 10s) ..................................+300°C
IN to AGND..............................................................-0.3V to +30V
VCC to PGND............................................................-0.3V to +13V
VCC to AGND............................................................-0.3V to +13V
FB, COMP, CS, HYST, SYNC, REG5 to AGND ...............-0.3V to +6V
UVLO/EN, RT, DT, SCOMP, FLTINT to AGND ...............-0.3V to +6V
NDRVA, NDRVB to PGND................................-0.3V to (VCC + 0.3V)
AGND to PGND.........................................................-0.3V to +0.3V
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP-EP (derate 21.3mW/°C above +70°C)..1702mW
Operating Temperature Range..........................-40°C to +125°C
Maximum Junction Temperature .......................................+150°C
Storage Temperature Range ............................-60°C to +150°C
Lead Temperature (soldering, 10s) ..................................+300°C
MAX5069 Features
♦ Current-Mode Control with 47A (typ) Startup Current
♦ Oscillator Frequency Programmable to 2.5MHz
♦ Resistor-Programmable ±4.5% Accurate Switching Frequency
♦ Dual Gate-Drive Output for Half/Full-Bridge or Push-Pull Applications
♦ Rectified 85VAC to 265VAC, or 36VDC to 72VDC Input (MAX5069A/B)
♦ Input Directly Driven from 10.8V to 24V (MAX5069C/D)
♦ Programmable Dead Time and Slope Compensation
♦ 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
♦ Oscillator Frequency Programmable to 2.5MHz
♦ Resistor-Programmable ±4.5% Accurate Switching Frequency
♦ Dual Gate-Drive Output for Half/Full-Bridge or Push-Pull Applications
♦ Rectified 85VAC to 265VAC, or 36VDC to 72VDC Input (MAX5069A/B)
♦ Input Directly Driven from 10.8V to 24V (MAX5069C/D)
♦ Programmable Dead Time and Slope Compensation
♦ 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
MAX5069 Typical Application
Universal-Input AC Power Supplies
Isolated Telecom Power Supplies
Networking System Power Supplies
Server Power Supplies
Industrial Power Conversion
Isolated Telecom Power Supplies
Networking System Power Supplies
Server Power Supplies
Industrial Power Conversion
MAX5069 Connection Diagram
MAX5069
PDF/DataSheet Download
- Datasheet: MAX5069
- File Size: 516096 KB
- Manufacturer: MAXIM
- Click here to Download
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