MAX5094DAUA+ by Analog Devices

High-Performance, Single-Ended, Current-Mode PWM Controllers

Status: Active
Series: MAX5094A, MAX5094B, MAX5094C, MAX5094D
RoHS: Unknown
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The MAX5094A/B/C/D/MAX5095A/B/C BiCMOS, high-performance, current-mode PWM controllers have all the features required for wide input-voltage range isolated/nonisolated power supplies. These controllers are used for low- and high-power universal input voltage and telecom power supplies. The MAX5094/MAX5095 contain a fast comparator with only 60ns typical delay from current sense to the output for overcurrent protection. The MAX5094 has an integrated error amplifier with the output at COMP. Softstart is achieved by controlling the COMP voltage rise using external components. The oscillator frequency is adjustable from 20kHz to 1MHz with an external resistor and capacitor. The timing capacitor discharge current is trimmed allowing for programmable dead time and maximum duty cycle for a given frequency. The available saw-toothed waveform at RTCT can be used for slope compensation when needed. The MAX5095A/MAX5095B include a bidirectional synchronization circuit allowing for multiple controllers to run at the same frequency to avoid beat frequencies. Synchronization is accomplished by simply connecting the SYNC of all devices together. When synchronizing with other devices, the MAX5095A/MAX5095B with the highest frequency synchronizes the other devices. Alternatively, the MAX5095A/MAX5095B can be synchronized to an external clock with an open-drain output stage running at a higher frequency. The MAX5095C provides a clock output pulse (ADV_CLK) that leads the driver output (OUT) by 110ns. The advanced clock signal is used to drive the secondary-side synchronous rectifiers. The MAX5094A/B/C are available in the 8-pin SO and 8-pin µMAX® packages. The MAX5094D and MAX5095A/B/C are available in the 8-pin µMAX package. All devices operate over the automotive temperature range of -40°C to +125°C.

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Prices starting from US$5.11

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Features

Pin-for-Pin Replacement for UCC28C43 (MAX5094A) and UCC28C45 (MAX5094B)
2A Drive Source and 1A Sink Capability
Up to 1MHz Switching Frequency Operation
Bidirectional Frequency Synchronization (MAX5095A/MAX5095B)
Advanced Output Drive for Secondary-Side Synchronous Rectification (MAX5095C)
Fast 60ns Cycle-by-Cycle Current Limit
Trimmed Oscillator Capacitor Discharge Current Sets Maximum Duty Cycle Accurately
Accurate ±5% Start Voltage with 0.8V Hysteresis
Low 32µA Startup Current
5V Regulator Output (REF) with 20mA Capability
Versions with 0.3V Current-Sense Threshold
Overtemperature Shutdown

Specifications

VIN (V) (min) 8.4
VIN (V) (max) 26.5
Topology FlybackSingle-Ended Forward
Application (VIN) Base Station (24V)Industrial (24V)Networking (48V)Power Over Ethernet (32-58V)Telecom (36-72V)
Control Loop Current Mode
Feedback LinearOpto
Switching Frequency (kHz) 1000
Duty Cycle (%) (max) 50100
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 1.07


MAX5094DAUA+ Semiconductors - ICs by Analog Devices

PWM CONTROLLER 1KHZ 26.5V UMAX-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Input Voltage 26.5V
Output Voltage 5V
Output Current -
Supply Voltage Min -
Supply Voltage Max -
Controller IC Case Style MSOP
No. of Pins 8Pins
Frequency 1kHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

High-Performance, Single-Ended | Analog Devices
PWM CONTROLLER, 1KHZ, 26.5V, UMAX-8 | Farnell

Frequently Asked Questions

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Is the MAX5094DAUA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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