MAX15000AEUB+ by Analog Devices

Current-Mode PWM Controllers with Programmable Switching Frequency


The MAX15000/MAX15001 current-mode PWM controllers contain all the control circuitry required for the design of wide-input-voltage isolated and nonisolated power supplies. The MAX15000 is well suited for universal input (rectified 85VAC to 265VAC) or telecom (-36VDC to -72VDC) power supplies. The MAX15001 is well suited for low input voltage (9.5VDC to 24VDC) power supplies. The MAX15000/MAX15001 contain an internal error amplifier that regulates the tertiary winding output voltage which is used in primary-side regulated isolated power supplies. Primary-side regulation eliminates the need for an optocoupler. An input undervoltage lockout (UVLO) is provided for programming the input-supply start voltage and to ensure proper operation during brownout conditions. An open-drain UVLO flag output, with 210µs internal delay, allows the sequencing of a secondary-side controller. The input-supply start voltage is externally programmable with a voltage divider. A UVLO/EN input is used to shutdown the MAX15000/MAX15001. Internal digital soft-start eliminates output voltage overshoot. The MAX15000 has an internal bootstrap UVLO with large hysteresis that requires a minimum 23.6V for startup. The MAX15001 does not have the internal bootstrap UVLO and can be biased directly from a minimum voltage of 9.5V. The switching frequency for the MAX15000/MAX15001 is programmable with an external resistor. The MAX15000A/MAX15001A provide a 50% maximum duty-cycle limit, while the MAX15000B/MAX15001B provide a 75% maximum duty-cycle limit. These devices are available in 10-pin µMAX® packages and are rated for operation over the -40°C to +85°C temperature range.

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Features

Current-Mode Control
Programmable Switching Frequency Up to 625kHz
Accurate UVLO Threshold (1%)
Open-Drain UVLO Flag Output with Internal Delay
36V to 72V Telecom Voltage Range
Universal Offline Input Voltage Range Rectified 85VAC to 265VAC (MAX15000)
Rectified 85VAC to 265VAC (MAX15000)
9.5V to 24V Input (MAX15001)
Digital Soft-Start
Internal Bootstrap UVLO With Large Hysteresis (MAX15000)
Internal Error Amplifier with 1.5% Accurate Reference
50µA (typ) Startup Supply Current
50% Maximum Duty-Cycle Limit (MAX15000A/MAX15001A)
75% Maximum Duty-Cycle Limit (MAX15000B/MAX15001B)
60ns Cycle-by-Cycle Current-Limit Propagation Delay
Available in Tiny 10-Pin µMAX Packages

Specifications

VIN (V) (min) 24
VIN (V) (max) 1000
Topology FlybackSingle-Ended Forward
Application (VIN) Networking (48V)Power Over Ethernet (32-58V)Telecom (36-72V)Universal Off-line (90-240VAC)
Control Loop Current Mode
Feedback Primary Side
Switching Frequency (kHz) 625
Duty Cycle (%) (max) 5075
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 0


MAX15000AEUB+ Semiconductors - ICs by Analog Devices

PWM CONTROLLER 2.5MHZ 265VAC UMAX-10

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

Specifications

Input Voltage -
Output Voltage -
Output Current -
Supply Voltage Min 85VAC
Supply Voltage Max 265VAC
Controller IC Case Style µMAX
No. of Pins 10Pins
Frequency 2.5MHz
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Current-Mode PWM Controllers w | Analog Devices
PWM CONTROLLERS, CURRENT MODE, SMD | Farnell

Frequently Asked Questions

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Is the MAX15000AEUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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