Microchip MCP1012-V/EKA

Manufacturer No:

MCP1012-V/EKA

Manufacturer:

Microchip

Package:

Description:

Primary-Side Auxillary Start-up IC for Isolated Converters

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MCP1012-V/EKA information

Microchip MCP1012-V/EKA technical specifications, attributes, parameters and parts with similar specifications to Microchip MCP1012-V/EKA.

Type
Parameter

Minimum Input Voltage (V)
16V (Typical)

Maximum Input Voltage (V)
500V Continuous/700V Transient

Osc Frequency Min (kHz)
37

Osc Frequency Max (kHz)
63

On-Board FET?
False

Type of On-Board FET?
NA

RDSon (mΩ) typ
NA

Overcurrent Protection
Cycle-Cycle

Other Protections
CCM, OVP, UVLO, OTP (Shutdown)

Package
7/SOIC

Download datasheets and manufacturer documentation for Microchip MCP1012-V/EKA.

The MCP1012 is used as a primary-side start-up IC for starting an offline auxiliary switching supply working in conjunction with a secondary-side controller. The MCP1012 does not linearly regulate the power converter, but rather a secondary-side controller (digital and/or analog) accurately linear regulates using sophisticated adaptive control schemes that enhance performance and efficiency.

The primary function of the MCP1012 are to provide startup of the flyback converter using an internal open-loop, peak current-mode current regulator. It does this by accepting PWM commands via an isolation medium (s.a. a pulse transformer, opto, or other) from a secondary-side controller. It integrates various protection features, including an undervoltage lockout (UVLO) and overvoltage lockout (OVLO) protection, and overtemperature protection (OTP.) Additionally, the MCP1012 provides peak cycle-by-cycle current limiting both when under control of its internal current regulator or under control of the secondary-side controller.

HV Startup Capability (500V Continuous, 700V Transient w/series 10K Resistor)
Internal Open-Loop, Peak Current-Mode (PCM) Current Regulator for Start-up (w/Few External Components) w/Integrated Robust Gate Driver
Current Regulator (Constant Off Time, 21us)
Protection Against Continuous Conduction Mode (CCM) of Operation
Programmable Low-Frequency Oscillator (LFO) Period to Set Startup Power
Able to Accept External PWM Commands from a Secondary Controller via Isolator (Various)
Undervoltage Lockout (UVLO) and Overvoltage Lockout (OVLO) Protections, Cycle-by-Cycle Current Limiting, Overtemperature Protection (Thermal Shutdown)
Sleep and Wake-up Commands, w/Low Standby Power (<15 mW)
Package: 7-Lead SOIC

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