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ADM1041

Features: ·Digital calibration via internal EEPROM·Supports SSI specification·Comprehensive fault detection·Reduced component count on secondary side·Standalone or microcontroller control·Generates error signal for primary-side PWM·Output voltage adjustment and margining·Current sharing·Current li...

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SeekIC No. : 004275520 Detail

ADM1041: Features: ·Digital calibration via internal EEPROM·Supports SSI specification·Comprehensive fault detection·Reduced component count on secondary side·Standalone or microcontroller control·Generates ...

ADM1041 Data Sheet

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Part Number:
ADM1041
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Digital calibration via internal EEPROM
·Supports SSI specification
·Comprehensive fault detection
·Reduced component count on secondary side
·Standalone or microcontroller control
·Generates error signal for primary-side PWM
·Output voltage adjustment and margining
·Current sharing
·Current limit adjustment
·OrFET control
·Programmable soft-start slew rate
·Standalone or microcontroller operation
·Differential load voltage sense
·AC mains undervoltage detection (ac sense)
·Overvoltage protection
·SMBus interface (I2C compatible)
·Low-drift precision 2.5 V reference
·Voltage error amplifier
·Differential current sense
·Sense resistor or current transformer option
·Overvoltage protection
·Undervoltage protection
·Overcurrent protection
·Overtemperature protection
·Start-up undervoltage blanking
·Programmable digital debounce and delays
·352-byte EEPROM available for field data
·160-byte EEPROM for calibration
·Ground continuity monitoring


Application

·Network servers
·Web servers
·Power supply control


Specifications

Parameter Rating
Supply Voltage (Continuous), VDD 6.5 V
Data Pins SDA, SCL, VDATA VDD + 0.5 V,
GND − 0.3 V
Continuous Power at 25°C, P D-QSOP24 450 mW
Operating Temperature, TAMB −40°C to +85°C
Junction Temperature, TJ 150°C
Storage Temperature, TSTG −60°C to +150°C
Lead Temperature
(Soldering, 10 Seconds), TL		 300°C
ESD Protection on All Pins, VESD 2 kV
Thermal Resistance, Junction to Air, JA 150°C/W
ICT Source Current1 7 mA
1 This is the maximum current that can be sourced out from Pin 8 (ICT pin).


Description

The ADM1041 is a secondary-side and management IC specifically designed to minimize external component counts and to eliminate the need for manual calibration or adjustment on the secondary-side controller. The principle application of this IC is to provide voltage control, current share, and housekeeping
functions for single output in N+1 server power supplies.

The ADM1041 is manufactured with a 5 V CMOS process and combines digital and analog circuitry. An internal EEPROM provides added flexibility in the trimming of timing and voltage and selection of various functions. Programming is done via an SMBus serial port that also allows communication capability
with a microprocessor or microcontroller.

The usual configuration using this ADM1041 IC is on a one per output basis. Outputs from the IC can be wire-ORed together or bused in parallel and read by a icroprocessor. A key feature on this IC is support for an OrFET circuit when higher efficiency or power density is required.




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