SC2422ACS.TR Semtech Corporation, SC2422ACS.TR Datasheet
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SC2422ACS.TR
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SC2422ACS.TR Summary of contents
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... Cycle by cycle current limiting Programmable Internal Oscillator to 1 MHz VID IIIII Inhibit (No CPU) APPLICATIONS Intel Advanced Microprocessors AMD Athlon Servers/Workstations, high density power supplies ORDERING INFORMATION DEVICE SC2422ACS.TR SC2422A.EVB Note: (1) Only available in tape and reel packaging. A reel con- tains 1000 devices. Rsens 1 IN DRVH ...
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PRELIMINARY - August 7, 2000 ABSOLUTE MAXIMUM RATINGS Parameter Input DC Rail Voltage to GND PGND to GND Operating Temperature Range Junction Temperature Thermal Resistance Junction to Case Thermal Resistance Junction to Ambient Storage Temperature Range Lead Temperature (Soldering) 10 ...
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PRELIMINARY - August 7, 2000 ELECTRICAL CHARACTERISTICS (Cont) Unless specified +5V 25° AMB PARAMETER Current Sense Amplifier Amplifier Gain Input Offset Voltage, Input Referred CMRR PSRR Input Common Mode Range Max Differential Signal/ Current ...
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PRELIMINARY - August 7, 2000 PIN DESCRIPTION Pin 1: VID4 , MSB Pin 2: VID3 Pin 3: VID2 Pin 4: VID 1 Pin 5: VID0 , LSB Pin 6: ERROUT Error-amplifier output. Pin 7: FB Error-amplifier inverting input. Pin 8: ...
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PRELIMINARY - August 7, 2000 OUTPUT VOLTAGE (VRM 9.0) Unless specified GND High (or Floating 5V, 2-Phase operation A CC VID4 VID3 ...
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PRELIMINARY - August 7, 2000 Figure 1: SC2422A SCHEMATIC WITH +5V INPUT FOR THE AMD ATHLON BST 3 820uf,16V 820uf,16V 820uf,16V 1u,16V © 2000 SEMTECH CORP. BIPHASE CURRENT MODE CONTROLLER GND BST GND 8 3 652 MITCHELL ROAD NEWBURY PARK ...
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PRELIMINARY - August 7, 2000 Applications Information The SC2422A is an Input Current Mode Controller de- signed for High Current, High performance two phase DC/DC converters. The Current mode control is imple- mented by generating the PWM ramp from the ...
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PRELIMINARY - August 7, 2000 Programming the DAC Step Size The SC2422A allows programming the output voltage and the DAC step size by selecting external resistors. The DAC current step size, for one MSB is DAC _ ...
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PRELIMINARY - August 7, 2000 Where Input current sense resistor Oscillator period OSC G = Current Amplifier Gain CA 0.3V is the ramp added for slope compensation when the output current is near zero. The ...
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PRELIMINARY - August 7, 2000 OUTLINE DRAWING SO-16 LAND PATTERN SO-16 ECN00-1242 © 2000 SEMTECH CORP. BIPHASE CURRENT MODE CONTROLLER 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC2422A Jedec MS-012AC 10 ...