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Numéro de référence | IR3502 | ||
Description | CONTROL IC | ||
Fabricant | International Rectifier | ||
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1 Page
IR3502
DATA SHEET
XPHASE3TM CONTROL IC
DESCRIPTION
The IR3502 control IC combined with an XPHASE3TM Phase IC provides a full featured and flexible way to
implement a complete VR11.0 and VR11.1 power solution. The IR3502 provides overall system control
and interfaces with any number of Phase ICs, each driving and monitoring a single phase. The XPhase3TM
architecture results in a power supply that is smaller, less expensive, and easier to design while providing
higher efficiency than conventional approaches.
FEATURES
• 1 to X phase operation with matching Phase IC
• 0.5% overall system set point accuracy
• Daisy-chain digital phase timing provides accurate phase interleaving without external components
• Programmable 250kHz to 9MHz clock oscillator frequency provides per phase switching frequency of
250kHz to 1.5MHz
• Programmable Dynamic VID Slew Rate
• Programmable VID Offset or No Offset
• Programmable Load Line Output Impedance
• High speed error amplifier with wide bandwidth of 30MHz and fast slew rate of 10V/us
• Programmable constant converter output current limit during soft start
• Hiccup over current protection with delay during normal operation
• Central over voltage detection and latch with programmable threshold and communication to phase ICs
• Over voltage signal output to system with overvoltage detection during powerup and normal operation
• Load current reporting
• Single NTC thermistor compensation for correct current reporting, OC Threshold, and Droop
• Detection and protection of open remote sense line
• Open control loop protection
• IC bias linear regulator controller
• Programmable VRHOT function monitors temperature of power stage through a NTC thermistor
• Remote sense amplifier with true converter voltage sensing
• Simplified VR Ready (VRRDY) output provides indication of proper operation
• Small thermally enhanced 32L 5mm x 5mm MLPQ package
• RoHS compliant
ORDERING INFORMATION
Device
IR3502MTRPBF
* IR3502MPBF
Package
32 Lead MLPQ
(5 x 5 mm body)
32 Lead MLPQ
(5 x 5 mm body)
Order Quantity
3000 per reel
100 piece strips
• Samples only
Page 1 of 39
July 28, 2009
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Pages | Pages 30 | ||
Télécharger | [ IR3502 ] |
No | Description détaillée | Fabricant |
IR350 | Receiver Pre-amp Module | ETC |
IR3500 | Complete VR11.0 or AMD PVID power solution | International Rectifier |
IR3502 | CONTROL IC | International Rectifier |
IR3505 | Phase IC combined | International Rectifier |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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