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IR35211 の電気的特性と機能

IR35211のメーカーはInternational Rectifierです、この部品の機能は「Dual Output Digital Multi-Phase Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 IR35211
部品説明 Dual Output Digital Multi-Phase Controller
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IR35211 Datasheet, IR35211 PDF,ピン配置, 機能
  Dual Output Digital Multi-Phase Controller IR35211
FEATURES
Dual output 3+1 phase PWM Controller
Easiest layout and fewest pins in the industry
Fully supports AMD® SVI1 & SVI2 with dual
OCP and Intel® VR12 & VR12.5
Overclocking & Gaming Mode
Switching frequency from 200kHz to 2MHz
per phase
IR Efficiency Shaping Features including
Dynamic Phase Control and Automatic Power
State Switching
Programmable 1-phase operation for Light
Loads and Active Diode Emulation for Very
Light Loads
IR Adaptive Transient Algorithm (ATA) on
both loops minimizes output bulk capacitors
and system cost
Auto-Phase Detection with auto-
compensation
Per-Loop Fault Protection: OVP, UVP, OCP,
OTP
I2C/SMBus/PMBus system interface for
telemetry of Temperature, Voltage, Current &
Power for both loops
Multiple Time Programming (MTP) with
integrated charge pump for easy custom
configuration
Compatible with IR ATL and 3.3V tri-state
Drivers
+3.3V supply voltage; -40°C to 85°C ambient
operation
Pb-Free, Halogen Free, RoHS, 6x6mm,
40-pin, 0.5 mm pitch QFN
DESCRIPTION
The IR35211 is a dual loop digital multi-phase buck
controller designed for CPU voltage regulation and is fully
compliant to AMD® SVI1 & SVI2 Rev 1.2 & Intel© VR12
Rev 1.5 PWM specification and VR12.5 Rev 1.3 PWM
specification.
The IR35211 includes IR’s Efficiency Shaping
Technology to deliver exceptional efficiency at minimum
cost across the entire load range. IR’s Dynamic Phase
Control adds/drops active phases based upon load
current and can be configured to enter 1-phase operation
and diode emulation mode automatically or by command.
IR’s unique Adaptive Transient Algorithm (ATA), based
on proprietary non-linear digital PWM algorithms,
minimizes output bulk capacitors and Multiple Time
Programmable (MTP) storage saves pins and enables a
small package size. Device configuration and fault
parameters are easily defined using the IR Digital Power
Design Center (DPDC) GUI and stored in on-chip MTP.
The IR35211 provides extensive OVP, UVP, OCP and
OTP fault protection and includes thermistor based
temperature sensing with VRHOT signal.
The IR35211 includes numerous features like register
diagnostics for fast design cycles and platform
differentiation, simplifying VRD design and enabling
fastest time-to-market (TTM) with “set-and-forget”
methodology.
APPLICATIONS
AMD® SVI1 & SVI2, Intel® VR12 & VR12.5 based
systems
Desktop & Notebook CPU VRs
High Performance Graphics Processors
ORDERING INFORMATION
Base Part
Number
IR35211
Package Type
QFN 6 mm x 6 mm
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable
Part Number
IR35211MxxyyTRP1
IR35211
QFN 6 mm x 6 mm
Tape and Reel
3000
IR35211MTRPBF
IR35211
QFN 6 mm x 6 mm
Tray
4900
IR35211MTYPBF
Notes 1: Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
 
  1 www.irf.com   |  © 2014 International Rectifier
July 24, 2014  |  V1.00

1 Page





IR35211 pdf, ピン配列
  Dual Output Digital Multi-Phase Controller IR35211
FUNCTIONAL BLOCK DIAGRAM
Figure 2: IR35211 Block Diagram
  3 www.irf.com   |  © 2014 International Rectifier
July 24, 2014  |  V1.00


3Pages


IR35211 電子部品, 半導体
  Dual Output Digital Multi-Phase Controller IR35211
20
21
22
23 - 25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 (PAD)
SM_CLK
NC
TSEN2/
VAUXSEN
PWM1 – PWM3
PWM1_L2
VRTN_L2
VSEN_L2
VCC
RCSM_L2
RCSP_L2
ISEN 1_L2
IRTN 1_L2
NC
ISEN 3
IRTN 3
ISEN 2
IRTN 2
ISEN 1
IRTN 1
GND
D [I]
A [O]/
A [I]
A [O]
A [O]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
A [I]
Serial Clock Input. I2C/SMBus/PMBUS serial clock line. Interface is rated to 1 MHz.
Do Not Connect.
Auxiliary Voltage Sense Input. As Auxiliary Voltage Sense, it monitors an additional power
supply to ensure that both the IR35211 Vcc and other voltages (such as VCC to the driver) are
operational.
NTC Temerature Sense Input Loop #2. An NTC network is connected to this pin to measure
temperature for VRHOT. Refer to page 44 for details.
Phase 1-3 Pulse Width Modulation Outputs. PWM signal pin which is connected to the input of
an external MOSFET gate driver. Refer to page 33 section for unused/disabled phases. The
power-up state is high-impedance until ENABLE goes active.
Loop 2 Pulse Width Modulation Outputs. PWM signal pin which is connected to the input of an
external MOSFET gate driver. Refer to page 33 section for unused/disabled phases. The power-
up state is high-impedance until ENABLE goes active.
Voltage Sense Return Input Loop#2. This pin is connected directly to Loop#2 ground at the
load and should be routed differentially with VSEN_L2.
Voltage Sense Input Loop#2. This pin is connected directly to the VR output voltage of Loop #2
at the load and should be routed differentially with VRTN_L2.
Input Supply Voltage. 3.3V supply to power the device.
Resistor Current Sense Minus Loop#2. This pin is connected to an external network to set the
load line slope, bandwidth and temperature compensation for Loop #2.
Resistor Current Sense Positive Loop#2. This pin is connected to an external network to set
the load line slope, bandwidth and temperature compensation for Loop #2.
Loop 2 Phase 1 Current Sense Input. Loop 2 Phase 1 sensed current input (+). Short to pin 38
if not used.
Loop 2 Phase 1 Current Sense Return Input. Loop 2 Phase 1 sensed current input return (-).
Short to pin 37 if not used.
Do Not Connect.
Phase 3 Current Sense Input. Phase 3 sensed current input (+). Short to pin 44 if not used.
Phase 3 Current Sense Return Input. Phase 3 sensed current input return (-). Short to pin 43 if
not used.
Phase 2 Current Sense Input. Phase 2 sensed current input (+). Short to pin 46 if not used.
Phase 2 Current Sense Return Input. Phase 2 sensed current input return (-). Short to pin 45 if
not used.
Phase 1 Current Sense Input. Phase 1 sensed current input (+)
Phase 1 Current Sense Return Input. Phase 1 sensed current input return (-)
Ground. Ground reference for the IC. The large metal pad on the bottom must be connected to
Ground.
Note 1: A - Analog; D – Digital; [I] – Input; [O] – Output; [B] – Bi-directional; [P] - Power
  6 www.irf.com   |  © 2014 International Rectifier
July 24, 2014  |  V1.00

6 Page



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