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PDF IR36021 Data sheet ( Hoja de datos )
| Número de pieza | IR36021 | |
| Descripción | DIGITAL POL BUCK CONTROLLER | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de IR36021 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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DIGITAL POL BUCK CONTROLLER with I2C AND PMBus
Interface
IR36021
FEATURES
Dual output (2+1) Digital Controller with proprietary
control algorithm
Two‐phase operation available on Output #1 for
powering very high current ASICs and DSPs
I2C /PMBus interface for configuration & telemetry
with pin programmable address
Operating ambient temperature: ‐400C to 850C
3.3V bias operation
Independent loop switching frequencies from 200kHz
to 2MHz per phase
IR Efficiency Shaping with Dynamic Phase Control
(DPC)
Active Diode Emulation modes for light load efficiency
IR Adaptive Transient Algorithm (ATA) minimizes
output bulk capacitors and system cost
Independent OVP, UVP, OCP for each output
Thermal Protection (OTP) and VRHOT# flag
Multiple time programmable (MTP) memory for
custom configuration
Flexible I2C bus security features
Pb‐Free, RoHS, 32‐pin 5mm X 5mm QFN package
BASIC APPLICATION
DESCRIPTION
The IR36021 is a dual‐loop digital multi‐phase buck
controller designed for point of load applications.
The IR36021 include Efficiency Shaping Technology to
deliver exceptional efficiency at minimum cost across the
entire load range. 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 Intuitive Power Designer (IPD) GUI and
stored in on‐chip MTP.
The IR36021 provides extensive OVP, UVP, OCP and OTP
fault protection and includes thermistor based temperature
sensing with VRHOT signal.
The IR36021 includes numerous features like register
diagnostics for fast design cycles and platform
differentiation, truly simplifying VRD design and enabling
fastest time‐to‐market (TTM) with “set‐and‐forget”
methodology.
APPLICATIONS
Embedded Telecom Systems
Netcom Applications
Server Application
Distributed Point of Load Power Architectures
PIN DIAGRAM
Figure 1: IR36021 Basic Application Circuit
1 February 27, 2013 | Rev 3.5
Figure 2: IR36021 Package Top View
Free Datasheet http://www.datasheet4u.com/
1 page  
DIGITAL POL BUCK CONTROLLER with I2C AND PMBus
Interface
IR36021
Rseries
RTh RCS
Rseries
RCSP1
CCS
RCSM1
+3.3V
VCC
5V
PWM1a
ISEN1a
IRTN1a
5V
VSEN1
VRTN1
RRES
TSEN
RTh2
PWM1b
ISEN1b
IRTN1b
V18A
Vin
V
RVIN_1
RVIN_2
From
System
VINSEN
VRHOT_ICRIT#
PGood1
PGood2
EN1
EN2
PWM2
ISEN2
IRTN2
VSEN2
VRTN2
SM_ALERT#
SM_DIO
SM_CLK
ADDR_PROT
Rseries
RCS
Rseries
RCSP2
CCS
RCSM2
GND
12V
Vcc
Vdrv
PWM
GND
Boot
Switch
12V
Vcc
Vdrv
PWM
GND
Boot
Switch
Vo1
L
O
A
D
Figure 6: Dual‐loop VR using IR36021 Controller and IR PowerStage in 2+0 Configuration
5 February 27, 2013 | Rev 3.5
Free Datasheet http://www.datasheet4u.com/
5 Page 
DIGITAL POL BUCK CONTROLLER with I2C AND PMBus
Interface
IR36021
PARAMETER
SYMBOL
PWM Frequency Range1
PWM frequency step size1
PWM resolution1
CONDITIONS
NTC Temperature Sense
TSEN1
Output Current
Accuracy1
For TSEN = 0 to 1.2V
at 100°C (ideal NTC)
Digital Inputs – Low Vth
Type 1
EN, VR_HOT
(during PoR)
Input High Voltage
Input Low Voltage
Input Leakage Current
Vpad = 0 to 2V
Digital inputs ‐ LVTTL
SM_DIO,
SM_CLK,
ADDR_PROT
Input voltage high
Input voltage low
Input leakage
Vpad=0 to 3.6V
Remote voltage sense inputs
VSEN, VRTN,
VSEN_L2,
VRTN_L2
VSENx Input current
Vout = 0.5V to 1.5V
VRTNx Input current
Differential Input voltage
range1
VRTN Input CM voltage1
VRTN= ±100mV
Remote current sense inputs ISEN/IRTNx
Voltage range1
Analog Address/Level Inputs
Output Current1
ADDR_PROT 16 levels
Vpad = 0 to 1.2V
Open‐Drain outputs ‐ 4mA
drive
PGood1,
PGood2,
SM_DIO,
SM_ALERT
Output low voltage
4mA
Output leakage
Vpad=0 to 3.6V
Open‐Drain outputs ‐ 20mA
drive
Output low voltage 1
On resistance1
VRHOT_ICRIT#
I=20mA
I=20mA
Tri‐state leakage
Ileak
Vpad=0 to 3.6V
MIN
96
96
0.7
‐
‐
TYP
200‐2000
0.83‐83
MAX
160
UNIT
kHz
kHz
ps
100 104 µA
104 °C
‐ ‐ V
‐
0.35
V
‐ ±5 µA
2.1
0.8
±1
‐250 to +250
‐500
0 to 2.6
‐100 to 100
‐0.1 to 2.7
96 100 104
V
V
µA
uA
uA
V
mV
V
µA
0.3 V
±5 µA
0.26
V
7 9 13 Ω
±5 µA
11 February 27, 2013 | Rev 3.5
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet IR36021.PDF ] | |
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