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IRDCIP2003A-C の電気的特性と機能

IRDCIP2003A-CのメーカーはInternational Rectifierです、この部品の機能は「Synchronous Buck Converter Using iP2003A」です。


製品の詳細 ( Datasheet PDF )

部品番号 IRDCIP2003A-C
部品説明 Synchronous Buck Converter Using iP2003A
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IRDCIP2003A-C Datasheet, IRDCIP2003A-C PDF,ピン配置, 機能
www.DataSheet4U.com
R DEFERENCE ESIGN IRDCiP2003A-C
International Rectifier 233 Kansas Street, El Segundo, CA 90245 USA
IRDCiP2003A-C: 1MHz, 160A, Synchronous Buck
Converter Using iP2003A
Overview
This reference design is capable of delivering up to a current of
160A with the enclosed heatsink attached at an ambient
temperature of 60ºC with 400LFM or an ambient temperature of
45ºC with 200LFM of airflow. Performance graphs and waveforms
are provided in figures 1–9. The figures and table in pages 5 – 8
are provided as a reference design to enable engineers to very
quickly and easily design a 4-phase converter. Refer to the data
sheet for the controller listed in the bill of materials in order to
optimize this design to your specific requirements. A variety of other
controllers may also be used, but the design will require layout and
control circuit modifications.
Demoboard Quick Start Guide
Initial Settings:
The output is set to 1.3V, but can be adjusted from 0.8V to 3.3V by changing the voltage divider values of R3 and R32 according
to the following formula:
R3 = R32 = (24.9k x 0.8) / (VOUT - 0.8)
The switching frequency per phase is set to 1MHz with the frequency set resistor R4. This creates an effective output frequency of
4MHz. The graph in figure 11 shows the relationship between R4 and the switching frequency per phase. The frequency may be
adjusted by changing R4 as indicated; however, extreme changes from the 1MHz set point may require redesigning the control
loop and adjusting the values of input and output capacitors. Refer to the SOA graph in the iP2003A datasheet for maximum
operating current at different conditions.
Procedure for Connecting and Powering Up Demoboard:
1. Apply input voltage across (+12V) across VIN and PGND.
2. Apply load across VOUT pads and PGND pads.
3. Adjust load to desired level. See recommendations below.
IRDCiP2003A-C Recommended Operating Conditions
(refer to the iP2003A datasheet for maximum operating conditions)
Input voltage:
5V - 12V1
Output voltage:
Switching Freq:
0.8 - 3.3V
1MHz per phase, 4MHz effective output frequency.
Output current:
This reference design is capable of delivering up to 160A with the enclosed heatsink attached, at an
ambient temperature of 60ºC with 400LFM of airflow, or an ambient temperature of 45ºC with 200LFM of
airflow.
1Note: If Vin = 5V, then connect Vin to test point TP3 and Terminal T1 and remove jumper J1. Refer to schematic for details.
Additionally, the threshold of the POR circuit should be adjusted to allow the supply to sequence properly.
12/03/04

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IRDCIP2003A-C pdf, ピン配列
_____________
__IRDCiP2003A-C
100.0%
99.8%
99.6%
99.4%
99.2%
99.0%
98.8%
98.6%
98.4%
98.2%
98.0%
0
VIN = 12V
VOUT = 1.3V
fSW = 1MHz
TA = 25°C
20 40 60 80 100 120 140 160
Output Current (A)
Fig. 6: Output Voltage Accuracy vs. Current
VIN = 12V
VOUT = 1.3V
IOUT = 160A
fSW = 1MHz
TA = 25°C
Ch. 1: VIN
2V/div
Ch. 1: VIN
2V/div
VIN = 12V
VOUT = 1.3V
IOUT = 160A
fSW = 1MHz
TA = 25°C
Ch. 2: VOUT
0.5V/div
Fig. 7: Power Up Waveform
Ch. 1: VOUT
1V/div
Short
circuit at
start-up
Ch. 2: VOUT
0.5V/div
Fig. 8: Power Down Waveform
Hiccups
until short
circuit is
removed
Ch. 2: IOUT
50A/div
VIN = 12V
VOUT = 1.3V
fSW = 1MHz
TA = 25°C
Fig. 9: Short Circuit Condition Waveform
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IRDCIP2003A-C 電子部品, 半導体
IRDCiP2003A-C_ ____
_____
Fig. 13: Component Placement Top Layer
Heatsink Notes:
1) Always use the supplied Berquist Gap PadTM A3000 thermal interface material with heatsink.
2) Torque 5 x #2-56 machine screws to 15 +/-1 in-oz.
3) The heatsink is optimized for 400 LFM with unconfined airflow. Performance will improve with more airflow or confined
airflow.
4) Airflow direction should be parallel to fins for maximum performance.
Fig. 14: Heatsink Specification
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部品番号部品説明メーカ
IRDCIP2003A-C

Synchronous Buck Converter Using iP2003A

International Rectifier
International Rectifier


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