IRDCIP1206-B International Rectifier, IRDCIP1206-B Datasheet

no-image

IRDCIP1206-B

Manufacturer Part Number
IRDCIP1206-B
Description
BOARD DEMO SYNC BUCK CONVETER
Manufacturer
International Rectifier
Datasheet

Specifications of IRDCIP1206-B

Package
Design Kit
Featured Part
iP1206
Input Voltage (v)
7.5V - 14.5V
Output Voltage (v)
0.8V - 5.5V Dual
Total Current
30A
Phases
2
Switching Frequency (khz)
300kHz
R
IRDCiP1206-B: 300 kHz, Dual Output, Synchronous
Buck Converter using iP1206
Overview
This reference design is capable of delivering a continuous current of 30A; (i.e.
15A max. per output channel) at an ambient temperature of 45ºC and with
200LFM of airflow. Figures 1–24 provide performance graphs, thermal images,
and waveforms. Figures 25–35, and Table 1 are provided to engineers as
design references for implementing an iP1206 solution.
installed on this demoboard were selected based on operation at an input
voltage of 12V and at a switching frequency of 300 kHz. Changes from these
set points may require optimizing the control loop and/or adjusting the values of
input/output filters in order to meet the user’s specific application requirements.
Refer to the iP1206 datasheet User Design Guidelines section for more
information.
Note: The 16-pin connector (CON1) is used only for production test purposes
and should not be used for evaluation of this demoboard.
Demoboard Quick Start Guide
Initial Settings:
VOUT
formula:
VOUT
formula:
The switching frequency is set to 300 kHz, but can be adjusted by changing the value of R
relationship between R
Power Up Procedure:
1. Apply input voltage across VIN and PGND.
2. Apply load across VOUT
3. Adjust load to desired level. See recommendations below.
Simultaneous and Ratiometric Startup and Shutdown:
Refer to the iP1206PbF datasheet for instructions on using the IRDCiP1206-B board outputs in either ratiometric or simultaneous
operation mode.
R
International Rectifier • 233 Kansas Street, El Segundo, CA 90245 USA
1
2
is set to 2.5V, but can be adjusted from 0.8V to 5.5V by changing the values of R5 and R6 according to the following
is set to 1.5V, but can be adjusted from 0.8V to 5.5V by changing the values of R5 and R6 according to the following
E
E
F
F
E
E
R
R
T
and the switching frequency.
E
E
1
pads and PGND pads and across VOUT
R5 = R6 = (10.0k * 0.8) / (VOUT - 0.8)
R15 = R16 = (10.0k * 0.8) / (VOUT - 0.8)
N
N
C
C
E
E
D
D
E
E
S
S
The components
I
I
G
G
2
pads and PGND pads
N
N
IRDCiP1206-B
T
. The graph in Figure 26 shows the

Related parts for IRDCIP1206-B

IRDCIP1206-B Summary of contents

Page 1

... Apply load across VOUT pads and PGND pads and across VOUT 1 3. Adjust load to desired level. See recommendations below. Simultaneous and Ratiometric Startup and Shutdown: Refer to the iP1206PbF datasheet for instructions on using the IRDCiP1206-B board outputs in either ratiometric or simultaneous operation mode ...

Page 2

... IRDCiP1206-B_______ IRDCiP1206-B Recommended Operating Conditions (Refer to the iP1206 datasheet for maximum operating conditions) Input voltage: 7.5V – 14.5V Output voltage (VOUT ) 0.8 – 5.5V VOUT 1, 2 Switching Freq: 300kHz Output current: This reference design is capable of delivering a continuous current of 30A (15A per output channel ambient temperature of 45º ...

Page 3

... Vo1 100.25% 100.00% 99.75% 99.50% 99.25 Fig. 3: Output Voltage Regulation vs. Current Vin = 12V Vo1 = 2.5V Iout1 = 15A Fsw = 300KHz No Airflow __IRDCiP1206-B Vo2 Output Current (A) Fc=75kHz Fc=75kHz GM=10dB GM=10dB Fig. 4: Bode Plot of Vo1 (2.5V PM=57 PM=57 www.irf.com 3 ...

Page 4

... IRDCiP1206-B_______ Vin = 12V Vo2 = 1.5V Iout2 = 15A Fsw = 300KHz No Airflow Fig. 6: Thermograph (No Heatsink) www.irf.com Fc=45kHz Fc=45kHz GM=16dB GM=16dB Fig. 5: Bode Plot of Vo2 (1.5V) _____ o o PM=54 PM=54 Conditions: Vin = 12V Vout1 = 2.5V Vout2 = 1.5V Iout1 = Iout2 = 15A Fsw = 300kHz Ambient Temp. = 45ºC ...

Page 5

... Vin = 12V Vo1 = 2.5V Iout = 15A Fsw = 300KHz No Airflow Fig. 8: Vo1 Power Down Sequence __IRDCiP1206-B Fig.7: Vo1 Power Up Sequence Vin = 12V Vo1 = 2.5V Iout = 15A Fsw = 300KHz No Airflow www.irf.com 5 ...

Page 6

... IRDCiP1206-B_______ Vin = 12V Vo2 = 1.5V Iout = 15A Fsw = 300KHz No Airflow Fig.9: Vo2 Power Up Sequence Fig.10: Vo2 Power Down Sequence www.irf.com _____ Vin = 12V Vo2 = 1.5V Iout = 15A Fsw = 300KHz No Airflow 6 ...

Page 7

... Fig. 11: Power Down when Enable is pulled low Fig. 12: Switch Node Waveforms __IRDCiP1206-B Vin = 12V Vo1 = 2.5V Vo2 = 1.5V Iout1 = 15A = Iout2 Fsw = 300KHz Vin = 12V Vo1 = 2.5V Vo2 = 1.5V Iout1 = 15A = Iout2 Fsw = 300KHz www.irf.com 7 ...

Page 8

... IRDCiP1206-B_______ Fig. 13: Over Voltage Protection Fig. 14: Short Circuit Protection www.irf.com _____ Vin = 12V Vo = 2.5V Iout = 15A Fsw = 300KHz No Airflow Vin = 12V Vo = 2.5V Iout = 15A Fsw = 300KHz No Airflow 8 ...

Page 9

... Fig. 15: I Transient Step-Up 50% - 75% out1 80mV Vin = 12V Vo1 = 2.5V Iout = 15A Fsw = 300KHz No Airflow Fig. 17: I Transient Step-Up 50% - 100% out1 __IRDCiP1206-B 43mV Vin = 12V Vo1 = 2.5V Iout = 15A Fsw = 300KHz No Airflow Fig. 16: I Transient Step-Down 75% - 50% out1 71mV Vin = 12V Vo1 = 2 ...

Page 10

... IRDCiP1206-B_______ 42mV Vin = 12V Vo1 = 1.5V Iout = 15A Fsw = 300KHz No Airflow Fig. 19: I Transient Step-Up 50% - 75% out2 72mV Vin = 12V Vo1 = 1.5V Iout = 15A Fsw = 300KHz No Airflow Fig. 21: I Transient Step-Up 50% - 100% out2 www.irf.com 34mV Vin = 12V Vo1 = 1.5V Iout = 15A ...

Page 11

... Fig. 23 Ratiometric Startup and Shutdown of Vo1 and Vo2 Fig. 24 Simultaneous Startup and Shutdown of Vo1 and Vo2 __IRDCiP1206-B www.irf.com 11 ...

Page 12

... IRDCiP1206-B_______ Adjusting the Over-Current Limit ROCx is the resistor used to adjust the over-current trip point. The trip point corresponds to the peak inductor current indicated on the x-axis of Fig. 21. (Note: The trip point will be higher than expected if the reference board is cool and is being used for short circuit testing ...

Page 13

... Fig. 27: Component Placement Top Layer Fig. 29: Top Copper Layer __IRDCiP1206-B Fig. 28: Component Placement Bottom Layer st Fig. 30: 1 Mid Copper Layer www.irf.com 13 ...

Page 14

... IRDCiP1206-B_______ nd Fig. 31: 2 Mid Copper Layer th Fig. 33: 4 Mid Copper Layer www.irf.com rd Fig. 32: 3 Mid Copper Layer Fig. 34: Bottom Copper Layer _____ 14 ...

Page 15

... ON DH_ NC 32 VIN2 3 VIN1 16 VCL 10 VCH 9 __IRDCiP1206-B PGND PGND PGND PGND AGND www.irf.com ...

Page 16

... IRDCiP1206-B_______ www.irf.com _____ 16 ...

Page 17

... IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 __IRDCiP1206-B TAC Fax: (310) 252-7903 www.irf.com 17 ...

Related keywords