IR3553MTRPBF International Rectifier, IR3553MTRPBF Datasheet - Page 11

• Manufacturer Part Number: IR3553MTRPBF
• Description: The IR3553 integrated PowIRstage is a synchronous buck gate driver IC with co‐packed control and synchronous MOSFETs and Schottky diode.
• Manufacturer: International Rectifier

Specifications of IR3553MTRPBF

• Package: PQFN / 4 x 6
• Iout (a): 40
• Switch Freq (khz): up to 1.0MHz
• Input Range (v): 4.5 - 15
• Output Range (v): 0.25 - (VCC -2.5)

TYPICAL OPERATING CHARACTERISTICS (CONTINUED)
Circuit of Figure 32, V
8-layer PCB board of 3.7” (L) x 2.6” (W), no PWM controller loss, no inductor loss, unless specified otherwise.
Figure 20: PWM Tri-state Delays, I
Figure 21: PWM Tri-state Delays, I
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Figure 19: Body-Braking® Delays
March 12, 2012 | FINAL DATASHEET
IN
=12V, V
40ns/div
100ns/div
100ns/div
OUT
=1.2V, ƒ
SW
OUT
OUT
= 400kHz, L=150nH (0.29mΩ), VCC=7V, T
= 10A
= 10A
BBRK#
5V/div
PWM
5V/div
GATEL
5V/div
40A Integrated PowIRstage®
PWM
2V/div
SW
5V/div
PWM
2V/div
SW
5V/div
Figure 24: Diode Emulation Setup through BBRK# Capacitor
Figure 22: Diode Emulation Mode, I
Figure 23: Body-Braking® Mode, I
AMBIENT
400ns/div
400ns/div
2ms/div
= 25°C, no heat sink, no air flow,
IR3553
OUT
OUT
= 3A
= 3A
PWM
2V/div
SW
5V/div
GATEL
10V/div
PWM
2V/div
SW
5V/div
GAETL
10V/div
VCC
2V/div
BBRK#
1V/div
SW
10V/div