IR3551MTRPBF International Rectifier, IR3551MTRPBF Datasheet - Page 7

• Manufacturer Part Number: IR3551MTRPBF
• Description: The IR3551 integrated PowIRstage is a synchronous buck gate driver IC with co-packed control and synchronous MOSFETs and Schottky diode.
• Manufacturer: International Rectifier

Specifications of IR3551MTRPBF

• Package: PQFN / 5 x 6
• Iout (a): 50
• Switch Freq (khz): up to 1.0MHz
• Input Range (v): 4.5 - 15
• Output Range (v): 0.25 - (VCC -2.5)

Diode Emulation Mode Comparator
Digital Input – BBRK#
Digital Output – PHSFLT#
Phase Fault Detection
VCC Under Voltage Lockout
General
Thermal Flag
Bootstrap Diode
Slew Rate
Differential Input Range
Common Mode Input Range
Output Impedance (IOUT)
IOUT Sink Current
Input Offset Voltage
Leading Edge Blanking Time
Negative Current Time-Out
Input voltage high
Input voltage low
Internal Pull Up Resistance
Internal Pull Up Voltage
Output voltage high
Output voltage low
Input current
Control MOSFET Short Threshold
Synchronous MOSFET Short Threshold
Synchronous MOSFET Open Threshold
Propagation Delay
Rising Threshold
Falling Threshold
Forward Voltage
Start Threshold
Stop Threshold
Hysteresis
7
PARAMETER
March 12, 2012 | FINAL DATASHEET
V
V
I
V
V
V
t
T
S
V
V
R
I
V
t
t
V
V
R
V
PHASFLT#_IN
T
V
V
V
V
PROP
CS_SINK
FALL
BLANK
NC_TOUT
PHASFLT#_OH
PHASFLT#_OL
CM_SHORT
SM_SHORT
SM_OPEN
R
RISE
CS_OUT
BBRK#_PULLUP
D_IN
C_IN
IN_OFFSET
BBRK#_IH
BBRK#_IL
BBRK#_PULLUP
FWD
VCC_START
VCC_STOP
VCC_HYS
SYMBOL
50A Integrated PowIRstage®
0.8V ≤ V(REFIN) ≤ 2.25V,
Driving external 3 kΩ
Note 1
V(GATEL)>1V Starts Timer
PWM = Tri-State,
V(SW) ≤ -10mV
VCC > UVLO
VCC > UVLO
4mA
V(PHSFLT#) = 5.5V
Measure from SW to PGND
Measure from SW to PGND
Measure from SW to PGND
PWM High to Low Cycles
PHSFLT# Drives Low,
Note 1
Note 1
I(BOOST) = 30mA, VCC =
6.8V
CONDITIONS
-250
MIN
150
360
-10
0.5
2.0
3.0
0.2
-12
12
69
3.3
50
0
-200
200
TYP
150
150
200
160
135
0.3
520
0.8
3.3
3.3
3.7
3.4
62
-3
28
15
6
0
IR3551
MAX
VCC-
-150
VCC
200
200
338
300
250
2.5
1.1
0.8
920
4.1
3.8
0.4
25
46
3
1
UNIT
Cycle
V/µs
mV
mA
mV
mV
mV
mV
kΩ
µA
mV
ns
µs
°C
°C
V
Ω
V
V
V
V
V
V
V
V