IR3551MTRPBF International Rectifier, IR3551MTRPBF Datasheet - Page 6

• 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)

ELECTRICAL SPECIFICATIONS
The electrical characteristics involve the spread of values guaranteed within the recommended operating conditions.
Typical values represent the median values, which are related to 25°C.
RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN
ELECTRICAL CHARACTERISTICS
Efficiency
PWM Comparator
Current Sense Amplifier
IR3551 Peak Efficiency
PWM Input High Threshold
PWM Input Low Threshold
PWM Tri-state Float Voltage
Hysteresis
Tri-state Propagation Delay
PWM Sink Impedance
PWM Source Impedance
Internal Pull up Voltage
Minimum Pulse Width
CSIN+/- Bias Current
CSIN+/- Bias Current Mismatch
Calibrated Input Offset Voltage
Gain
Unity Gain Bandwidth
6
PARAMETER
Recommended VIN Range
Recommended VCC Range
Recommended REFIN Range
Recommended Switching Frequency
Recommended Operating Junction Temperature
PARAMETER
March 12, 2012 | FINAL DATASHEET
Note 1
η
V
V
V
V
t
R
R
V
t
I
I
V
G
f
PWM_DELAY
PWM_MIN
CSIN_BIAS
CSIN_BIASMM
PWM_HIGH
PWM_LOW
PWM_TRI
PWM_HYS
PWM_SINK
PWM_SOURCE
PWM_PULLUP
BW
CSIN_OFFSET
CS
SYMBOL
50A Integrated PowIRstage®
Note 2. See Figure 2.
Note 3. See Figure 7.
PWM Tri-state to High
PWM Tri-state to Low
PWM Floating
Active to Tri-state or Tri-
state to Active, Note 1
PWM Tri-state to Low
transition to GATEL >1V
PWM Tri-state to High
transition to GATEH >1V
VCC > UVLO
Note 1
Self-calibrated offset,
0.5V ≤ V(REFIN) ≤ 2.25V
0.5V ≤ V(REFIN) ≤ 2.25V
C(IOUT) = 10pF. Measure at
IOUT. Note 1
CONDITIONS
SYMBOL
REFIN
VCC
VIN
ƒ
T
SW
J
MIN
0.25
200
4.5
4.5
0
30.0
-100
MIN
3.67
3.67
-50
2.5
1.2
4.8
65
VCC - 2.5
MAX
1000
125
15
7
±450
32.5
94.0
93.4
1.65
TYP
5.1
5.1
3.3
6.8
76
38
18
41
0
0
IR3551
UNIT
kHz
°C
V
V
V
MAX
8.70
8.70
35.0
100
100
0.8
2.1
8.8
58
50
UNIT
MHz
V/V
mV
kΩ
kΩ
nA
nA
µV
ns
ns
ns
%
%
V
V
V
V