IR3553_15 datasheet(7/22 Pages) IRF

7 / 22 page

July 16, 2014 | DATASHEET V3.3

IR3553

40A Integrated PowIRstage®

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Gain

GCS

0.5V ≤ V(REFIN) ≤ 2.25V,

-5mV ≤ *V(CSIN+) –V(CSIN-)]

≤ 25mV, 0°C ≤ TJ ≤ 125°C

30.0

32.5

35.0

V/V

0.5V ≤ V(REFIN) ≤ 2.25V,

-5mV ≤ *V(CSIN+) – V(CSIN-)]

≤ 25mV

30.0

33.0

36.0

V/V

0.8V ≤ V(REFIN) ≤ 2.25V,

-10mV ≤*V(CSIN+)–V(CSIN-)]

≤ 25mV

28.0

31.5

35.0

V/V

Unity Gain Bandwidth

fBW

C(IOUT) = 10pF. Measure at

IOUT. Note 1

4.8

6.8

8.8

MHz

Slew Rate

V/µs

Differential Input Range

VD_IN

0.8V ≤ V(REFIN) ≤ 2.25V,

-10

Common Mode Input Range

VC_IN

VCC-

2.5

Output Impedance (IOUT)

RCS_OUT

200

IOUT Sink Current

ICS_SINK

Driving external 3 kΩ

0.5

0.8

1.1

Diode Emulation Mode Comparator

Input Offset Voltage

VIN_OFFSET

Note 1

-12

-3

Leading Edge Blanking Time

tBLANK

V(GATEL)>1V Starts Timer

150

200

Negative Current Time-Out

tNC_TOUT

PWM = Tri-State,

V(SW) ≤ -10mV

µs

Digital Input – BBRK#

Input voltage high

VBBRK#_IH

2.0

Input voltage low

VBBRK#_IL

0.8

Internal Pull Up Resistance

RBBRK#_PULLUP

VCC > UVLO

200

338

kΩ

Internal Pull Up Voltage

VBBRK#_PULLUP

VCC > UVLO

3.3

Digital Output – PHSFLT#

Output voltage high

VPHASFLT#_OH

VCC

Output voltage low

VPHASFLT#_OL

4mA

150

300

Input current

IPHASFLT#_IN

V(PHSFLT#) = 5.5V

µA

Phase Fault Detection

Control MOSFET Short Threshold

VCM_SHORT

Measure from SW to PGND

3.3

Synchronous MOSFET Short Threshold

VSM_SHORT

Measure from SW to PGND

150

200

250

Synchronous MOSFET Open Threshold

VSM_OPEN

Measure from SW to PGND

-250

-200

-150

Propagation Delay

tPROP

PWM High to Low Cycles

Cycle

Thermal Flag

Rising Threshold

TRISE

PHSFLT# Drives Low,

Note 1

160

°C

Falling Threshold

TFALL

Note 1

135

°C

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