7

IR3837MPbF

Rev 1.31

Electrical Specifications (continued)

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP

MAX

UNIT

FAULT PROTECTION

Fs=250kHz

10.4

11.8

13.2

Fs=500kHz

21.5

24.4

27.3

OCSET Current

Fs=1500kHz

68

77

86

µA

OC comp Offset Voltage

Note4

-6

0

+6

mV

SS off time

SS_Hiccup

4096

Cycles

Thermal Shutdown

Note4

140

Thermal Hysteresis

Note4

20

°C

UNDER VOLTAGE LOCKOUT

Vcc Rising Trip Level

4.06

4.26

4.46

Vcc Falling Trip Level

3.76

3.96

4.16

V

Enable-Start-Threshold

Enable_UVLO_Start

Supply ramping up

1.14

1.2

1.36

Enable-Stop-Threshold

Enable_UVLO_Stop

Supply ramping down

0.75

0.85

0.95

V

Enable leakage current

Ien

Enable=3.3V

10

µA

PGOOD

Fb Rising, Vref < 1.2V

115

%Vref

Power Good upper Threshold

VPG(upper)

Fb Rising, Vref > 1.5V

115

%Vp

Upper Threshold Delay

VPG(upper)_Dly

Fb Falling

256/Fs

s

Fb Rising, Vref < 1.2V

85

%Vref

Power Good lower Threshold

VPG(lower)

Fb Rising, Vref > 1.5V

85

%Vp

Lower Threshold Delay

VPG(lower)_Dly

Fb Rising

256/Fs

s

Soft Start Delay Time

Tdelay(Delay)

Note4

10

ms

PGood Voltage Low

PG(voltage)

0.5

V

Tracker Comparator Upper

Threshold

VPG(tracker_upper) Vp Rising, Vref > 1.5V

0.5

Tracker Comparator Lower

Threshold

VPG(tracker_lower)

Vp Falling, Vref > 1.5V

0.3

V

Tracker Comparator Delay

Tdelay(tracker)

Vp Rising, Vref > 1.5V

256/Fs

s

Note3: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.

Note4: Guaranteed by design but not tested in production

Products with prior date code of 1141 are qualified with MSL3 for Consumer market.