Rev. 1.30

3

June 26, 2015

HT7L4811

Electrical Characteristics

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Power Supply (VCC Pin)

—

—

18

—

V

—

—

10

—

V

UVLO Hysteresis

—

7

—

—

V

VCC OVP Trip Point

—

26

29

32

V

Start-up Current

Before turn-on,

—

10

20

μA

Quiescent Current

No switching

—

0.6

1

mA

Operating Current

@ 70kHz, Co=1nF

—

1.8

2.5

mA

Error Amplifier

Feedback Reference Voltage

Ta = 25°C

194

200

206

mV

Current Sense Comparator

Leading Edge Blanking Time

—

—

400

—

ns

Current Limit Threshold

—

—

1.3

—

V

Over Current Trip Point

—

—

0.9

—

V

Over Current Release Point

—

—

0.2

—

V

Zero Current Detector

Upper Clamp Voltage

—

3

—

V

Lower Clamp Voltage

—

-0.2

—

V

Positive-Going Edge

—

—

1.5

—

V

Negative-Going Edge

—

—

1

—

V

OVP Current on ZCD pin

—

270

300

330

μA

Blanking Time for OVP Detection

—

—

1

—

μs

Starter

Start Timer Period

—

—

40

—

μs

Minimum Off Time

—

—

4

—

μs

Over Temperature Protection

OTP

Over Temperature Trip Point

—

—

150

—

°C

Absolute Maximum Ratings

VCCsupplyvoltage................................ -0.3Vto33V

InputvoltagetoCSpin............................. -0.3Vto6V

OutputvoltageatCOMPpin.................... -0.3Vto6V

MaximumcurrentatZCDpin................3mA(source),

3mA(sink)

Maximumoperatingjunctiontemperature......... 150°C

Storagetemperaturerange.................. -55°Cto150°C

Recommended Operating Ranges

VCCsupplyvoltage...................................17Vto25V

Operatingjunctiontemperature..........−40°Cto125°C

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder″AbsoluteMaximumRatings″

maycausesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyond

thoselistedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffect

devicereliability.