HM5661 datasheet(4/13 Pages) HMSEMI

4 / 13 page

Electrical Characteristics

Typical value: Vcc=3.6V, TA = 25°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

IC Supply

VIN

Input operating range

2.7

5.5

UVLOHYST

UVLO hysteresis

0.22

IC quiescent current(non switching)

FB=0.4V

0.22

IC quiescent current(switching)

FB=0V

0.67

ISHDN

VIN pin shutdown current

EN=GND

0.1

µA

Boost Converter

FB pin accuracy

0.196

0.2

0.204

IFB

FB pin bias current

0.1

µA

RDS(ON)

NMOS on-resistance

0.4

Ω

ILX

LX pin leakage current

0.1

µA

ILIM

Peak NMOS current limit

1.0

1.3

1.6

FSW

Oscillator frequency

1.1

MHz

DMAX

Maximum duty cycle

OVP

Over voltage threshold,

Measured at VOUT pin

Start-up time

Logic Signal

VTH-L

Logic low threshold

0.4

VTH-H

Logic high threshold

1.4

TOFF

EN low to shutdown time

FEN

Dimming frequency

0.2

200

kHz

IC junction thermal shutdown threshold

146

°C

TJ-TH

IC junction thermal shutdown hysteresis

°C

Specifications subject to change without notice.

HM5661 Datasheet(PDF) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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