ELM901FXA datasheet(8/11 Pages) ELM-TECH

Part #	ELM901FXA

Description	Charge Pump LED Driver

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Manufacturer	ELM-TECH [ELM Technology Corporation]

Direct Link	http://www.elm-tech.com

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8

Parameter

Symbol

Condition

Min.

Typ.

Max. Unit

Short protection circuit

Iled limit when ISET is short

Iled

(short)

ISET1&2 turn Iled to be OFF

for short protection, Vin=3.9V,

Vled=1.0V, 2x operation

1.5

A

VO short protection detection

voltage

Vo

(short)

Iled is OFF when short protection

is activated

0.45

0.60

0.95

V

VO short current

Ishort Vin=3.6V

30

mA

Thermal protection circuit

OHP Iled is OFF when thermal

protection circuit is activated

150

°C

Fail safe circuit

Fail safe set range

Tfs

(range)

* Fail safe function is OFF when

FS-VIN is short or open.

0.2

1.0

s

Fail safe time1

Tfs1

0.80

1.00

1.20

s

Fail safe time2

Tfs2

0.16

0.20

0.24

s

Fail safe time3

Tfs3

0.40

0.50

0.60

s

Fail safe current

Ifs

10

15

20

μA

FS threshold voltage1

Vfs1

0.120 0.150 0.180

V

FS threshold voltage2

Vfs2

0.405 0.450 0.495

V

FS threshold voltage3

Vfs3

1.080 1.220 1.360

V

ELM901FxA 1A 2x Charge Pump LED Driver

Parameter

Condition

EN logic & LED current

EN logic

EN1

EN2

* EN1 & EN2 will be in standby mode when being

pulled down to be open.

Standby(output OFF)

0

Low current

1

0

High current

0

1

Low+High current

1

■Marking

11 -

• QFN16-4x4 package : ELM901FAA

• QFN16-3x3 package : ELM901FBA

ELM

bc

901FAA

a

ELM

bc

901FBA

a

Mark

Content

ELM901FAA

Name

abc

(000 to 999)

Assembly lot No.

Mark

Content

ELM901FBA

Name

abc

(000 to 999)

Assembly lot No.

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ELM901FXA Datasheet(PDF) 8 Page - ELM Technology Corporation

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