SC614 datasheet(22/25 Pages) SEMTECH

Part #	SC614

Description	Low Noise Backlight and Flash Driver With Serial Interface

PDF	25 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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22 / 25 page

POWER MANAGEMENT

SC614

United States Patent No. 6,504,422

www.semtech.com

Typical Characteristics

100

3.0

3.2

3.4

3.6

3.8

4.0

4.2

VBAT(V)

LED 5-7 = 20mA

LED VF = 3.276V

Battery Current (Sub-only)

100

150

200

250

3.0

3.2

3.4

3.6

3.8

4.0

4.2

LED 1-7 = 20mA

LED VF = 3.340V

VBAT(V)

Battery Current (Main and Sub)

100

3.0

3.2

3.4

3.6

3.8

4.0

4.2

Conversion Efficiency

Utilized Power Efficiency

VBAT(V)

LED 5-7 = 20mA

LED VF = 3.276V

Power Efﬁciency (Sub-only)

100

3.0

3.2

3.4

3.6

3.8

4.0

4.2

Conversion Efficiency

Utilized Power Efficiency

VBAT(V)

LED 1-7 = 20mA

LED VF = 3.340V

Power Efﬁciency (Main and Sub)

-3.5

-2.5

-1.5

-0.5

0.5

1.5

2.5

3.5

3.03.2

3.43.6

3.84.0

4.2

VBAT(V)

LED 1-7 = 20mA

Typical LED Matching (Main and Sub)

-6.0

-4.0

-2.0

0.0

2.0

4.0

6.0

3.0

3.2

3.4

3.6

3.8

4.0

4.2

Max

Min

VBAT(V)

Typical LED Accuracy (Main and Sub)

SC614 Datasheet(PDF) 22 Page - Semtech Corporation

SC614 Datasheet(HTML) 22 Page - Semtech Corporation

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