SC4808B-2MSTRT datasheet(7/28 Pages) SEMTECH

номер детали	SC4808B-2MSTRT

подробное описание детали	High Performance Dual Ended PWM Controller

PDF	28 Pages

Scroll/Zoom	100%

производитель	SEMTECH [Semtech Corporation]

домашняя страница	http://www.semtech.com

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 2006 Semtech Corp.

www.semtech.com

SC4808B-2

POWER MANAGEMENT

4.200

4.250

4.300

4.350

4.400

4.450

4.500

-40

-25

-10

110

125

Ta (°C)

Vcc UVLO (Rising)

Vcc UVLO (Falling)

3.60

3.65

3.70

3.75

3.80

3.85

3.90

-40

-25

-10

110

125

Ta (°C)

Operating Iq, Vcc = 5V

Operating Iq, Vcc = 5.25V

SC4808B-2 Typical Characteristics

(SC4808B-2A)

Iq (start up) vs. Temperature

Iq (operating) vs. Temperature

Reference vs. Temperature

FB to CS Offset vs. Temperature

Current sense vs. Temperature

Vcc UVLO vs. Temperature

400

500

600

700

800

900

1000

1100

-40

-25

-10

110

125

Ta (°C)

Max Current Sense Signal

Over Current Signal

1.60

1.61

1.62

1.63

1.64

1.65

1.66

1.67

1.68

1.69

-40

-25

-10

110

125

Ta (°C)

FB to CS Offset

3.16

3.17

3.18

3.19

3.2

3.21

3.22

-40

-25

-10

110

125

Ta (°C)

Reference, Vcc = 5V

70.0

75.0

80.0

85.0

90.0

95.0

100.0

-40

-25

-10

110

125

Ta (°C)

Start up Iq, Vcc = 4V

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