FAN5232 datasheet(4/9 Pages) FAIRCHILD

部品番号	FAN5232

部品情報	Adjustable PWM Buck Controller for LCD PCs

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メーカー	FAIRCHILD [Fairchild Semiconductor]

ホームページ	http://www.fairchildsemi.com

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FAN5232

PRODUCT SPECIFICATION

4

REV. 1.1.1 10/7/02

Application Circuit

Figure 1. Application Circuit for LCD PC Main Power

Control and Signal Functions

Control Logic Low

600

mV

Control Logic High

2

V

Softstart Current

3

5

7

µA

Over-temperature Shutdown

150

°C

Over-temperature Hysteresis

25

°C

PWRGD Threshold

-14

-12

-9

%VO

PWRGD Saturation Voltage

Isink = 4mA

400

mV

PWRGD Leakage Current

VCC = 5.5V

1

µA

PWRGD Pulse Width for Trip

Low

→ High, High → Low

5

10

µsec

Electrical Speciﬁcations (Continued)

(VBATT = 16V, TA = -20 to 85°C, circuit of Figure 1, unless otherwise speciﬁed.)

Parameter

Conditions

Min.

Typ.

Max.

Units

1

2

3

4

5

6

7

14

13

12

11

10

9

8

U1

FAN5232

Vin = 16–22V

SDNADJ

3.3V-Always

C2

C3

Q1

Q2

R3

R2

R4

R5

R6

C6

L1

C5

D1

5V-Always

SDWN

PWRGD

12V @ 8A

C4

R1

5V

+

C1

+

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