AN8783SB 데이터 시트보기 (PDF) - Panasonic Corporation

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AN8783SB

4-channel linear driver IC for CD/CD-ROM drive

Panasonic Corporation 

AN8783SB

s Application Notes

• PD  Ta curves of HSOP042-P-0400

2.500

2.240

2.000

1.500

ICs for Compact Disc/CD-ROM Player

PD  Ta

Mounted on standard board

(glass epoxy:

75 mm × 75 mm × t1.6 mm)

Rth(j-a) = 55.8°C/W

1.042

1.000

0.500

Independent IC

without a heat sink

Rth(j-a) = 119.9°C/W

0.000

0

25

50

75

100 125

150

Ambient temperature Ta (°C)

s Application Circuit Example

RL1

RL2

V1

SVCC

RAS VIN2 R1

VREF

VCC1

RC1 R3 R4

C1

V3 V4

RS3 RS4

RC2

C2

VCC2

RL4

RL3

When the AN8783SB is use, take into account the following cautions and follow the power dissipation characteristic curve.

1. Load current IP1 flowing into load RL1 is supplied through pin 21.

IP1 = | V20 −V18 | /RL1

2. Load current IP2 flowing into load RL2 is supplied through pin 16.

IP2 = | V17 −V15 | /RL2

3. Load current IP3 flowing into load RL3 is supplied through pin 13 via the resistor RS3.

IP3 = | V14 −V12 | /RL3

4. Load current IP4 flowing into load RL4 is supplied through pin 8 via the resistor RS4.

IP4 = | V10 −V9 | /RL4

6

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