AN8737SB Ver la hoja de datos (PDF) - Panasonic Corporation

Número de pieza

componentes Descripción

Fabricante

AN8737SB

3-channel driver IC for optical disk drive

Panasonic Corporation 

ICs for Optical Disk Drive

AN8737SB

s Electrical Characteristics at SVCC = 12 V, PVCC1 = 5 V, PVCC2 = 5 V, RL = 8 Ω, VREF = 1.65 V,

VSB = VPC1 = VPC2 = 3.3 V, VIN1 = VIN2 = VIN3 = 1.65 V, Ta = 25°C (continued)

• Design reference data (continued)

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter

Symbol

Conditions

Min Typ Max Unit

Thermal protection circuit (continued)

Operating temperature difference bet. ∆TTF

thermal protection/temperature flag

 10  °C

Temperature flag output high

value

VFLH SVCC = 12 V



5



V

Supply voltage detection hysteresis ∆VHD

width

 0.2 

V

s Usage Notes

1. Use SVCC at the maximum potential.

Otherwise it will cause operation error.

2. Do not use PVCC1 and PVCC2 at 2 V or less, or at the high impedance.

3. Driver 1, driver 2 gain setting

(Use a resistor of sufficient power dissipation for RS .)

RE

CE

Input

RIN pin 3 or 2 500 Ω

VIN

RFB

VREF

6 or 27 500 Ω

200 Ω

Forward

rotation pin

× 5 12 or 15

× 5 9 or 14

Pwr. amp.

VREF

RL

4Ω

RS

0.5 Ω

VREF

5 or 28

Reverse

rotation pin

4. On the mode of mute:

SB = PC1 = high

SB = PC1 = low or Hi-Z

PC2 = high

PC2 = low or Hi-Z



Ch. 1, Ch. 2

Active

Active

All mute,

Ch. 3

Active

Mute

power save

Never fail to input the same signal into SB pin (pin 24) and PC1 pin (pin 11).

5

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