BD8201FM View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BD8201FM

Power Driver For CD/DVD Players

ROHM Semiconductor 

3/4

● APPLICATION CIRCUIT DIAGRAM

T.S.D : (Thermal shutdown)

Resistance unit : [Ω]

● Each terminal explanation

No

Pin Name

.

Description

No. Pin Name

Description

1 LDMUTE Loading driver MUTE terminal

2

LDIN Loading driver input terminal

3 LDCONT Loading driver Voltage setting terminal

4

MUTE BTL driver MUTE terminal (CH1,CH2,CH3)

5

BIAS Bias input terminal

6

LDGND GND terminal (Loading driver part)

7

LDVCC VCC terminal (Loading driver part)

8 PREGND (BTL driver，Pre part)

9 PREVCC (BTL driver，Pre part)

10

VCC1 VCC terminal (CH1 POWER part)

11

TEST Input terminal for TEST mode

12

GND

GND terminal (CH1 POWER part)

13 VO1(-) BTL driver (CH1) negative output terminal

14 VO1(+) BTL driver (CH1) positive output terminal

15

VO2(+) BTL driver (CH2) positive output terminal

16

VO2(-) BTL driver (CH2) negative output terminal

17

VO3(+) BTL driver (CH3) positive output terminal

18

VO3(-) BTL driver (CH3) negative output terminal

19

GND

GND terminal (CH2,CH3 POWER part)

20

GND

GND terminal (CH2,CH3 POWER part)

21

VCC2,3 Power supply voltage terminal (CH2,CH3 POWER part)

22

LDVCC VCC terminal (Loading driver part)

23

LDGND GND terminal (Loading driver part)

24

VIN1 CH1 input terminal

25

VIN2 CH2 input terminal

26

VIN3 CH3 input terminal

27 LDOUT(-) Loading driver negative output terminal

28 LDOUT(+) Loading driver positive output

Note: The positive or negative polarity of driver outputs is determined by the input polarity.

● Function Description

１． MUTE(Pin 4)

BTL driver part (CH1 to CH3) can be switched mode ON/OFF by inputting H lever (above 2.0V) or L level (below 0.5V) to this terminal.

２． LDMUTE(Pin 1)

Loading driver part can be switched ON/OFF by inputting H level (above 2.0V) or L level (below 0.5V) to this terminal.

３．BIAS dropping mute

Setting BIAS terminal (Pin5) voltage to 0.7 or below (Typ.) will activate mute function for BTL driver part (CH1 to CH3). Set BIAS terminal voltage to 1.1V or above.

REV. A

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