BA5937AFP Rohm, BA5937AFP Datasheet

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BA5937AFP

Manufacturer Part Number
BA5937AFP
Description
4-channel BTL driver for CD players
Manufacturer
Rohm
Datasheet

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The BA5937AFP is a 4-channel BTL driver developed for use with CD players. In addition to internal drivers for the focus
coil, tracking coil, and sled motor, it also contains a driver for the loading motor.
FApplications
CD-ROM, CD players
FFeatures
1) Perfect for compact applications with the use of the
2) Internal thermal shutdown circuit.
3) Gain is adjustable with externally connected resistor.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
632
4-channel BTL driver for CD players
BA5937AFP
Optical disc ICs
HSOP 28-pin power package.
(For channels 1, 3, and 4.)
4) External mute pin enables the muting of the output
5) Power supply is divided into three systems
current for channels 1 and 4.
(V
V
CC
CC
3 = ch3).
1 = ch1 and ch4, V
CC
2 = ch2 and current source,

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BA5937AFP Summary of contents

Page 1

... Optical disc ICs 4-channel BTL driver for CD players BA5937AFP The BA5937AFP is a 4-channel BTL driver developed for use with CD players. In addition to internal drivers for the focus coil, tracking coil, and sled motor, it also contains a driver for the loading motor. FApplications CD-ROM, CD players ...

Page 2

... Optical disc ICs FBlock diagram FPin descriptions BA5937AFP 633 ...

Page 3

... Optical disc ICs FInput / output circuits 634 BA5937AFP ...

Page 4

... Optical disc ICs FElectrical characteristics (unless otherwise noted 25_C, V BA5937AFP = 8V VBIAS = 2.5V 635 ...

Page 5

... Optical disc ICs FMeasurement circuit 636 BA5937AFP ...

Page 6

... Optical disc ICs FApplication example BA5937AFP 637 ...

Page 7

... Optical disc ICs FOperation notes (1) Output mode switch for loading motor driver (V Note: Loading driver gain is 0dB. 638 = 8V) CC BA5937AFP ...

Page 8

... Also, by having the loading input (pin 19) open, the maximum output voltage with respect to the power supply voltage is output. (3) The BA5937AFP contains a thermal shutdown cir- cuit. When the chip temperature reaches 175_C (Typ.), the output current is muted. If the chip temperature then drops below 150_C (Typ ...

Page 9

... Optical disc ICs FElectrical characteristic curves FExternal dimensions (Units: mm) 640 BA5937AFP ...

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