TDA7278 datasheet(1/15 Pages) STMICROELECTRONICS

No de pièce	TDA7278

Description	HIGH-EFFICIENCY CD ACTUATOR DRIVER

PDF	15 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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TDA7278

HIGH-EFFICIENCY CD ACTUATOR DRIVER

WIDE OPERATIVE SUPPLY RANGE (1.6 to

5V) LOW VOLTAGE OPERATION CAPABIL-

ITY

4 LOAD DRIVING VOLTAGES PWM REGU-

LATED (STEP DOWN FROM BATTERY)

LOW ON RESISTANCE H BRIDGES

(2 x 1.6

Ω MAX + 2 x 2.5Ω MAX) FOR:

– FOCUS AND TRACKING ACTUATORS

– SLEDGE AND SPINDLE MOTORS

SYNCHRONIZABLE SAWTOOTH OSCILLATOR

CONFIGURABLE DC/DC CONVERTER FOR

ADJUSTABLE MAIN POWER SUPPLY, WITH

LOW ON RESISTANCE (0.4

Ω MAX) SWITCH

GENERAL ENABLE INPUT

ADJUSTABLE WATCH DOG AND DELAYED

POWER ON RESET FUNCTIONS

ADJUSTABLE COMPARATORS FOR BAT-

TERY LOW AND BATTERY EMPTY DETEC-

TION

March 1997

PQFP44

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GND

FLIN 1

VBAT

H OUT 2A

HIN 2

FLIN 2

VHIGH

OUT

H OUT 1B

H OUT 1A

HIN 1

GND

H OUT 3A

HIN 3

ENABLE

SYNC

H OUT 3B

HIN 4

H OUT 4A

FLIN 4

FLIN 3

VBAT

D94AU112A

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PIN CONNECTION

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	TDA7273D	124Kb / 9P	SINGLE CHIP STEREO CASSETTE PLAYBACK SYSTEM May-1997
	TDA7274	108Kb / 10P	LOW-VOLTAGE DC MOTOR SPEED CONTROLLER Nov-1988
	TDA7275A	65Kb / 7P	MOTOR SPEED REGULATOR May-1997

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TDA7278 Fiches technique(PDF) 1 Page - STMicroelectronics

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