HARMAN KARDON HD750 Repair Manual

HD750
AN8814SB

Pin Descriptions
Pin No.DescriptionPin No.Description
1Base control pin for an external transistor15Motor driver-2 reverse rotation output pin
of 3.3 V regulator16Motor driver-2 forward rotation output pin
23.3 V regulator output monitor pin17Motor driver-1 reverse rotation output pin
3N.C. pin18Motor driver-1 forward rotation output pin
4Op-amp. output pin19Driver GND pin 1
5Op-amp. inverted input pin20Driver power supply pin 1
6Op-amp. non-inverted input pin211/2 PVCC output pin 1
7Power supply pin22VREF input pin
81/2 PVCC output pin 223Motor driver-1 input pin
9Driver power supply pin 224PC (power cut) input pin 1
10Driver GND pin 225Motor driver-2 input pin
11Motor driver-4 reverse rotation output pin26PC (power cut) input pin 2
12Motor driver-4 forward rotation output pin27Motor driver-3 input pin
13Motor driver-3 reverse rotation output pin28Motor driver-4 input pin
14Motor driver-3 forward rotation output pinFinGND pin

Absolute Maximum Ratings
ParameterSymbolRatingUnit
Supply voltageCCSV17V
Supply currentCCIçmA
*2
Power dissipation PD542mW
Operating ambient temperature *1Topr-30 to +85°C
*1
Storage temperature Tstg-55 to +150°C
Note)*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: Ta = 85°C.
Referring to " Application Circuit Example", following the allowable power dissipation characteristic curve of "

Application Notes".

Recommended Operating Range
ParameterSymbolRangeUnit
Supply voltageCC , PVSV CC1 , PVCC24.0 to 14V
28