Details, datasheet, quote on part number: AN8783SB
CategoryPower Management
Description4-channel Linear Driver ic For Cd/cd-rom Drive
CompanyPanasonic Industrial Company/Electronic Components
DatasheetDownload AN8783SB datasheet
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Features, Applications

The AN8783SB employs one channel of power op-amp. system and three channels of H-bridge system. Two channels out of three channels of Hbridge method are a current feedback system. So this IC is optimum for driving an actuator and a motor of CD/CD-ROM drive. It comes with a surface mount package which excels in a heat radiation characteristic.

Little phase delay due to current feedback system (2-channel for actuator) 4 modes of forward, reverse rotations, braking and standby can be selected from channels for loading motor (H-bridge method) by a digital signal from a microcomputer. Wide output dynamic range regardless of reference voltage of the system Setting the input level of a driver by an external resistor is possible. PC (power cut) function built-in (common for ch. 1, ch. 3 and ch. 4) Thermal shut-down circuit built-in (with hysteresis)

ch. 1 Direction det. current amp. ch. 2 Control logic ch. 3 ch. 4

Pin No. Description PC1 (power cut) input pin Driver-3 phase compensation pin Driver-3 input pin Driver-4 input pin Driver-3 feedback pin Driver-4 feedback pin Driver-4 phase compensation pin Driver-4 current feedback power supply pin Driver-4 reverse rotation output pin Driver-4 forward rotation output pin Driver-2, driver-4 GND pin Driver-3 reverse rotation output pin Driver-3 current feedback power supply pin Driver-3 forward rotation output pin Driver-2 forward rotation output pin Pin No. Fin Description Driver-2 power supply pin Driver-2 reverse rotation output pin Driver-1 reverse rotation output pin Driver-1 GND pin Driver-1 forward rotation output pin Driver-1 power supply pin VREF input pin Driver-1 input pin Driver-2 input pin Driver-2 output voltage adjustment pin PC2 (power cut) input pin N.C. Power supply pin GND pin

Parameter Supply voltage Supply current Power dissipation

Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for 25C. *2: Referring to "s Application Circuit Example", use within the range mW or less = 85C, following the allowable power dissipation characteristic curve of "s Application Notes".

Parameter Supply voltage Symbol SVCC , PVC2 Range to 14 Unit V

Parameter Current consumption 1 with no signal Current consumption 2 with no signal Current consumption 3 with no signal Driver 1 Output offset voltage Gain Relative gain Limit voltage Limit voltage Driver 2 Output voltage 1 Output voltage 1 Output voltage 2 Output voltage 1 V, RAS 4 V, RAS 1 V, RAS 4 V, RAS dB V Symbol ISVCC IVCC1 IVCC2 Conditions 0 A Min Typ 4 1 Max 6 4 Unit mA


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