OQ80C300/E, OQ8819TB, OQ8844 Selling Leads, Datasheet
MFG:some stock Package Cooled:QFP D/C:original stock
OQ80C300/E, OQ8819TB, OQ8844 Datasheet download
Part Number: OQ80C300/E
MFG: some stock
Package Cooled: QFP
D/C: original stock
OQ80C300/E, OQ8819TB, OQ8844
- Table of contents:
Info of OQ80C300/E
Info of OQ8819TB
Info of OQ8844
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About OQ8844
PDF/DataSheet Download
Datasheet: OQ8844
File Size: 82638 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About OQ8844
PDF/DataSheet Download
Datasheet: OQ8844
File Size: 82638 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About OQ8844
PDF/DataSheet Download
Datasheet: OQ8844
File Size: 82638 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
OQ8844 General Description
The OQ8844 or Digital Servo Driver 2 (DSD2) consists of 1-bit class-D power drivers, which are specially designed for digital servo applications. Three such amplifiers are integrated in one chip, to drive the focus and radial actuators and the sledge motor of a compact disc optical system.
The main benefits of using this principle are its higher efficiency grade compared to conventional analog power amplifiers, its higher integration level, its differential output and the fact that only a few external components are needed. When using these digital power drivers in a digital servo application, the statement 'complete digital servo loop' becomes more realistic.
The main benefits of using this principle are its higher efficiency grade compared to conventional analog power amplifiers, its higher integration level, its differential output and the fact that only a few external components are needed. When using these digital power drivers in a digital servo application, the statement 'complete digital servo loop' becomes more realistic.
OQ8844 Maximum Ratings
| SYMBOL | PARAMETER | MIN. | MAX. | UNIT |
| VDDD | digital supply voltage | -0.5 | +6.5 | V |
| VDDA | analog supply voltage | -0.5 | +6.5 | V |
| VSSD - VSSA | ground supply voltage difference | -5 | +5 | mV |
| Ptot | total power dissipation | - | 730 | mW |
| Tstg | storage temperature | -55 | +150 | |
| Tamb | operating ambient temperature | -40 | +85 |
OQ8844 Features
Servo functions
· 1-bit class-D focus actuator driver (3.3 W)
· 1-bit class-D radial actuator driver (3.7 W)
· 1-bit class-D sledge motor driver (2.5 W).
Other features
· Supply voltage 5 V only
· Small package (SOT163-1)
· Higher efficiency, compared with conventional drivers, due to the class-D principle
· Built-in digital notch filters for higher efficiency
· Enable input for focus and radial driver
· Enable input for sledge driver
· Differential outputs for all drivers
· Separate power supply pins for all drivers.
OQ8844 Typical Application
·These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
OQ8844 Connection Diagram
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