8905 Maximum Ratings
Load Supply Voltage, VBB . . . . . . . .14 V
Output Current, IOUT. . . . . . . . ±1.25 A
Logic Supply Voltage, VDD . . . . ....6.0 V
Logic Input Voltage Range,
VIN . . . . . . . ..... -0.3 V to VDD + 0.3 V
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . .... See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . ...... 0 to +70
Junction Temperature, TJ . . . ... +150+
Storage Temperature Range,
TS . . . . . . . . . . . . ..... -55 to +150
+ Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated, but should be avoided.
Output current rating may be restricted to a valueDISCON determined by system concerns and factors.These include: system duty cycle and timing,
ambient temperature, and use of any heatsinking and/or forced cooling. For reliable operation, the specified maximum junction temperature should- FOR not be exceeded.
8905 Features
DMOS Outputs
Low rDS(on)
Startup Commutation Circuitry
Back-EMF Commutation Circuitry
Serial Port Interface
Frequency-Locked Loop Speed Control
Tachometer Signal Input
Programmable Start-Up Current
Diagnostics Mode
Sleep Mode
Linear Current Control
Internal Current Sensing
Dynamic Braking Through Serial
Port Power-Down Dynamic Braking
System Diagnostics Data Out
Data Out Ported in Real Time
Internal Thermal Shutdown Circuitry
8905 Typical Application
CD-ROMs
DVDs
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