FAN8741GX
FAN8741GX Datasheet
FAN8741/FAN8742 Spindle motor and 6-CH actuator driver
| Part | Datasheet |
|---|---|
FAN8741GX |
FAN8741GX (pdf) |
| Related Parts | Information |
|---|---|
FAN8741MTFX |
FAN8741MTFX |
| PDF Datasheet Preview |
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| FAN8741/FAN8742 Spindle motor and 6-CH actuator driver April 2005 FAN8741/FAN8742 Spindle Motor and 6-CH Driver [Spindle PWM , Sled 2-CH PWM 4-CH Linear ] Common • Built-in thermal shutdown circuit TSD • 8 Independent voltage sources • Corresponds to 3.3V or 5V DSP • 4 selectable mute inputs Spindle motor • Built in short-through protection function BTL Sled 2-channels • Output PWM mode control • Built in short-through protection function BTL Other 4-channels • Output linear mode control Suitable for a 3-phase BLDC Brush-Less Direct Current spindle motor driver with PWM, the monolithic FAN8741/FAN8742 IC also includes 2-ch motor drivers with PWM for sled motors and 4-ch linear drivers which drive the focus actuator, tracking actuator, tilt actuator, and loading motor in optical media applications. Designed specifically for high-speed/high-density optical media applications, the FAN8741/FAN8742’s power stage is created by D-MOS transistors which have extremely low RDSON. This enables less heat generation and guarantees improved reliability. The FAN8741G/FAN8742G is available in a 56-SSOP-HS package, which has high-power dissipation and the leadframe is exposed to the top side. The FAN8741MTF/FAN8742MTF is available in a 56-TSSOP-EP package, which is very thin and the leadframe is exposed to the bottom side. Ordering Information • CD-ROM • CD-RW • DVD-ROM • DVD-RAM • DVD Player DVDP • Other compact disk media • Game consoles Device Package Operating Temp. FAN8741G 56-SSOP-HS −25°C to +75°C FAN8741GX 56-SSOP-HS −25°C to +75°C FAN8742G 56-SSOP-HS −25°C to +75°C FAN8742GX 56-SSOP-HS −25°C to +75°C FAN8741MTF 56-TSSOP-EP −25°C to +75°C FAN8741MTFX 56-TSSOP-EP −25°C to +75°C FAN8742MTF 56-TSSOP-EP −25°C to +75°C FAN8742MTFX 56-TSSOP-EP −25°C to +75°C HS=HeatSlug, EP=ExposedPad X:Tape & Reel type FAN8741:FG3X FAN8742:FG1X 2005 Fairchild Semiconductor Corporation FAN8741/FAN8742 Spindle motor and 6-CH actuator driver Internal Block Diagram Pins numbered according to the FAN8741MTF--Leadframe exposed to the bottom MUTE1 22 MUTE2 23 SVCC1 52 DGND 56 VDD 48 VCP 55 CP2 54 CP1 53 IN3 47 IN4 46 PVCC3 42 Charge pump & Oscillator Mute Selection &Spindle brake sel. VCP OSC Level shift DO4− 44 DO4+ 43 PGND5 45 PVCC2 31 DO3− 41 DO3+ 40 PVCC1 32 DO2− 39 DO2+ 38 BTL driver BTL driver 10k 20k BTL driver DO1− 37 DO1+ 36 PGND4 35 IN1 34 IN2 33 BTL driver TSD LPF PWM Control OSC REF PWM Control Commutator & Power drive Spindle Direction Freguency Generator |
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