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TLS2205DL Datasheet(PDF) 7 Page - Texas Instruments |
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TLS2205DL Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 31 page  SLFS040 – DECEMBER 1993 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 7 voice-coil motor driver electrical characteristics over recommended range of supply voltage, TA = 25 C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Total output drain-to-source on-state resistance, 2 rDS(on) VCMA, VCMB 2 3 Total VCM driver voltage drop IO = 200 mA 0.6 V Total VCM driver voltage drop IO = 400 mA 1.2 V VCM driver voltage drop on retract ICRET = 50 mA, RETSET grounded 1.3 V VCM gain accuracy 4% VCM differential linearity 1.6% Slew rate .05 V/ s Control voltage RETSET 0.7 V Pullup resistance CRET, RETOUT 20 Output voltage 3.88 4 4.12 V Output impedance REFBUF f = 10 kHz 6.1 Source current 7 mA Output voltage VCMREF 1.94 2 2.06 V Clamp voltage CRET See Note 6 9 V NOTE 5: Optional Zener diode may be required on CRET for filtering narrow voltage spikes spindle-motor driver electrical characteristics over recommended supply voltage range, TA = 25 C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Total output drain-to-source on-state resistance, 2 rDS(on) U, V, W 1.3 1.6 Source-driver output voltage slew rate 0.07 V/ s Sink-driver output voltage slew rate See Note 7 0.07 V/ s Retract clamp diode forward voltage U, V, W, CRET IRETOUT = 50 mA 0.5 V Center tap driver-output saturation resistance CTDRV See Note 8 150 Speed discriminator count range See Note 9 8 8333 16384 Maximum compensation voltage VCM DAC word = FFhex 4 V Maximum spin compensation voltage RUN MODE 5 V Minimum spin compensation voltage 0.8 V Charge-pump leakage current 3 5 nA Charge-pump output current SPNCOMP 50 A Charge-pump output current matching 1% Spindle-driver start current U, V, W 1.2 A NOTES: 6. This slew rate is determined by the percentage of programmed current. 7. CTDRV is an open-drain switch. 8. The typical count (1041) fspindle = 3600 (RPM) at f(MTRCLK) = 1 MHz |
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