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| 01W109A 4-channel BTL driver BA5824FP Description BA5824FP incorporates 4-channel drivers that operate the motor and the actuator for car CD players. CH1,2 and CH3,4 each have power supply independently. The highly efficient drive can be achieved due to the low voltage operation. The input of CH4 can be switched by the control pin. Dimension (Units : mm) 18.5 0.2 28 15 9.9 0.3 7.5 0.2 1 14 5.15 0.1 2.2 0.1 0.11 0.8 0.35 0.1 0.08 M 16.0 0.2 0.25 0.1 0.1 S Features 1) Wide dynamic range 2) Built-in thermal shut down circuit 3) Built-in mute function by control pin and mute pin HSOP28 Applications CD players, DVD players CD players, and DVD players for Car Absolute Maximum Ratings (Ta=25C) Parameter Maximum applied voltage Power dissipation Operating temperature range Storage temperature range Symbol Vcc Pd Topr Tstg Limits 18 1700 * Unit V mW -35 ~ -55 ~ +85 +150 C C *Derating : 13.6mW/C for operation above Ta=25C November, 2001 0.5 0.2 Recommended Operating Conditions (Ta=25C) Parameter Power supply voltage Symbol VCC Min. 4.5 Typ. 8 Max. 14 Unit V Electrical characteristics (Unless otherwise noted; Ta=25C, Vcc=8V) Parameter Consumption current at no signal Symbol IQ Voof VOM GVC VOFOP VOHOP VOLOP Min. - -50 5.4 10.0 -6 7.5 - Typ. 22 0 6.0 11.7 0 7.9 0.2 Max. 32 50 - 13.4 6 - 0.5 Unit mA mV V dB mV V V No load Conditions Output offset voltage Maximum output voltage Voltage gain Pre-Op. Amp offset voltage Pre-Op. Amp high level voltage Pre-Op. Amp low level voltage VIN=0.5V Application Circuit CONTROL -+ 10k -+ COM SERVO LOADING SLED SPINDLE 0.1F 0.1 F Sled/Loading motor Spindle motor M M 28 PreVcc 27 26 25 +- 24 23 22 10k 21 L SLED 10k CONTROL 20 Pow GND 19 Pow Vcc2 18 10k 17 CH4 10k 16 +10k 10k 15 CH3 10k 10k 10k -+ H 2.4V +10k +- +- +- H 10k 10k L 10k -+ 10k Level shifter Level shifter T.S.D 10k -+ 10k 10k BA5824FP Level shifter Level shifter 10k 10k 10k 10k ++BIAS PreGND MUTE PowGND PowVcc1 CONTROL +- 10k +- 10k +- 10k +- 10k CH1 CH2 1 2 3 4 5 6 7 8 9 0.1F 10 11 12 13 14 Tracking coil Focus coil BIAS FOCUS TRACKING MUTE |
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