99W139A 4-Channel BTL driver BA5994FM Description The BA5994FM is a 4-channel BTL driver for an actuator and motor driver of CD/CD-ROM. (Inputs for the driver connect to an operational amplifier and it is compatible with various applications.) Channel 2&3 include a short-brake function. Dimension (Units:mm) Features 1) 4-channel BTL driver 2) Wide dynamic range (4V typical at PreVcc=12V, PowVcc=5V, RL=8Ω) 3) Built-in thermal shut down circuit 4) Separating Vcc into Pre and Power (Power divides into Channel1&2 and Channel 3&4) makes for improved power efficiency, by a lower supply voltage drive 5) Mute operated individually with Channel 4 and Channel 1&2&3 6) All channels are mute in standby mode 7) Suitable for low operation voltage DSP by wide dynamic range pre operational amplifier. 8) Built-in short-brake circuit (Channel 2&3) HSOP-M28 Applications CD, CD-ROM Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits PREVcc, POWVcc Pd 13.5 2.2 *1 V W Output current IOMAX 1 *2 A Operating temperature range Topr -35 ~ +85 ˚C Storage temperature rang Tstg -55 ~ +150 ˚C Supply voltage Power dissipation *1 On less than 3% (percentage occupied by copper foil), 70mm Unit 70mm, t=1.6mm, glass epoxy mounting. Derating: 17.6mW/˚C for operation above Ta=25˚C *2 The output current must not exceed the maximum ASO. January, 2000 Recommended Operating Conditions (Ta=25 ˚C) Parameter Supply voltage Symbol Min. Typ. Max. Unit PREVCC POWVCC 4.5 4.5 - 13.2 V - PREVCC V Electrical characteristics (Unless otherwise noted, Ta=25 ˚C, PreVcc=12V, PowVcc1=5V, PowVcc2=5V, V BIAS=1.65, VRL=8W) Parameter Symbol Typ. Max. Unit IQ Min. - 20 30 mA No load IQST3 - - 1 mA No load (Pre circuit current) Output offset voltage Maximum output voltage 1 VOOF 70 0 mV VOM1 3.6 4.0 70 - V CH1, 2 VIN=VBIAS 1.65V Maximum output voltage 2 VOM2 7.5 9 - V CH3, 4 VIN=VBIAS 1.65V * Closed loop voltage gain 1 Closed loop voltage gain 2 GVC1 10 12 14 dB CH1, 2 VIN=VBIAS 0.5V GVC2 16 18 20 dB CH3, 4 VIN=VBIAS 0.5V * Input offset voltage VOFOP 6 0 6 mV Input bias current High level output voltage VBOP nA V VBIAS=6V VOLOP 11 - - Low level output voltage 9 - 300 VOHOP V VBIAS=6V ISI 1 500 0.3 - Quiescent current All Channel Standby Current Conditions <Driver block> <Pre operational amplifier> Output sink current mA Output to PreVcc by 50W,VBIAS=6V ISO 300 mA Output to GND by 50W,VBIAS=6V This product is not designed for protection against radioactive rays. * PowVcc1=PowVcc2=12V 14 10k 13 12 10k 10k 10k 10k LEVEL SHIFT 5 10k 2 1 Vcc 28 27 3 26 10k 4 25 10k 20k 24 6 23 10k 10k 7 22 20k 10k 8 5V(for ch1,2) 11 10 0.1mF H=ENABLE L=STANDBY 9 10k STANDBY CH1,2,3 10k Vcc 10k LEVEL SHIFT tracking coil CH4 STANDBY Vcc 10k 20 H=ENABLE L=STANDBY LEVEL SHIFT LEVEL SHIFT 10k 10k 16 19 0.1mF focus coil 21 12V(for ch3,4) 18 17 10k M Sled motor 10k Tray motor M 15 10k 10k Application circuit 10k Output source current - TRACKING DIGITAL SERVO FOCUS BIAS SB1 SB2 SLED 0.1mF