BTL Driver IC for CD-ROM BA5944FP Description Dimension (Units:mm) The BA5944FP is a BTL driver IC (actuator operation) developed for CD-ROMs. Two highly accurate 3.6V regulators and a 4.2V reset circuit that acts as a peripheral power supply are included, as well as two general purpose comparators. An achievement in space savings of the set and reducing components has been realized by integrating regulators and drivers into an actuator driver IC as one chip. Features 1) 2-channel dynamic range actuator driver built-in 2) Highly accurate (+/ 2%) 3.6V regulator 2-channel built-in (1-channel regulator can be controlled with On/Off switch.) 3) Highly accurate (+/ 2%) 4.2V reset curcuit built-in 4) Includes two general purpose comparators. HSOP25 Applications Slim CD-ROM, etc. Absolute Maximum Ratings(Ta=25 ) Parameter Symbol VCC Limits 13.5 V Power dissipation Pd 1.45* W Operating temperature range Topr -35 ~ +85 Storage temperature range Tstg Supply voltage *Derating:11.6mW/ Unit -55 ~ +150 for operation above Ta=25 . Recommended Operating Conditions(Ta=25 ) Parameter Min. VCC for Pre-block Symbol PreVCC VCC for Power-block PowVCC 4.5 VCC for Regulator-block REGVCC 4.5 4.5 Typ. — Max. 13.2 Unit — — Pre Vcc V Pre Vcc V V Electrical Characteristics (Unless otherwise noted, Pre/Pow/Reg, Vcc=5V, BIAS=1.65V, RL=8 ) Parameter Symbol Min. Typ. Max. Unit Icc — 10.0 15.0 mA Quiescent current Conditions No load <DRIVER> Voo 50.0 0.0 50.0 mV Output amplitude 1 VOM1 3.2 3.6 — V Output amplitude 2 VOM2 3.7 4.1 — V Gain (close circuit) Gvc 10.0 11.5 13.0 dB Peak output current IoMax 200 — — mA Output voltage VREG Output offset voltage Pre Vcc=12V, Pow Vcc=5V Vin=BIAS – 0.5V <REGULATOR> IL=100mA 3.525 3.60 3.675 V Load regulation V RL — IL=0~200mA Line regulation — 50 10 mV V Vcc 20 3 mV Vcc=4.5~13.2V Vio 4.0 — 4.0 mV VICM 0.0 — Vcc 1.6 V <COMPARATOR> Input offset voltage Common mode input voltage range <RESET> Reset ON voltage VRSTON 4.12 4.20 4.28 VRSTHY 60 40 90 ∗ This product is not designed for protection against radioactive rays. V Hysteresis bound RESET IN=High >Low mV Application circuit RESET OUT Driver Reg2 MUTE ON/OFF BIAS PRE GND RESET 25 24 23 IN2 IN1 22 21 Pow GND 20 19 18 17 16 15 14 14K PRE Vcc 14K Reg2 ON/OFF 14K 14K Driver MUTE T.S.D + Level Shift Level Shift + Comparator2 Comparator1 RESET IN 1 2 Comp.1 IN1— OUT 3 4 IN1+ IN2+ 5 6 POW Vcc 7 IN2— Comp.2 OUT 8 9 10 11 12 REG Vcc Reg2 Reg 1 Vcc 13