ICs for Compact Disc/CD-ROM Player AN8735NSB 2-channel linear driver IC for CD/CD-ROM player ■ Overview Unit: mm 12.63±0.20 (1.90) 24 19 18 13 1 6 7 12 5.50±0.20 7.60±0.30 The AN8735NSB is a 2-channel BTL driver IC for CD/CD-ROM. It is a small package version of the AN8735SB. (0.715) (3.20) +0.10 0.30–0.05 0.80 +0.10 0.20 –0.05 (1.05) 0.10±0.10 • 2-channel of D range widening type BTL driver built in • Optimum to drive a motor actuator • 2 pieces of exclusive op-amp. built in • PC (power cut) function • Thermal shut-down circuit built-in (with hysteresis) 2.00±0.20 ■ Features 0° to 10° 0.50±0.20 Seating plane ■ Applications HSOP030-P-0300 • Car CD player • CD/CD-ROM player PVCC2 VO2+ 7 11 8 VCC det. 1 V 2 CC VO2− SVCC 6 VO1+ 17 VO1− 14 18 PVCC1 ■ Block Diagram Temp. det. 1 V 2 CC 12 PGND 13 PGND Reset 5 OP2 VREF det. 4 3 2 OP1 9 PC2 IN2 23 21 VREF IN1 PC1 22 24 16 Fin 1 1 AN8735NSB ICs for Compact Disc/CD-ROM Player ■ Pin Descriptions Pin No. Description Pin No. Description 1 Op-amp. 1: inverted inpuit pin 14 Driver-1 reverse rotation output pin 2 Op-amp. 1: output pin 15 N.C. 3 Op-amp. 2: non-inverted input pin 16 Power cut input pin 1 4 Op-amp. 2: inverted inpuit pin 17 Driver-1 forward rotation output pin 5 Op-amp. 2: output pin 18 Driver power supply pin 1 6 Power supply pin 19 N.C. 7 Driver power supply pin 2 20 N.C. 8 Driver-2 reverse rotation output pin 21 VREF input pin 9 Power cut input pin 2 22 Driver-1 input pin 10 N.C. 23 Driver-2 input pin 11 Driver-2 forward rotation output pin 24 Op-amp. 1: non-inverted input pin 12 Driver GND pin 1 Fin GND pin 13 Driver GND pin 2 ■ Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage VCC 14.4 V Supply current ISVCC 250 mA IPVCC1 , IPVCC2 800 PD 390 mW Topr −30 to +85 °C Tstg −55 to +150 °C Power dissipation *2 Operating ambient temperature Storage temperature *1 *1 Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: Referring to "■ Usage Notes", use within the range of PD = 390 mW or less at Ta = 85°C, following the allowable power dissipation characteristic curve of "■ Application Notes". ■ Recommended Operating Range Parameter Supply voltage 2 Symbol Range Unit SVCC 4.5 to 14 V PVCC1 , PVCC2 3.5 to 14 ICs for Compact Disc/CD-ROM Player AN8735NSB ■ Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 Ω, VPC1 = 5 V, VPC2 = 5 V, Ta = 25°C Parameter Symbol Current consumption 1 with no signal ISVCC Current consumption 2 with no signal Current consumption 3 with no signal Driver 1, 2 Conditions Min Typ Max Unit IIN1 = IIN2 = 0 µA, PC1 = PC2 = 0 V 2.5 5 mA IPVCC1 IIN1 = IIN2 = 0 µA, PC1 = 0 V 0.3 1 mA IPVCC2 IIN1 = IIN2 = 0 µA, PC2 = 0 V 0.3 1 mA VDROF IIN1 = IIN2 = 0 µA −65 0 65 mV RIN1 = RIN2 = 10 kΩ, VIN = VREF ±50 mV 21.5 22.9 24.3 dB − 0.7 +0.7 dB RL1 = RL2 = 8 Ω Output offset voltage Gain (+) G1+ Relative gain (+/−) G1 Maximum output amplitude (+) VL1+ VIN = 3.3 V 3.8 4.25 V Maximum output amplitude (−) VL1− VIN = 0 V −4.25 −3.8 V VOPOF SVCC = 12 V −10 0 10 mV Input bias current IBOP SVCC = 12 V −2 − 0.5 0 µA High-level output voltage VOH SVCC = 12 V, IOP = +2 mA 10 V Low-level output voltage VOL SVCC = 12 V, IOP = −2 mA 0.9 V Output driving current sink ISIN SVCC = 12 V 2.0 mA Output driving current source ISOU SVCC = 12 V 2.0 mA PC1 threshold high-level voltage VPC1H SVCC = 12 V 2.9 V PC1 threshold low-level voltage VPC1L SVCC = 12 V 1.0 V PC2 threshold high-level voltage VPC2H SVCC = 12 V 2.9 V PC2 threshold low-level voltage VPC2L SVCC = 12 V 1.0 V Op-amp. 1, 2 Input offset voltage Power cut operation PC1 input current IPC1 SVCC = 12 V, PC1 = 5 V 70 140 µA PC2 input current IPC2 SVCC = 12 V, PC2 = 5 V 70 140 µA VRST 4.5 V VR 1.35 V Reset circuit Reset operation release supply voltage VREF detection voltage 3 AN8735NSB ICs for Compact Disc/CD-ROM Player ■ Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 Ω, VPC1 = 5 V, VPC2 = 5 V, Ta = 25°C (continued) • Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit Thermal protection circuit Operating temperature equilibrium value TTHD 160 °C Operating temperature hysteresis width ∆TTHD 45 °C Supply voltage detection hysteresis width ∆VHD 0.2 V ■ Usage Notes 1. Be sure to use SVCC in the maximum potential. Otherwise, it is likely to cause an operating error. 2. On driver gain setting, Power amp. voltage gain: 23 dB 10 kΩ Pin 22 or pin 23 10 kΩ Pin17 or pin 11 200 Ω Pin14 or pin 8 Input pin Input 5.5 kΩ VREF Power amp. Output pin Load VREF 3. On operating mode of mute, 1) Driver PC1 PC2 High Low (open) High Low (open) Channel 1 Active Mute Channel 2 Active Mute 2) General-use op-amp. PC1 PC2 High Low (open) High Active Active Low (open) Active Mute 4. Appropriate care should be taken on the characteristics. When changing an external circuit constant on actual use, secure an appropriate margin in consideration of characteristic fluctuation of external parts and our ICs including transient characteristics as well as static ones. 5. Avoid the short-circuits between output pin and VCC , output pin and GND (line-to-supply and line-to-ground), and between output pins (load short-circuit). Otherwise, the IC is likely to emit smoke and break down. 6. An appropriate prior study should be done for use of dip soldering. 4 ICs for Compact Disc/CD-ROM Player AN8735NSB ■ Application Notes • PD Ta curves of HSOP030-P-0300 PD T a 4.500 4.152 4.000 Power dissipation PD (W) 3.500 Infinite a heat sink Rth(j-c) = 30.1°C/W 3.000 2.500 2.000 1.500 1.343 Mounted on standard board (glass epoxy: 50 mm × 50 mm × t0.8 mm) Rth(j-a) = 93.1°C/W 1.000 0.686 0.500 Independent IC without a heat sink Rth(j-a) = 182.0°C/W 0.000 25 50 0 75 100 125 150 Ambient temperature Ta (°C) VCC det. 1 V 2 CC 7 11 8 6 SVCC PVCC2 VO2+ VO2− VO1+ 17 14 18 PVCC1 VO1− ■ Application Circuit Example Temp. det. 1 V 2 CC 5 PGND 12 PGND OP2 Reset GND 13 4 VREF det. 3 2 OP1 1 PC2 9 IN2 RIN2 = 10 kΩ 23 21 VREF RIN1 = 10 kΩ 22 IN1 16 PC1 Fin 24 5