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| ICs for Compact Disc/CD-ROM Player AN8735NSB 2-channel linear driver IC for CD/CD-ROM player s Overview The AN8735NSB is a 2-channel BTL driver IC for CD/CD-ROM. It is a small package version of the AN8735SB. 12.630.20 (1.90) 24 19 18 13 Unit: mm s Features * 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) 1 6 7 12 2.000.20 5.500.20 7.600.30 (1.05) 0.100.10 0.20 -0.05 +0.10 (0.715) (3.20) 0.80 +0.10 0.30-0.05 0 to 10 0.500.20 s Applications * Car CD player * CD/CD-ROM player Seating plane HSOP030-P-0300 s Block Diagram PVCC1 PVCC2 VO1- VO1+ VO2- VO2+ 11 SVCC 6 18 14 17 8 1 V 2 CC 12 PGND 13 VCC det. Temp. det. 1 V 2 CC PGND 5 Reset 7 VREF det. OP2 4 3 2 OP1 1 Fin 24 16 22 21 23 VREF PC1 IN1 IN2 PC2 9 1 AN8735NSB s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Description Op-amp. 1: inverted inpuit pin Op-amp. 1: output pin Op-amp. 2: non-inverted input pin Op-amp. 2: inverted inpuit pin Op-amp. 2: output pin Power supply pin Driver power supply pin 2 Driver-2 reverse rotation output pin Power cut input pin 2 N.C. Driver-2 forward rotation output pin Driver GND pin 1 Driver GND pin 2 ICs for Compact Disc/CD-ROM Player Pin No. 14 15 16 17 18 19 20 21 22 23 24 Fin Description Driver-1 reverse rotation output pin N.C. Power cut input pin 1 Driver-1 forward rotation output pin Driver power supply pin 1 N.C. N.C. VREF input pin Driver-1 input pin Driver-2 input pin Op-amp. 1: non-inverted input pin GND pin s Absolute Maximum Ratings Parameter Supply voltage Supply current *2 *1 Symbol VCC ISVCC IPVCC1 , IPVCC2 Rating 14.4 250 800 390 -30 to +85 -55 to +150 Unit V mA Power dissipation PD Topr Tstg *1 mW C C Operating ambient temperature Storage temperature Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: Referring to "s Usage Notes", use within the range of PD = 390 mW or less at Ta = 85C, following the allowable power dissipation characteristic curve of "s Application Notes". s Recommended Operating Range Parameter Supply voltage Symbol SVCC PVCC1 , PVCC2 Range 4.5 to 14 3.5 to 14 Unit V 2 ICs for Compact Disc/CD-ROM Player AN8735NSB s Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 , VPC1 = 5 V, VPC2 = 5 V, Ta = 25C Parameter Current consumption 1 with no signal Current consumption 2 with no signal Current consumption 3 with no signal Driver 1, 2 RL1 = RL2 = 8 VDROF G1+ G1 VL1+ VL1- VIN = 3.3 V VIN = 0 V SVCC = 12 V SVCC = 12 V SVCC = 12 V, IOP = +2 mA SVCC = 12 V, IOP = -2 mA SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V, PC1 = 5 V SVCC = 12 V, PC2 = 5 V IIN1 = IIN2 = 0 A RIN1 = RIN2 = 10 k, VIN = VREF 50 mV -65 21.5 - 0.7 3.8 -10 -2 10 2.0 2.0 0 22.9 4.25 -4.25 65 24.3 +0.7 -3.8 mV dB dB V V Symbol ISVCC IPVCC1 IPVCC2 Conditions IIN1 = IIN2 = 0 A, PC1 = PC2 = 0 V IIN1 = IIN2 = 0 A, PC1 = 0 V IIN1 = IIN2 = 0 A, PC2 = 0 V Min Typ 2.5 0.3 0.3 Max 5 1 1 Unit mA mA mA Output offset voltage Gain (+) Relative gain (+/-) Maximum output amplitude (+) Maximum output amplitude (-) Op-amp. 1, 2 Input offset voltage Input bias current High-level output voltage Low-level output voltage Output driving current sink Output driving current source Power cut operation PC1 threshold high-level voltage PC1 threshold low-level voltage PC2 threshold high-level voltage PC2 threshold low-level voltage PC1 input current PC2 input current Reset circuit Reset operation release supply voltage VREF detection voltage VOPOF IBOP VOH VOL ISIN ISOU 0 - 0.5 70 70 10 0 0.9 1.0 1.0 140 140 mV A V V mA mA VPC1H VPC1L VPC2H VPC2L IPC1 IPC2 VRST VR 2.9 2.9 1.35 V V V V A A 4.5 V V 3 AN8735NSB ICs for Compact Disc/CD-ROM Player s Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 , VPC1 = 5 V, VPC2 = 5 V, Ta = 25C (continued) * Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Thermal protection circuit Operating temperature equilibrium value Operating temperature hysteresis width Supply voltage detection hysteresis width Symbol Conditions Min Typ Max Unit C C V TTHD TTHD VHD 160 45 0.2 s 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 k Input Pin 22 or pin 23 Input pin 10 k 200 Pin17 or pin 11 Pin14 or pin 8 5.5 k VREF VREF Power amp. Output pin Load 3. On operating mode of mute, 1) Driver PC1 High Channel 1 Channel 2 2) General-use op-amp. PC1 High PC2 High Low (open) Active Active Low (open) Active Mute Active Low (open) Mute High Active PC2 Low (open) 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 s Application Notes * PD Ta curves of HSOP030-P-0300 PD T a 4.500 4.152 4.000 3.500 AN8735NSB Power dissipation PD (W) Infinite a heat sink Rth(j-c) = 30.1C/W 3.000 2.500 Mounted on standard board (glass epoxy: 50 mm x 50 mm x t0.8 mm) Rth(j-a) = 93.1C/W 2.000 1.500 1.343 1.000 0.686 0.500 Independent IC without a heat sink Rth(j-a) = 182.0C/W 0.000 25 50 0 75 100 125 150 Ambient temperature Ta (C) s Application Circuit Example VO1- VO1+ VO2- VO2+ PVCC1 18 14 17 SVCC 11 6 8 1 V 2 CC PGND 12 GND 13 VCC det. Temp. det. 1 V 2 CC 5 PGND OP2 4 3 2 OP1 1 24 Reset VREF det. Fin 16 RIN1 = 10 k 22 21 RIN2 = 10 k 23 PC1 VREF IN1 IN2 PC2 9 7 PVCC2 5 |
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