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| ICs for CD/CD-ROM Player AN8780SB (Under development) 4Ch. Linear Driver IC for CD/CD-ROM s Overview The AN8780SB employs 4ch. H-bridge system that is suitable for driver or actuator of CD player. Also it employs the surface mounting type package superior in radiation characteristics. +0.10 - 0.05 Unit : mm 18.40.20 (5.15) (4.8) 28 22 21 15 8.30.20 (1.315) s Features * Wide output 10.930.30 0.30 D-range is available regardless of reference voltage on the system * 4 ch. BTL Driver built-in. Particularly suitable for driver of actuator or motor of 5 to 20 load. * 2 ch. independently controllable PC (Power Cut) feature, and 4 ch. simultaneously controllable PC feature built-in. * Thermal shut down circuit (with hysteresis) built-in. * Control for proper heat of IC by separating the power supplies for signal line and output line. * Provided with reset output pin. * Shot brake mode. CD player, CD-ROM, for drive of motor 0 ~ 10 0.650.20 1 7 8 14 (6.4) (1.2) 0.8 +0.10 0.35 - 0.05 28 pin, fin attached SOP package (HSOP042-P-0400) s Application The AN8780SB is under development, so these described contents may be revised without prior notice. s Block Diagram PGND2 20 NC 19 D4+ 18 D4- 17 D3+ 16 D3- 15 D2+ 14 D2- 13 D1+ 12 D1- 11 NC PGND1 10 9 BTL Linear Driver Ch.4 21 PVCC2 Ch.4 Thermal Protect VCC Monitor VREF Monitor +- Absolute V-1 Direction Det. BTL Linear Driver Ch.3 BTL Linear Driver Ch.2 BTL Linear Driver Ch.1 8 PVCC1 Ch.3 Absolute V-1 Direction Det. Ch.2 Absolute V-1 Direction Det. Ch.1 Absolute V-1 Direction Det. 0.100.10 2.70.30 PC1 7 FIN +- +- +- 22 SVCC RESET 23 NC 24 VREF 25 IN4 IN3 26 27 RESET IN 28 NC 1 2 RESET NC OUT 3 IN2 4 PC2 5 NC 6 IN1 VCC AN8780SB s Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Reset output pin NC Input pin of motor driver 2 PC 2 (Power Cut) input pin NC Input pin for motor driver 1 PC (Power Cut) 1 input pin VCC 1 for driver GND 1 for driver NC Reverse rotation output pin of motor driver 1 Normal rotation output pin of motor driver 1 Reverse rotation output pin of motor driver 2 Normal rotation output pin of motor driver 2 Reverse rotation output pin of motor driver 3 Pin Name Pin No. 16 17 18 19 20 21 22 23 24 25 26 27 28 Fin GND 2 for driver VCC 2 for driver Supply pin NC VREF input pin ICs for CD/CD-ROM Player Pin Name Normal rotation output pin of motor driver 3 Reverse rotation output pin of motor driver 4 Normal rotation output pin of motor driver 4 Input pin of motor driver 4 Input pin of motor driver 3 Reset input pin NC GND s Absolute Maximum Ratings (Ta=25C) Parameter Supply Voltage Supply Current Power Dissipation Note) Output current Operating Ambient Temperature Storage Temperature Symbol VCC ICC PD Iout Topr Tstg 3140 500 -30 ~ + 85 -55 ~ +150 Rating 20 Unit V mA mW mA C C Note) For surface mounting on 100 x 80 x 1.6 mm double face glass epoxy board. s Recommended Operating Range (Ta=25C) Parameter Operating Supply Voltage Range Symbol VCC PVCC Range 4.5V ~ 14V ICs for CD/CD-ROM Player s Electrical Characteristics (Ta=25C2C) Parameter Total Circuit Current Drivers 1 to 4 Input Offset Voltage Output Offset Voltage Gain (+) (+) (-) Relative Gain Limit Voltage (+) Limit Voltage (-) Dead Zone Width PC Operation Threshold H Threshold L Reset circuit Reset Operation Release Supply Voltage Threshold Hysteresis Width VREF Detection Heat Protection Circuit Operation Temperature Equilibrium Value Note 1) Operation Temperature Hysteresis Width Note 1) AN8780SB Symbol Itot Condition PVCC1 = PVCC2 = SVCC = 8V PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 PVCC1 = PVCC2 = SVCC = 8V RL = 8 min. 10 typ. 20 max. 30 Unit mA VIOF VOOF G+ DG VL+ VL - VDZ -10 -60 14 -1.7 4.4 5.0 -5.0 -10 17 10 60 21 1.7 mV mV dB dB V -4.4 20 V mV VPCH VPCL 1.4 0.5 V V VRST VHYS VR TTHD DTTHD ( ( 0.09 1.85 ) ) (180) (45) ( ( 0.17 4.5 0.31 V V V ) ) C C Note 1) Characteristic value in parentheses is a reference value for design but not a guaranteed value. s Characteristic Curve PD -Ta 4,000 3,600 3,200 Power Dissipation PD (mW) 2,800 2,400 2,000 1,600 1,200 800 400 0 0 25 50 75 100 125 150 Ambient Temperature Ta (C) Unit Rthj- a = 111.6C/W PD = 1120mW (25C) Glass epoxy board (100mm x 80mm x 1.6mm) Rthj- a = 39.8C/W PD = 3141mW (25C) |
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