ICs for CD/CD-ROM Player AN8377N 3-channel Linear Driver ■ Overview Unit : mm (maximum drive current : 500mA) Stable circuit operation against supply voltage change and temperature change due to the built-in stabilized power supply • Built-in +5V low drop power supply (external PNP power transistor) • Built-in reset circuit (reset voltage : 4.82V) • Built-in thermal protective circuit (operating temperature : 159 ; typ.) • Built-in power cut circuit (motor driver 1 only) 1.7 1.5±0.1 17 • 0.5±0.1 16 15 14 13 12 11 10 9 0.560.1 3.80±0.3 ø2.1 + 0.1 0 ~ 6˚ 0.45 – 0.05 7.62±0.25 16-Lead DIP Package with Fin (HDIP016-P-0300) ■ Applications Linear driving of the DC motors and actuators of the CD players, CD radio cassette tape recorder, and so on. ■ Block Diagram 15 13 14 BTL Motor Driver 1 RST Thermal Shutdown 9 10 BTL Motor Driver 3 11 12 BTL Motor Driver 2 5V Regulator (low–sat) 3 4 – 16 Error Amp. + 5 – Error Amp. + 7 100kW Band– gap (2.5V) 100kW 2 100kW 1 VCC 3.05±0.25 1.06±0.25 1.2±0.25 1 2 3 4 5 6 7 8 4.70.25 2.54 2.54 27.4±0.3 ■ Features • Operating supply voltage range ; VCC=5.5V to 18V • Built-in 3 circuits of voltage BTL drivers 21.6±0.3 6.35±0.3 5.08±0.1 The AN8377N is an IC which incorporates 3 circuits of BTL drivers for driving various DC motors such as actuators (focus, tracking, traverse), spindles, and loading of the CD players, and the +5V low drop type power supply. – P VCC F GND Error Amp. + 6 8 VREF (1⁄2VCC) ICs for CD/CD-ROM Player AN8377N ■ Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Rating VCC 20 Supply Voltage Unit V Power Dissipation PD 1500 Operating Ambient Temperature Topr –25 ~ +80 ˚C Storage Temperature Tstg –55 ~ +150 ˚C mW ■ Recommended Operating Range (Ta=25˚C) Parameter Symbol Range Operating Supply Voltage Range VCC 5.5V ~ 16V ■ Electrical Characteristics (Ta=25˚C) Parameter Symbol Condition min. typ. max. Unit 7 10.5 15 VCC=12V, RL=50W 4.75 5 5.25 V DVRI VCC=12V, RL=50W ~ 25W –15 30 mV DVRVC VCC=15.5V ~ 5.5V , RL=50W –15 50 mV No Load Current ICC VCC=12V 5V Regulator Output Voltage VRO 5V Regulator Load Change 5V Regulator Input Change mA Reset Threshold Voltage VRST 4.55 4.82 5.1 V Reset Threshold Hysteresis Width VHYS 90 170 310 mV Reset Operating Minimum Voltage VR (min.) Input Offset Voltage VIOF Output Offset Voltage VOOF Minimum VCC Voltage at which V15=Low VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW VCC=18V, RL=20W, RIN=10kW V 3.1 –7 7 mV –50 50 mV 22.5 dB – 0.85 0.85 dB 7.1 10.9 V –10.9 –7.1 V –10 30 mV 1.2 V Gain (+) G+ (+) (–) Relative Gain GR Limit Voltage (+) VL+ Limit Voltage (–) VL– Dead Zone Width VDZ PC Input Threshold (L) VPCL VCC=18V PC Input Threshold (H) VPCH VCC=18V 2.8 Motor Driver 2 Output Voltage at Reset V2RS VCC=3.5V, RL=10kW –50 50 mV Motor Driver 3 Output Voltage at Reset V3RS VCC=3.5V, RL=10kW –50 50 mV Motor Driver 1 Output Voltage at Reset V1RS VCC=3.5V, RL=10kW –50 50 mV 5V Regulator External Transistor Base Current Limit Value I3LIM 16 mA Thermal Protective Circuit Operating Temperature Balancing Value TTHD 159 ˚C Thermal Protective Circuit Operating Temperature Hysteresis Width DTTHD 64 ˚C 16.5 9 20 V 12 Note) The specified values of VIOF, VOOF, G+, GR, VL+, VL– , and VDZ are common ones for each of the motor driver 1, motor driver 2, and motor driver 3 circuits. ICs for CD/CD-ROM Player AN8377N ■ Application Circuit (Used when driving the focus, tracking actuator, and traverse motor) from MN6622 or MN6625 +5V M 20kW 16 15 14 13 12 11 10 9 AN8377N 1 2 3 4 5 F 6 7 8 A1547 PVCC VCC Motor Driver 3 + 22mF Motor Driver 2 5V Motor Driver 1 (shot circuit possible) VREF (typ.2.5V) ■ Pin Descriptions (The following description applies when the 3 channels for the motor drivers 1, 2, and 3 are used.) Pin No. Symbol I/O DC Voltage (VCC/12V) Equivalent Circuit Description 1 1 PVCC I 12V 2 VCC I 12V 3 TB O 11.3V Power VCC pin. Supplies a current flowing to the output power transistor. 33 VCC pin. Not connected to the power VCC pin. 2 3 External PNP transistor base connection pin 4 10kW 10kW 4 VMON I 5V External PNP transistor collector connection pin (=5V output pin) ICs for CD/CD-ROM Player AN8377N ■ Pin Descriptions (Cont.) (The following description applies when the 3 channels for the motor drivers 1, 2, and 3 are used.) DC Voltage (VCC/12V) Pin No. Symbol I/O Equivalent Circuit Description 15 RST O F GND I 0V 8 VREF I 2.5V 5 TVDI I 2.5V 6 FDI I 2.5V 7 TDI I 2.5V 9 TD – O (0.3V) 10 TD+ O (0.3V) BTL driver 3 non-inverting output pin 11 FD – O (0.3V) BTL driver 2 inverting output pin 12 FD+ O (0.3V) BTL driver 2 non-inverting output pin 13 TVD – O (0V) 15 Reset output pin. Open collector output type. 200W F GND pin ···· VREF input pin 8 Driver 1 error input pin 5 Driver 2 error input pin 500W or 6 14 TVD+ O or Driver 3 error input pin 7 (P VCC) BTL driver 3 inverting output pin (0V) 9 10 or or 11 12 or or 13 14 BTL driver 1 inverting output pin BTL driver 1 non-inverting output pin 16 16 PC I 0V PC (power cut) input pin