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ICs for CD/CD-ROM Player AN8377N 3-channel Linear Driver s Overview 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. 6.350.3 4.70.25 Unit : mm 3.050.25 1.060.25 0.50.1 3.800.3 0.560.1 + 0.1 (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) o2.1 0 ~ 6 7.620.25 0.45 - 0.05 16-Lead DIP Package with Fin (HDIP016-P-0300) s Applications Linear driving of the DC motors and actuators of the CD players, CD radio cassette tape recorder, and so on. s Block Diagram 15 13 14 9 10 11 12 RST Thermal Shutdown BTL Motor Driver 1 BTL Motor Driver 3 BTL Motor Driver 2 1 P VCC 100kW 100kW VCC 2 Band- gap (2.5V) 5V Regulator (low-sat) 100kW F GND Error Amp. + - Error Amp. + - Error Amp. + - 3 4 16 5 7 6 8 VREF (12VCC) 5.080.1 1.7 * 1.50.1 17 2.54 2.54 s Features * Operating supply voltage range ; VCC=5.5V to 18V * Built-in 3 circuits of voltage BTL drivers 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 27.40.3 21.60.3 1.20.25 AN8377N s Absolute Maximum Ratings (Ta=25C) Parameter Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Symbol VCC PD Topr Tstg ICs for CD/CD-ROM Player Rating 20 1500 -25 ~ +80 -55 ~ +150 Unit V mW C C s Recommended Operating Range (Ta=25C) Parameter Operating Supply Voltage Range Symbol VCC Range 5.5V ~ 16V s Electrical Characteristics (Ta=25C) Parameter No Load Current 5V Regulator Output Voltage 5V Regulator Load Change 5V Regulator Input Change Reset Threshold Voltage Reset Threshold Hysteresis Width Reset Operating Minimum Voltage Input Offset Voltage Output Offset Voltage Gain (+) (+) (-) Relative Gain Limit Voltage (+) Limit Voltage (-) Dead Zone Width PC Input Threshold (L) PC Input Threshold (H) Motor Driver 2 Output Voltage at Reset Motor Driver 3 Output Voltage at Reset Motor Driver 1 Output Voltage at Reset 5V Regulator External Transistor Base Current Limit Value Thermal Protective Circuit Operating Temperature Balancing Value Thermal Protective Circuit Operating Temperature Hysteresis Width Symbol ICC VRO DVRI DVRVC VRST VHYS VR (min.) VIOF VOOF G+ GR VL+ VL- VDZ VPCL VPCH V2RS V3RS V1RS I3LIM TTHD DTTHD 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 VCC=18V VCC=18V VCC=3.5V, RL=10kW VCC=3.5V, RL=10kW VCC=3.5V, RL=10kW 2.8 -50 -50 -50 9 12 159 64 50 50 50 16 VCC=12V VCC=12V, RL=50W VCC=12V, RL=50W ~ 25W VCC=15.5V ~ 5.5V , RL=50W Condition min. 7 4.75 -15 -15 4.55 90 3.1 -7 -50 16.5 - 0.85 7.1 -10.9 -10 20 7 50 22.5 0.85 10.9 -7.1 30 1.2 4.82 170 typ. 10.5 5 max. 15 5.25 30 50 5.1 310 Unit mA V mV mV V mV V mV mV dB dB V V mV V V mV mV mV mA C C 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 s Application Circuit (Used when driving the focus, tracking actuator, and traverse motor) from MN6622 or MN6625 16 AN8377N +5V M 13 12 11 10 9 20kW 15 14 AN8377N F 1 2 3 A1547 4 5 6 7 8 PVCC VCC Motor Driver 1 Motor Driver 2 Motor Driver 3 VREF (typ.2.5V) (shot circuit possible) 5V + 22mF s 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) 1 1 PVCC I 12V 33 Equivalent Circuit Description Power VCC pin. Supplies a current flowing to the output power transistor. 2 VCC I 12V 2 VCC pin. Not connected to the power VCC pin. 3 3 TB O 11.3V External PNP transistor base connection pin 4 10kW 10kW 4 VMON I 5V External PNP transistor collector connection pin (=5V output pin) AN8377N ICs for CD/CD-ROM Player s Pin Descriptions (Cont.) (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 15 15 RST O 200W Reset output pin. Open collector output type. F GND I 0V F GND pin **** 8 VREF I 2.5V 8 VREF input pin 5 6 7 9 10 11 12 13 14 TVDI FDI TDI TD - TD+ FD - FD+ TVD - TVD+ I I I O O O O O O 2.5V 2.5V 2.5V (0.3V) (0.3V) (0.3V) (0.3V) (0V) (0V) 9 or (P VCC) Driver 1 error input pin 5 or 500W Driver 2 error input pin Driver 3 error input pin BTL driver 3 inverting output pin BTL driver 3 non-inverting output pin BTL driver 2 inverting output pin BTL driver 2 non-inverting output pin 10 or 6 or 7 BTL driver 1 inverting output pin BTL driver 1 non-inverting output pin 11 or 12 or 13 14 16 PC (power cut) input pin 16 PC I 0V |
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