AN8377N

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. 6.35±0.3 4.70.25 Unit : mm 3.05±0.25 1.06±0.25 0.5±0.1 3.80±0.3 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) ø2.1 0 ~ 6˚ 7.62±0.25 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 (1⁄2VCC) 5.08±0.1 1.7 1.5±0.1 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 27.4±0.3 21.6±0.3 1.2±0.25 ...