ROHM Semiconductor BH6513FS
The BH6512FS / BH6513FS are 4-channel PWM drivers for driving the motors and actuators in CD and MD players.Optical disc ICs 4-channel PWM driver for CD and MD use BH6512FS / BH6513FS MOSFET output stages are employed to keep power consumption down, and a charge pump circuit is included to multiply the VG voltage. FApplications CD and MD players (portable units) FFeatures 1) Four power MOS H-bridges. 2) Charge pump ( 3). 3) PWM input. FAbsolute maximum ratings (Ta = 25_C) 4) Low on-resistance. 5) Low power consumption. 6) Compact SSOP-A32 package. FRecommended operating conditions (Ta = 25_C) 695 Optical disc ICs FBlock diagram BH6512FS / BH6513FS FPin descriptions 696 Optical disc ICs FInput / output circuits BH6512FS / BH6513FS 697 Optical disc ICs BH6512FS / BH6513FS FElectrical characteristics (unless otherwise noted, Ta = 25_C, VM = 2.5V, VDD = 3V, VG is the internally pumped output, fIN = 176kHz, and RL = 8Ω *47µH) FDriver truth table 698 Optical disc ICs FMeasurement circuit BH6512FS / BH6513FS 699 Optical disc ICs FOperation notes (1) The charge pump circuit is a 3 multiplier that uses the voltage on pin 30 as its reference.