HA13705

HA13614FH Combo (Spindle & VCM) Driver ADE-207-246D (Z) Preliminary 5th Edition October 1998 Description This COMBO driver for HDD application consists of sensorless spindle driver and BTL type VCM driver. “PWM soft switching function” for low power dissipation and less commutation acoustic noise at the same time is implemented by using the IPIC* process. Note: Intelligent P ower IC Features PWM soft switching drive Small surface mount package: FP-48T Low thermal resistance: 30°C/W with 4 layer multi glass-epoxy board Low output on resistance  Spindle 1.2 Ω Typ  VCM 1.4 Ω Typ TTL compatible input level (with 3.3 V logic interface) High precision reference voltage output (for 3.3 V power supply) Functions 16 bit serial port 2.0 A Max/3-phase spindle motor driver with PWM soft switch function 1.5 A Max BTL VCM driver with low crossover distortion PWMDAC for VCM drive current control Power off brake function for spindle motor Auto retract with constant output voltage Booster Internal Protector (OTSD, LVI) Precision power monitor OP amplifier HA13614FH Pin Arrangement VIPWML 12VGOOD DATA SEENAB SCLK CLK 42 41 40 39 38 37 36 COMM 35 PHASE 34 SPNCTL 33 UFLT 32 NFLT 31 VpsIN POR LVI1 DELAY DACOUT VREF VIPWMH TABGND 48 47 46 45 44 43 OP1OUT OP1IN(−) OP2IN(+) Vss OP2OUT PC 1 2 3 4 5 6 TABGND TABGND VCMPS VCMN Rs VCMIN VCMP VCMSLC 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 30 VpsOUT 29 FLTOUT 28 Vpss 27 W 26 ISENSE 25 CT RETPOW R...