HA13561F Datasheet | Hitachi Semiconductor

Description This BO Driver for HDD application consists of Sensorless Spindle Driver and BTL type VCM Driver. Bipolar Process is applied and a “Soft Switching Circuit” for less mutation noise and a “Booster Circuit’ for smaller Saturation Voltage of Output Transistor are also implemented. Features - Soft Switching Driver Small Surface Mount Package: FP-80E (QFP80 Pin) Low thermal resistance: 35°C/W with 6 layer multi glass-epoxy board - Low output saturation voltage  Spindle 0.8 V Typ (@1.0 A)  VCM 0.8 V Typ (@0.8 A) Functions - - - - - - - - - - 1.8 A Max/3-phase motor driver 1.2 A Max BTL VCM Driver Auto retract Soft Switching Matrix Start up circuit Booster Speed Discriminator Internal Protector (OTSD, LVI) POR Power monitor Pin Arrangement RETON RETPOW Vpsv LVI2 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 VBST VCMP VCMN BC2 BC1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OPIN(-) VCTL OPIN(+) RESINH VREF1 60 POUT 59 NC- 58 NC- 57 GAIN 56 VCMENAB 55 54 53 52 51 50 49 48 47 46 45 POR 44 SPNENAB 43 READY 42 CLOCK 41 CNTSEL W RNF PP CT V 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 U C-PUMP CLREF R1 Vpss - NC : No internal connection Please note that there is no isolation check between pin 58 and pin 59 at the testing of this IC. (Top View) Vss LVI1 DELAY M POLSEL Pin Description Pin Number Pin Name 1 2 3 4 5 6 to 15 16 17 18 19 20 21 22 23 24 25 26 to 35 36 37 38 39 40 41 42 43 44 45 46 to 55 56 57 VBST VCMP VCMN BC2 BC1 GND W RNF PP CT V U C-PUMP CLREF R1 Vpss GND VSS LVI1 DELAY M POLSEL CNTSEL CLOCK READY SPNENAB POR GND VCMENAB GAIN Function Boosted voltage output to realize the low output saturation voltage Output terminal on VCM driver Output terminal on VCM driver To be attached the external capacitor for booster circuitry ditto Ground pins W phase output terminal on spindle motor driver Sensing input for output current on spindle motor driver To be attached the...