Hitachi HA13536F
The HA13536F is a 3-phase brushless DC motor driver IC with digital speed control. It is being developed for direct drive of the spindle motor of 5 V floppy disk drives with a height of 3/4" or less. It has the following functions and features.DESCRIPTION
It has the following functions and features. Functions●
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● 1.0 A per phase, 3-phase drive circuit (current driver) Digital speed control circuit FG Amp Index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD)
FEATURES
● Low saturation voltage, typically 1.15 V (at 0.7 A)● Soft switching drive circuit
● No need for an output snubber circuit HA13536F Pin Arrangement U phase – input U phase + input VCC V phase V phase W phase W phase + – + – input input input input 20 19 18 21 22 23 24 TAB TAB 17 16 15 14 13 12 11 TAB 10 9 8 7 Hall bias Bias – pin Bias + pin Bias output U phase output V phase output Current detection AGC Index + input Index – input FG + input 25 26 27 28 1 2 3 TAB 4 5 6 W phase output Phase compensation Charge pump output CLK input FG – input RPM SEL Index adjust (Top view) 2 Index Vreg Index output CE HA13536F Block Diagram VCC C102 25 R101 Hu R102 Hv 19 20 21 22 Hw 23 24 Hi 26 27 3 Rt1 Ct 4 Rt2 17 – 16 C104 15 CE 6 CLK 7 1 MHz 1.6 V FG 60 ppr C103 TAB Note : Pin arrangement is preliminary specification.