FD128NX

FD128MX/FD128NX Technology General Description „ Single Phase Smart DC Motor Driver IC The FD128 series is a direct PWM drive IC with single-phase and bipolar drive. The IC is suitable for variable speed control Fan of PC. Features „ „ „ „ „ „ „ „ Single-phase coil driver, applied to fan or motor. Lock function built-in and a lock detect output signal (RD). Thermistor or PWM modes are available for speed control. An external capacitor (CO) is necessary for lock function. An external capacitor (CP = 47pf) for internal 25KHz saw-tooth wave Thermal Shutdown built-in. Hall IC input (INN) can use as rotation output (FG) Internal minimum speed Function Block Diagram RD CO Lock Detect VL VDD Regulator SO INN Controller NO TSD Oscillation Circuit VSET CP GND This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Rev0.6 Aug. 01, 2008 P.1 FD128MX/FD128NX Technology Pin Assignment VSET INN Single Phase Smart DC Motor Driver IC VDD VDD SO NO CO FD128NX Absolute Maximum Ratings Parameter Supply Voltage Output Current Output Supply Voltage VSET input Range RD output supply voltage RD output current Maximum power dissipation Output continous current Outpur lock current Outpur Peak current Thermal shutdown protect Operating Temperature Storage Temperature Junct...