TA8411L Datasheet | Toshiba

Features CMOS-patible input level (built-in pull-down resistor) Two built-in biphase, bipolar stepping motor drivers (bipolar driving and chopper type) Built-in push-pull driver Built-in register reset circuit Operating output voltage range: VM = 0 to 27 V Operating supply voltage range: VCC = 4.5 to 5.5 V 1 2003-08-22 Block Diagram Note 1: Capacitance connect to each Power Supply Terminal is required to change to optimum value for noise elimination and also required to connect directly to each Power Supply Terminal (VCC, VM1, 2) and the corresponding GND Terminal (See Table 1) for stable operations. Table 1 Power Supply Pin (7) (SG) Pin (23) (PG) Pin (14) (PG) Pin (5) (VCC) Pin (19) (VM- AB) Pin (18) (VM- CD), Pin (9) (VM- E) Note 2: Be careful when mounting a heat radiator because the heat sink is grounded via a low resistance. 2 2003-08-22 Pin Function PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin Connection Symbol NF A OUT A S- IN CK VCC STROBE SG OSC VM- E OUT E OUT D NF D OUT D PG NF C OUT C OUT C VM- CD VM- AB OUT B OUT B NF B PG OUT A Functional Description A channel current detection output terminal. OUTPUT A Serial signal input terminal. Clock signal input terminal. Supply voltage terminal for control circuit. STROBE signal input terminal. Signal GND terminal. Internal osc frequency setting terminal. E channel power supply input terminal. E channel output terminal. (pushpull output) OUTPUT D D channel current detection output terminal. OUTPUT D Power GND terminal. C channel current detection output terminal. OUTPUT C OUTPUT C Supply voltage terminal for C channel D channel. Supply voltage terminal for A channel B channel. OUTPUT B OUTPUT B B channel current detection output terminal. Power GND terminal. OUTPUT A 3 2003-08-22 Input Serial Pulse Train (Pin (3)) and Power Output States Serial Input Signal Train Control Operation 1 E2 DC Motor Control 2 E1 Input E1 E2 LL HL LH...