TA8428FG(O,EL) Toshiba

TA8428K/FG TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8428K, TA8428FG DC MOTOR FULL-BRIDGE (H-BRIDGE) DRIVER ICs (Forward/reverse switching driver ICs) TA8428K The TA8428K, TA8428FG is Full Bridge Driver IC for Brush Motor Rotation Control. Forward Rotation, Reverse Rotation, Stop and Braking operations are available. FEATURES z Output Current : TA8428K 1.5 A (AVE.), 3.0 A (PEAK) TA8428FG 0.8 A (AVE.), 2.4 A (PEAK) TA8428FG z 4 modes (forward/reverse/short brake and stop) are available with 2 TTL compatible inputs control. Free-wheeling diodes for back-EMF protection are equipped. z Thermal shutdown and overcurrent protection circuits z Operating voltage range: V = 7.0 V to 27.0 V CC Weight HSIP7P2.54 : 1.88 g (Typ.) The TA8428FG is RoHS compatible. HSOP20P4501.00 : 0.79 g (Typ.) The TA8428K is a Sn-plated product. (The Pb-containing materials with a high melting point that are exempted from RoHS directives are used inside the IC.) About solderability, following conditions were confirmed Solderability (1) Use of Sn-37Pb solder Bath solder bath temperature: 230C dipping time: 5 seconds the number of times: once use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath solder bath temperature: 245C dipping time: 5 seconds the number of times: once use of R-type flux Terminals of TA8428 written below are sensitive to electrostatic discharge. When handling this product, ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at reasonable levels. Terminals which are sensitive to electrostatic discharge: No. 1 and 2 (TA8428K , No. 8 and 9 (TA8428FG) The IC should be installed correctly. Otherwise, the IC or peripheral parts and devices may be degraded or permanently damaged. 1 2010-02-23 TA8428K/FG BLOCK DIAGRAM TA8428K TA8428FG PIN FUNCTION PIN No. SYMBOL FUNCTIONAL DESCRIPTION K FG 1 8 IN1 TTL compatible control inputs. 2 9 IN2 (PNP type low active comparator inputs) Connection pin for a DC motor, which can sink and source currents of up to 1.5 A (TA8428K) or 0.8 A 3 15 OUTA (TA8428FG). Two free-wheeling diodes are internally connected to this pin one is between this pin and GND and the other is between this pin and V . CC 4 Fin GND GND terminal Connection pin for a DC motor. This pin has the same 5 16 OUT A function as the OUT A pin. 6 Other pin N.C Non connection 7 1, 3 V Supply voltage terminal for control and motor drive. CC MULTI-PROTECTION CIRCUITS TA8428K, TA8428FG has 2 buildin protective functions which work independently. These circuit operations are as follows. Note 1: These protection features are provided to temporarily avoid abnormal conditions such as output short circuits and are not guaranteed to prevent the IC from being damaged. Note 2: These features do not operate outside the guaranteed operating ranges and the IC may be permanently damaged in case of output short circuits. 2 2010-02-23