TB62212FTAG TOSHIBA BiCD Process Integrated Circuit Silicon Monolithic TB62212FTAG PWM Chopper Type Dual-Stepping Motor Driver The TB62212FTAG is a PWM chopper type dual-stepping motor driver. Two stepping motor drivers can drive up to four brushed DC motors. Incorporating two pairs of H-bridge drivers, the TB62212FTAG can drive two DC motors or a single stepping motor. Features Single-chip motor driver for bipolar stepping motor control Weight: 0.14 g(typ.) Monolithic IC structured by BiCD process. Low ON-resistance: R = 2.2 on (Upper and lower sum of P- and N-channel output transistors: Tj = 25C 0.6 A typ.) In large mode, ON-resistance of combined H-bridges is: R = 1.1 (Upper and lower sum of P- and N-channel on output transistors: Tj = 25C 0.6 A typ.) Over-current detection (ISD), thermal shutdown (TSD) and V power-on reset circuits M Since the IC incorporates a V regulator for internal circuit operation, an external power supply (5 V) is not CC required. Package: Quad leadless package with a backside heat sink (QFN48-P-0707-0.50: 0.5-mm lead pitch) Maximum output withstand voltage: 40 V Output current: 2.0 A (max) in DC (S) mode 1.5 A (max) in Stepping (S) mode Chopping frequency can be set by external oscillator. High-speed chopping is possible at 100 kHz or higher. Note) This product is sensitive to electrostatic discharge. Please handle with care ESD Weak pin value condition HBM 4,6,8,10,27,29,31,33 -1.2kV Reference 19pin (VM) 1 2014-10-01 2014 TOSHIBA Corporation TB62212FTAG Block Diagram and Pin Layout (Brushed DC Motor(S) 4-Axis Control Mode) 36 35 34 33 32 31 30 29 28 27 26 25 ENABLE B 37 (Note 2) 24 Mode 2 3 ENABLE A 38 Pre- Pre- 23 Digital tBLANK CD driver driver Rs D 39 22 Digital tBLANK AB Rs D 40 21 Rs C ISD TSD ISD Comparator Comparator OSCM 41 20 Rs C V 42 Regulator 19 V CC M Controller Rs A 43 18 GND Rs A 44 17 Rs B Comparator Comparator ISD ISD PHASE A 45 16 Rs B PHASE B 46 15 V D ref Pre- Pre- NC 47 14 V C driver driver ref NC 48 13 NC 1 2 3 4 5 6 7 8 9 10 11 12 Note 1: GND wiring: We recommend that a heat sink be grounded at any parts, and the board and output pins be grounded at only one contact point. Take the heat dissipation into consideration when designing the board. When in controlling the setting pins for each mode by SW, those pins should be pulled up to power supply like V or pulled down to GND not to go into a high-impedance (Hi-Z) state. CC Utmost care is necessary in the design of the output line, V line and GND line since IC may be destroyed M due to short-circuit between outputs, to supply, or to ground. Especially for those pins that are connected to power supply and get a large current flow (such as V , RS, M OUT and GND), they should be properly wired otherwise troubles including destruction may occur to this IC. If the logic input pins are not wired properly, malfunction that would destroy the IC may occur due to a large current exceeding the absolute maximum ratings. Care should be taken in the design of board layouts and implementation of the IC. Note 2: Mode (2, 1, 0) (H, H, H) = stepper S 2 (H, H, L) = DC L 2 (H, L, H) = stepper L (H, L, L) = DC S 4 (L, H, H) = DC L + stepper s (L, H, L) = DC S 2 + stepper s 2 2014-10-01 NC NC PHASE C ENABLE C PHASE D ENABLE D OUT A OUT D GND GND OUT A+ OUT D+ GND GND OUT B+ OUT C+ GND GND OUT B OUT C V A Mode 0 ref V B Mode 1 ref