TB67S158NG Toshiba

TB67S158NG TOSHIBA Bi-CD Integrated Circuit Silicon Monolithic TB67S158NG 1. Summary/Features/Appearance Constant voltage control DMOS driver incorporating 2 function modes (full parallel input and serial input). Summary NG The TB67S158 is a constant voltage control DMOS driver. It can operate maximum of two unipolar stepping motors (max). MODE1: Full parallel input (similar to transistor array) MODE2: Serial input P-SDIP24-0723-1.78-001 Output voltage of 80V and maximum current of 1.5A are realized by applying BiCD process. Motor can be driven by single power supply of VM with the internal regulator. Weight: 1.4g(typ.) Features Capable of operating maximum of two 2-phase unipolar stepping motors by one chip. High voltage and current (as for specifications, please refer to the absolute maximum ratings and operation ranges). Low on resistance (Ron=0.5 (typ.)) of output step is realized by BiCD process. Built-in VCC regulator for internal circuit control (capable of operating by only VM power supply) Capable of constant voltage driving (corresponding to 2-phase and 1-2-phase excitation drives) Built-in thermal shutdown circuit (TSD), over current detection (ISD), and power on reset of VM power supply. ALERT signal can be outputted to outside when thermal shutdown circuit (TSD) or over current detection (ISD) operates. Note) Please be careful about the thermal conditions during use. 2014 Toshiba Corporation 1 2015-5-11 TB67S158NG 2. Block diagram: MODE1 (Full parallel mode) Ach Ach OUT A+ IN A1 Polarity and Angle Pre OUT OUT A- control A IN A2 drv Nch2 VCOMAB Bch Bch IN B1 Polarity and Angle Pre OUT OUT B+ control B IN B2 drv Nch2 OUT B- MODE MODE Control Error detect ERR (TSD/ISD) Internal OSC POR VM Pre TSD VCC regulator Cch Cch OUT C+ IN C1 Polarity and Angle Pre OUT OUT C- control C IN C2 drv Nch2 VCOMCD Dch Dch IN D1 Polarity and Angle Pre OUT OUT D+ control D IN D2 drv Nch2 OUT D- 2 2015-5-11