Datasheet TC78H670FTG (Toshiba)

TC78H670FTG TOSHIBA CD process Integrated Circuit Silicon Monolithic
TC78H670FTG
Clock-in and Serial controlled Bipolar Stepping Motor Driver
1. Outline
The TC78H670FTG is a two-phase bipolar stepping motor driver using a PWM chopper which incorporate DMOS with low on-resistance in output transistors. The clock-in decoder is built in. P-VQFN16-0303-0.50-001 Weight: 22.9 mg (typ.)
2. Features
• Built-in Dual H Bridges, Capable of controlling 1 bipolar stepping motor • PWM controlled constant-current drive • Power supply operating voltage: 2.5 V to 16.0 V • Output current ratings: 2.0 A (max) • Low on-resistance (High + Low side = 0.48 Ω (typ.)) MOSFET output stage • Allows full, half, quarter, 1/8, 1/16, 1/32, 1/64, 1/128 step operation • Built-in Sense resistor less current control architecture (Advanced Current Detection System) • Multi error detect functions (Thermal shutdown (TSD), Over current (ISD), motor load open (OPD) and Under voltage lockout(UVLO)) • Error detection (TSD/ISD/OPD) flag output function • Built-in VCC regulator for internal circuit • Chopping frequency of a motor can be adjusted by external resistor • Small QFN package with thermal pad (16pin) Note: Please be careful about thermal conditions during using. Note: It is possible to detect OPD only when Serial mode is selected. Start of commercial production 2020-01 © 2019 1 2019-11-28 Toshiba Electronic Devices & Storage Corporation