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Toshiba Electronic Components Datasheet

TC78H670FTG Datasheet

Bipolar Stepping Motor Driver

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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
2. Features
Weight: 22.9 mg (typ.)
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.
© 2019-2020
1
Toshiba Electronic Devices & Storage Corporation
Start of commercial production
2020-01
2020-07-02


Toshiba Electronic Components Datasheet

TC78H670FTG Datasheet

Bipolar Stepping Motor Driver

No Preview Available !

3. Pin Assignment
(Top View)
TC78H670FTG
MODE2 /
CLK /
S_CLK
16
MODE1 /
SET_EN /
LATCH
15
MODE0 /
UP-DW /
S_DATA
14
EN / ERR
13
MODE3 / CW-CCW 1
12 STBY
AGND 2
VM 3
TC78H670FTG
11 OSCM
10 VREF
PGND_A 4
9 PGND_B
5
OUT_A+
6
7
8
OUT_A- OUT_B- OUT_B+
Note: Please solder the corner pads and the rear thermal pad of the QFN package, to the GND pattern of the PCB.
2
2020-07-02


Part Number TC78H670FTG
Description Bipolar Stepping Motor Driver
Maker Toshiba
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