TB67S249FTG
Toshiba BiCD process integrated circuit silicon monolithic TB67S249FTG
Active Gain Control Clock-in control Bipolar stepping motor driver
The TB67S249FTG is a clock-in controlled bipolar stepping
motor driver with a built-in Active Gain Control architecture.
The TB67S249FTG also has an internal current feedback
control (ACDS) which enables the driver to control the motor
current without using a sense resistor.
Using the BiCD process, the TB67S249FTG is rated at 50 V,
4.5 A.
P-VQFN48-0707-0.50-004
Weight 0.14 g (typ.) Features Built-in Anti-stall architecture (AGC: Active Gain Control) Built-in sense resistor less current control architecture (ACDS: Advanced Current Detection System) Low Rds (on) MOSFET (High side+ Low side=0.33 О© (typ.) Built-in micro stepping control. (Full, Half (a), Half (b), Quarter, 1/8, 1/16, 1/32 step resolution) Multi error detect functions (Thermal shutdown (TSD), Over current protection (ISD), Power-on-reset
(POR), Motor load open (OPD) Error detection status output (Error Output) Internal VCC (5 V) regulator enables the driver to operate with a single power supply (VM). Adjustable constant current PWM frequency using external components Small package with thermal pad on back side (QFN48: 7.0 mm x 7.0 mm) Note: Please consider the heat condition when using the TB67S249FTG. В© 2017
Toshiba Electronic Devices & Storage Corporation 1 2017-08-18 TB67S249FTG
Pin assignment NC VMB VMB GND
NC GND VREFB VREFA VCC VCC OSCM NC (Top View) 36 35 34 33 32 31 30 29 28 27 26 25
NC 37 24 OUTB+ NC 38 23 OUTB+ DMODE0 39 22 RSBGND DMODE1 40 21 RSBGND DMODE2 41 20 OUTB-CW/CCW 42 CLK 43 ENABLE 44 17 OUTA-45 16 RSAGND MO 46 15 RSAGND LO1 47 14 OUTA+ LO2 48 13 OUTA+
3 4 5 6 7 8 9 10 11 12 AGC1 CLIM1 FLIM BOOST LTH GND NC
VMA NC 2 VMA 1 CLIM0 18 OUTA-AGC0 RESET 19 OUTB-TB67S249FTG Note: Please solder the corner pad and the rear thermal pad of the QFN package, to the GND pattern of the PCB. 2 2017-08-18 TB67S249FTG
Pin description
Pin No
1
2 …