TB6562ANG_07 Datasheet, PDF (14/19 Pages) Toshiba Semiconductor – Dual Full-Bridge Driver IC for Stepping Motors

TB6562ANG/AFG
Application Circuit
The application circuit below is for reference only and requires thorough evaluation at the mass production design stage.
In furnishing this example of an application circuit, Toshiba does not grant the use of any industrial property rights.
(Note 2)
(Note 4) (Note 1)
5V
V_DD
PORT1
2
Vreg
3 SB
28
OSC
10 21 29
V_CC Vcc Vcc
OUT1A 11
PORT2
PORT3
PORT4
PORT5
PORT6
PORT7
PORT8
PORT9
GND
4 Phase A
5 XA1
6 XA2
27 Phase B
26 XB1
25 XB2
TB6562ANG/AFG
OUT2A 14
RSA 13
OUT1B 20
OUT2B 17
VrefA VrefB
12 19
GND
RSB 18
1, 7, 8, 9, 15, 16, 22, 23 24, 30
DAC output signal
Stepping
motor
Note 1: A power supply capacitor should be connected between V_CC and RSA (RSB), and as close as possible to
the IC.
Note 2: C2 and C3 should be connected as close as possible to S-GND.
Note 3:
In powering on, set the IC as follows:
SB = Low (standby mode)
or
XA1 = XA2 = XB1 = XB2 = High (current value = 0%)
Note 4: When the Vref is being changed, a DAC output can be connected directly to the Vref pin.
Note 5: The V_CC pins (pin 10, pin 21, pin 29) should be shorted externally.
Note 6: Connect the capacitor C4 to the Vref to reduce the switching noise.
14
2007-3-22