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TB62214AFNG,C8,EL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
TB62214AFNG
2012-04-17
4
Pin Function
Pin
No.
Pin Name Function
Pin
No.
Pin Name Function
1 OSCM Oscillator pin for PWM chopper 25 GND Motor power ground
2 NC No connect 26 OUT_B2
3 CW/CCW Motor rotation: forward/reverse 27 OUT_B1
B-phase negative driver output
4 MO_OUT Electric angle monitor 28 NC No connect
5 D_MODE_1 Excitation mode control 1 29 GND Motor power ground
6 NC No connect 30 NC No connect
7 D_MODE_2 Excitation mode control 2 31 NC No connect
8 CLK
An electrical angle leads on the rising edge of
the clock input. A motor rotation count depends
on the input frequency.
32 OUT_B2
9 ENABLE A-/B-channel output enable 33 OUT_B1
B-phase positive driver output
10 RESET Electric angle reset 34 NC No connect
11 GND Logic ground 35 RS_B2
12 NC No connect 36 RS_B1
Power supply of B-phase motor coil and the sink
current sensing of B-phase motor coil
13 RS_A1 37 NC No connect
14 RS_A2
Power supply of A-phase motor coil and the sink
current sensing of A-phase motor coil
38 NC No connect
15 NC No connect 39 V
M
Power supply
16 OUT_A1 40 NC No-connect
17 OUT_A2
A-phase positive driver output
41 VCC Smoothing filter for logic power supply
18 NC No connect 42 NC No connect
19 NC No connect 43 NC No connect
20 GND Motor power ground 44 NC No connect
21 NC No connect 45 NC No connect
22 OUT_A1 46 GND Logic ground
23 OUT_A2
A-phase negative driver output
47 VREF_B Tunes the current level for A-phase motor drive.
24 GND Motor power ground 48 VREF_A Tunes the current level for A-phase motor drive.
Pin Interfaces
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes. Absolute precision of the chip internal resistance is +/-30%.
1
1k
500
46
3
100k
5
150
7
8
46
9
10
13
39
8k
3k
3k
36
24
14
20
16
17
22
23
33 27
32 26
25 29
35
47
1k
48
41
46
4
46
150
100k
11
11
11
11
TB62214AFNG
2012-04-17
5
CLK Function
The electrical angle leads one by one in the manner of the clocks. The clock signal is reflected to the electrical
angle on the rising edge.
CLK Input Function
Rise The electrical angle leads by one on the rising edge.
Fall Remains at the same position.
ENABLE Function
The ENABLE pin controls whether or not to let the current flow through a given phase for a stepper motor drive.
This pin serves to select if the motor is stopped in Off mode or activated. The pin must be fixed to Low on the
power-on or power-down of the TB62214AFNG. During power on, once the VM voltage has reached the voltage
required to operate the motor, set this to High.
ENABLE Input Function
H Output transistors are enabled (normal operation mode).
L Output transistors are disabled (high impedance state).
CW/CCW Function
The CW/CCW pin switches rotation direction of stepper motors.
The CW pin outputs the A-phase current 90° behind than the B-phase current.
The CCW pin outputs the A-phase current 90° ahead of the B-phase current.
CW/CCW Input Function
H Forward (CW)
L Reverse (CCW)
Excitation Mode Select Function
D_MODE_1 D_MODE_2 Function
L L OSC_M, output transistors are disabled (in Standby mode)
L H Two-phase excitation
H L 1-2-phase excitation
H H W1-2-phase excitation
RESET Function
The RESET function resets the electrical angle. Always set this to H during power on. Once the VM voltage has
reached the voltage required to operate the motor, release RESET.
RESET Input Function
L Normal operation mode
H The electrical angle is reset.
The phase current while RESET is applied is shown in the table below. MO_OUT is Low at this time.
Excitation Mode A-phase Current B-phase Current
2 Phase 100% 100%
1 – 2 Phase 100% 100%
W1-2 Phase 71% 71%
TB62214AFNG
2012-04-17
6
Detection Features
(1) Thermal shutdown (TSD)
The thermal shutdown circuit turns off all the outputs when the junction temperature (T
j
) exceeds 150°C
(typ.). The outputs retain the current states.
The TB62214AFNG exits TSD mode and resume normal operation when the TB62214AFNG is rebooted or
both the D_MODE_1 and D_MODE_2 pins are switched to Low.
(2)
Power-ON-resets (PORs) for V
MR
and VCC
R
(V
M
and VCC voltage monitor)
The outputs are forced off until V
M
and VCC reach the rated voltages.
(3)
Overcurrent shutdown (ISD)
Each phase has an overcurrent shutdown circuit, which turns off the corresponding outputs when the
output current exceeds the shutdown trip threshold (above the maximum current rating: 2.0 A minimum).
The TB62214AFNG exits ISD mode and resumes normal operation when the TB62214AFNG is rebooted or
both the D_MODE_1 and D_MODE_2 pins are switched to Low.
This circuit provides protection against a short-circuit by temporarily disabling the device. Important notes
on this feature will be provided later.
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TB62214AFNG,C8,EL

Mfr. #:
Buy TB62214AFNG,C8,EL
Manufacturer:
Toshiba
Description:
Motor / Motion / Ignition Controllers & Drivers Stepping Motor Driver IC
Lifecycle:
New from this manufacturer.
Delivery:
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