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PDF TB62205FG Data sheet ( Hoja de datos )
| Número de pieza | TB62205FG | |
| Descripción | Single-Stepping Motor Driver IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TB62205FG
TOSHIBA BiCD Process Integrated Circuit Silicon Monolithic
TB62205FG
Single-Stepping Motor Driver IC with Dual DC/DC Converter Driven by Chopper
Micro-Step Pseudo Sine Wave
The TB62205FG is a single-stepping motor driver with dual
DCDC converter driven by chopper micro-step pseudo sine wave.
To drive a two-phase bipolar-type stepping motor, a 16-bit latch
and a 16-bit shift register are built in the IC. The TB62205FG is
suitable for driving stepping motors at high efficiency and with
low-torque ripple, and supports Selectable Mixed Decay Mode for
switching the attenuation ratio at chopping.
Also, the IC incorporates two DCDC converters, enabling two
individually configurable power supplies.
Features
Weight: 0.79 g (typ.)
• One stepping motor driven by micro-step pseudo sine wave is
controlled by a single driver IC
• Enables to drive two-way supply voltage using a pair of step-down DC/DC converters
• Monolithic Bi-CMOS IC
Low ON-resistance of Ron = 0.7 Ω (@Tj = 25°C, 1.0 A: typ.)
• Motor block incorporating 16-bit serial-in shift register, 16-bit latch and 4-bit D/A converter for micro step
drives
• On-chip 5-V regulator for internal circuit, enaDbalitnagShsienegtl4eUp.ocwoemr supply operation (VM) for the motor
• On-chip ISD and TSD circuits, and internal VDD/VM power-on reset circuit as protection circuits
• On-chip charge pump circuit (two external capacitors)
• Package: 36-pin power flat package (P-HSOP 3620-450-0.65)
• Motor maximum power supply voltage: 30 V (max), motor output current: 0.7 A (max)
• DCDC converter maximum input current: 1.2 A (max), maximum load current: 0.96 (A)
• On-chip Mixed Decay Mode enables specification of four-stage attenuation ratio.
• Chopping frequency can be set by external oscillator. High-speed chopping is possible at 100 kHz or higher.
• Also, DCDC frequency can be set by the external OSC.
• To set chopping at 100 kHz or higher is possible
DataShee
Note: When using the IC, pay attention to thermal conditions.
These devices are easily damaged by high static voltage.
In regards to this, please handle with care.
A schottky barrier diode (SBD) should be inserted between the output pin of the DCDC converter and ground.
(Recommended device: Toshiba CMS07)
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TB62205FG
4. Output control circuit, current feedback circuit and current setting circuit for motor
driver
Micro-step current setting
data logic circuit
Chopping
reference circuit
Current
feedback
circuit
Current
setting
circuit
Output control
circuit
Phase
NF
set current
reached signal
RNF
set current
monitor signal
MIXED
DECAY
TIMMING
Charge Start
Output stop
signal
U1
U2
Output control circuit
L1
L2
Decay
mode
Mixed
Decay
Timming
circuit
OSC counter
OSC counter
Output circuit
et4U.com
Motor RESET
Output pin
VM
Internal VM + VDD (VH)
ISD (current
shutdown)
circuit
VMR circuit
Output RESET signal VDD VM
Charge
DataSheeth4apUltus.mcigopnmal
Reset signal
selector
circuit
Power supply for
upper output
MOS transistors
VH
Charge pump
circuit
VHR circuit
Thermal
shut down
(TSD) circuit
Protection circuit
Charge pump
circuit
VM-VDD
regulator
MICRO-STEP
CURRENT
SETUP LATCH
CLEAR signal
VDDR: VDD power on monitor
VMR : VM power on monitor
ISD : Current shutdown circuit
TSD : Thermal shutdown circuit
Logic
MIXED DECAY TIMMING
TABLE CLEAR
signal
Output
circuit
Ccp A
Ccp B
Ccp C
VM
internal VDD
DataShee
Note: The Motor RESET , and SETUP pins are pulled down in the IC by a 100-kΩ resistor.
When these pins are not used, connect them to ground. If they are left open, malfunction may occur.
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TB62205FG
Table for Setting (2) D1, D2, D3, D4, D8, D9, D10, D11
Setting Current
Setting Angle
Data Bit
Step
A3
A2
A1
A0
B3
B2
B1
B0 (degree)
1 16 1 1 1 1 0 0 0 0
90
2 15 1 1 1 1 0 0 0 1
3 14 1 1 1 0 0 0 1 0
84
79
4 13 1 1 0 1 0 0 1 1
12 1 1 0 0 0 1 0 0
8 11 1 0 1 1 0 1 0 1
73
68
61
9 10 1 0 1 0 0 1 1 0
10 9 1 0 0 1 0 1 1 1
11 8 1 0 0 0 1 0 0 0
7 01111001
6 01101010
56
51
45
39
34
5 01011011
4 01001100
3 00111101
28
23
17
2 00101110
1 00011111
11
6
0 00001111
0
et4U.com
Table for Setting (3) D5, D6, D12, D13
Setting Decay Mode
DataSheet4U.com
Data Bit
5
6
Name
Decay Mode A1
Decay Mode A0
Function
Decay Mode 1 Decay Mode 0
Setting Value
Decay Mode
Setting Decay Mode
0
0 Mixed Decay Mode: 12.5%
0 1 Mixed Decay Mode: 37.5%
1 0 Mixed Decay Mode: 75.0%
1 1 Fast Decay Mode
DataShee
Table for Setting (3) D7
Setting Phase B
Data Bit
7
Name
Phase B
Function
Switching phases
(+side, −side)
Phase
0
1
Setting Value
Phase
OUT B = L, OUT B = H
OUT B = H, OUT B = L
Table for Setting (3) D14, D15
Setting Torque
Data Bit
0
1
DataSheet4U.com
Name
Torque 0
Torque 1
Function
Setting current range
Torque 1
0
0
1
1
11
Torque 0
0
1
0
1
Setting Value
Torque (typ.)
25%
50%
75%
100%
2005-04-04
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11 Page | ||
| Páginas | Total 36 Páginas | |
| PDF Descargar | [ Datasheet TB62205FG.PDF ] | |
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