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PDF TB62206FG Data sheet ( Hoja de datos )
| Número de pieza | TB62206FG | |
| Descripción | BiCD PWM 2-Phase Bipolar Stepping Motor Driver | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TOSHIBA BiCD Processor IC Silicon Monolithic
TB62206FG
BiCD PWM 2−Phase Bipolar Stepping Motor Driver
TB62206FG
The TB62206FG is designed to drive a 2−phase bipolar
setpping motor. With BiCD process technology, this device
enables output withstand voltage of 40 V and maximum current
of 1.8 A to be achieved.
Features
• Bipolar stepping motor driver IC
• Internal PWM current control
• 2−phase/1−2 phase excitation is available
• Monolithic BiCD IC
DMOS FET used for output power transistor
Weight: 0.79 g (typ.)
• High voltage output and High current: 40 V/1.8 A (max)
• On−chip thermal shutdown circuit, overcurrent protection circuit and power−on reset circuit (POR)
• Package: HSOP20−P−450−1.00
Pin Assignment
CR 1
VDD
Vref A
Vref B
RS B
FIN (GND)
RS A
VM
Ccp C
Ccp B
Ccp A 10
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OUT B
ENABLE B
ENABLE A
OUT B
FIN (GND)
OUT A
PHASE B
PHASE A
OUT A
11 STANDBY
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TB62206FG
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Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Logic supply voltage
Motor supply voltage
Output current
(Note 1)
Current detect pin voltage
Charge pump pin maximum voltage
(CCP1 pin)
Logic input voltage
(Note 2)
Power dissipation
(Note 3)
(Note 4)
Operating temperature
Storage temperature
Junction temperature
VDD
VM
IOUT
VRS
VH
VIN
PD
Topr
Tstg
Tj
7
40
1.8
VM ± 4.5 V
VM + 7.0
to VDD + 0.4
1.4
3.2
−40 to 85
−55 to 150
150
V
V
A/phase
V
V
V
W
°C
°C
°C
Note 1: Perform thermal calculations for the maximum current value under normal conditions. Use the IC at 1.5 A or
less per phase.
The current value maybe controled according to the ambient temperature or board conditions.
Note 2: Input 7 V or less as VIN
Note 3: Measured for the IC only. (Ta = 25°C)
Note 4: Measured when mounted on the board. (Ta = 25°C)
Ta: IC ambient temperature
Topr: IC ambient temperature when starting opDeraattaioSnheet4U.com
Tj: IC chip temperature during operation Tj (max) is controlled by TSD (thermal shut down circuit)
Recommended Operating Conditions (Ta = 0 to 85°C, (Note 5))
Characteristics
Symbol
Test Condition
Min Typ. Max Unit
Power supply voltage
Motor supply voltage
Output current
Logic input voltage
Phase signal input frequency
Chopping frequency
Vref reference voltage
Current detect pin voltage
VDD
VM
IOUT (1)
VIN
fPHASE
fchop
Vref
VRS
⎯
VDD = 5.0 V, Ccp1 = 0.22 µF,
Ccp2 = 0.02 µF
Ta = 25°C, per phase
⎯
VDD = 5.0 V
VDD = 5.0 V
VM = 24 V, Torque = 100%
VDD = 5.0 V
4.5 5.0 5.5
13 24 35
⎯ 1.2 1.5
GND ⎯ VDD
⎯ 1.0 150
50 100 150
GND 3.0
4.0
0 ±1.0 ±4.5
V
V
A
V
KHz
KHz
V
V
Note 5: Because the maximum value of Tj is 120°C, recommended maximum current usage is below 120°C.
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TB62206FG
Current Discharge Path when ENABLE Input During Operation
In Slow Mode, when all output transistors are forced to switch off, coil energy is discharged in the
following MODES:
Note: Parasitic diodes are located on dotted lines. In normal MIXED DECAY MODE, the current does not flow
to the parasitic diodes.
VM
RRS
VM
RRS
VM
RRS
RS pin
U1
U2 U1
RS pin
U2 U1
RS pin
U2
ON
(Note)
OFF OFF
(Note)
OFF OFF
(Note)
OFF
OFF
L1
Load
ON ON
L2 L1
Load
Input ENABLE
L2 L1
ON OFF
Load
L2
OFF
et4U.com
PGND
Charge mode
PGND
Slow mode
PGND
Forced OFF mode
As shown in the figure above, an output transistor has parasitic diodes.
To discharge energy from the coil, each transistor is switched on allowing current to flow in the reverse
direction to that in normal operation. As a result, the parasitic diodes are not used. If all the output
transistors are forced to switch off, the eDnaetragSy hofetehte4cUo.icl oismdischarged via the parasitic diodes.
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11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet TB62206FG.PDF ] | |
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