TB6643KQ Datasheet PDF - Toshiba
| Part Number | TB6643KQ | |
| Description | Full-Bridge DC Motor Driver IC | |
| Manufacturers | Toshiba | |
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There is a preview and TB6643KQ download ( pdf file ) link at the bottom of this page. Total 15 Pages | ||
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TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6643KQ
Full-Bridge DC Motor Driver IC
The TB6643KQ is a full-bridge DC motor driver IC employing
the MOS process for output power transistors.
The low ON-resistance MOS process and PWM control enables
driving DC motors with high thermal efficiency.
Four operating modes are selectable via IN1 and IN2: clockwise
(CW), counterclockwise (CCW), Short Brake and Stop.
Features
Power supply voltage: 50 V (max)
Output current: 4.5 A (max)
Output ON-resistance: 0.55 (typ.)
PWM control
CW/CCW/Short Brake/Stop modes
Overcurrent shutdown circuit (ISD)
Overvoltage shutdown circuit (VSD)
Thermal shutdown circuit (TSD)
Undervoltage lockout circuit (UVLO)
Dead time for preventing shoot-through current
Weight: 2.2 g (typ.)
TB6643KQ
Note: The following conditions apply to solderability:
About solderability, following conditions were confirmed
(1) Use of Sn-37Pb solder Bath
solder bath temperature: 230°C
dipping time: 5 seconds
the number of times: once
use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder Bath
solder bath temperature: 245°C
dipping time: 5 seconds
the number of times: once
use of R-type flux
1
2011-06-21
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Thermal Performance Characteristics
14
12
10
(1)
8
PD – Ta
(1) With a heatsink (10°C/W):
Ta = 25°C, PD = 7.8 W
(2) No heatsink:
Ta = 25°C, PD = 1.25 W
*: With an infinite heatsink:
Rth (j-c) = 6°C/W
6
4
2 (2)
0
0 25 50 75 100 125 150
Ambient temperature Ta (°C)
TB6643KQ
Thermal Resistance
Pulse width t (s)
I/O Equivalent Circuits
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
Pin No.
I/O Signal
IN1 (1)
IN2 (2)
Digital input
L: 0.8 V (max)
H: 2 V (min)
I/O Internal Circuit
IN1 (IN2)
10 k
(typ.)
OUT1 (3)
OUT2 (5)
GND (4)
VM (7)
Operating supply voltage range
VM = 10 to 45 V
5-V regulator
VM
OUT1 (OUT2)
GND
5 2011-06-21
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TB6643KQ electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ TB6643KQ.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| TB6643KQ | The function is Full-Bridge DC Motor Driver IC. Toshiba | |
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