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PDF UM2640 Data sheet ( Hoja de datos )
| Número de pieza | UM2640 | |
| Descripción | TWO-PHASE UNIPOLAR DC BRUSHLESS MOTOR PRE-DRIVER IC | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
UM2640
Preliminary
TWO-PHASE UNIPOLAR DC
BRUSHLESS MOTOR
PRE-DRIVER IC
DESCRIPTION
UTC UM2640 is a 2-phase pre-driver IC for unipolar DC brushes
motors. It features high voltage bipolar technology so that the driver
works up to 48V. High voltage operation delivers more power and
improves power supply efficiency. Therefore, it is suitable for high
voltage fan motor applications.
FEATURES
* Wide supply voltage range of 4V~55V
* Absolute Maximum Voltage 60V
* Lock protection.
Auto-restart when the motor lock is undone.
* Lock Alarm Output Terminal
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UM2640L-SO8-R
UM2640G-SO8-R
UM2640L-SO8-T
UM2640G-SO8-T
Package
SOP-8
SOP-8
CMOS IC
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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UM2640
Preliminary
CMOS IC
APPLICATION INFORMATION
The UTC UM2640 is a two-phase unipolar DC brushes motor pre-driver IC that features high voltage process
technology so that the driver works up to 60V.
It is suitable for high voltage fan motor applications where 48V operation is required.
[example of application circuit]
[Design Notes]
Above application example is designed for 48V operation with motor current of 300mA. It uses the following
components:
Hall Elements: HW101A (AKD)
TR1, TR2: 2SC4027A (UTC)
1. Design of R4 and R5
R4 = VCC - VBE - VCE
IB
Where; VCC is 48V, VCE of UTC UM2640 is 1.5V, VBE of TR1 is 0.7V. IB is the base current of TR1.
The pull down resistance R5 (connected to TR1) influences turn-off time of TR1.
A typical R5 value is ranging from 1kΩ to 10kΩ. It is highly recommended to determine the value with actual
application for better noise performance.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet UM2640.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| UM2640 | TWO-PHASE UNIPOLAR DC BRUSHLESS MOTOR PRE-DRIVER IC | Unisonic Technologies |
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