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PDF SDC277 Data sheet ( Hoja de datos )
| Número de pieza | SDC277 | |
| Descripción | Switch Hall IC | |
| Fabricantes | SDC | |
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Switch Hall IC
Datasheet
SDC277
General Description
Features
The SDC277 is an integrated circuit which includes Hall
Tsensor and output drive circuits. It’s widely used in
2-phase brushless DC motor and Fan. It’s composed of
Npower reverse protection circuit, high stable voltage
Eregulator, Hall voltage generator, a differential amplifier,
Schmitt trigger and open collector output (DO, DOB).
MIn the case of power supply reverse connecting, the
Uinternal protection diode can protect IC but not protect
OCcoil, a protection diode can be added if necessary.
Wide operating voltage range: 3.5V~20V
250mA(AVG) output sink current
Building-in protection diode
Operating temperature range: -20°C~85°C
Package: TO-94
Applications
Brushless DC motor
Brushless DC fan
Revolution counting
Speed measurement
CONFIDENTIAL DTO-94
SDC
Figure 1. Package Type
August, 2014 Rev. 1.3
©2014 Shaoxing Devechip Microelectronics Co., Ltd.
1/8
www.sdc-semi.com
1 page  
Switch Hall IC
Datasheet
SDC277
Magnetic Characteristics (Ta=25°C,VCC=12V, unless otherwise specified)
VDO
TOff-state
ENBH
VDOB
Off-state
BH
CUMN BRP
DOGrade A
Parameter
LOperate point
IARelease point
TGrade B
Parameter
NOperate point
ERelease point
IDGrade C
Parameter
FOperate point
NRelease point
OGrade D
CParameter
On-state
0 BOP
SN
BRP
Figure 4. Magnetic Characteristics
On-state
0 BOP
Symbol
B OP
B RP
Min Max
20 50
-50 -20
Symbol
B OP
B RP
Min Max
10 70
-70 -10
Symbol
B OP
B RP
Min Max
- 90
-90 -
Symbol
Min Max
S
Unit
GS
GS
Unit
GS
GS
Unit
GS
GS
Unit
Operate point
SDCRelease point
BOP - 125
BRP -125 -
GS
GS
August, 2014 Rev. 1.3
©2014 Shaoxing Devechip Microelectronics Co., Ltd.
5/8
www.sdc-semi.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SDC277.PDF ] | |
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