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PDF SDC280 Data sheet ( Hoja de datos )

Número de pieza SDC280
Descripción Smart Two-Phase DC Fan
Fabricantes SDC 
Logotipo SDC Logotipo



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Smart Two-Phase DC Fan
Datasheet
SDC280
General Description
Features
SDC280 is a CMOS integrated circuit which includes Hall
Tsensor and output drive circuits. It’s widely used in
various small two-phase fans and DC motors. The locked
Nprotection and auto-restart function is integrated inside
Ethe IC. Input offset voltage can be dynamically adjusted by
built-in chopper amplifier, greatly improving the magnetic
Mfield sensitivity. It is built-in power reverse protection
L DOCUfunction.
High voltage CMOS technology
Peak output current up to 1A
Operating voltage range:3.5V~24V
Sustainable 350mA operating current
High sensitivity Hall sensor
Locked protection and auto-restart
Power reverse protection
Including protection diodes to clamp the output
Operating temperature: -40°C~85°C
Package: TO-94
Applications
Brushless DC fan motors
Brushless DC motors
CONFIDENTIATO-94
SDC
Figure 1. Package Type
November, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
1/9
www.sdc-semi.com

1 page




SDC280 pdf
Smart Two-Phase DC Fan
Datasheet
SDC280
Electrical Characteristics (Ta=25°C, VDD=12V, unless otherwise specified)
Parameter
Power supply
TOperating current
NOutput clamp voltage
Output saturation voltage
EOutput leakage current
MLock on time1
Lock off time1
ULock on time2
CLock off time2
Symbol
V DD
I DD
V OUT-CLAMP
V SAT
I LEAK
t ON1
t OFF1
t ON2
t OFF2
Conditions
-
VDD=24V, output open
-
VDD=12V, IO=300mA
VDD=VDO/DOB= 12V
VDD>7V
VDD>7V
VDD<5V
VDD<5V
OTable 4. Electrical Characteristics
DMagnetic Characteristics (Ta=25°C, VDD=12V, unless otherwise specified)
LParameter
Symbol
Min
Typ
Operating point
B OP
10
25
IARelease point
B RP
-40
25
THysteresis BHys 40
50
NTable 5. Magnetic Characteristics
EVDO
Min Typ
3.5 12
- 4.2
50 57
- 0.35
- 0.1
- 300
- 1.8
- 600
- 3.6
Max
40
-10
60
VDOB
IDOff-state
Off-state
Max Unit
24 V
6.0 mA
-V
0.5 V
10 uA
- ms
-S
- ms
-S
Unit
GS
GS
GS
NFBH BH
CO On-state
On-state
SDCN
BRP 0 BOP
SN
BRP 0 BOP
Figure 4. Magnetic Characteristics
S
November, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
5/9
www.sdc-semi.com

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