SDC283 [SDC]
Two-Phase DC Fan Driver;
| 型号： | SDC283 |
| 厂家： | 
Shaoxing Devechip Microelectronics Co., Ltd |
| 描述： | Two-Phase DC Fan Driver |
| 文件： | 总9页 (文件大小：233K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Datasheet
General Description
Features
The SDC283 is a one-chip solution for driving two-coil
brushless DC cooling fans. Based on the advanced CMOS
process, the IC contains a Hall-effect sensor, dynamic
offset correction and low side output drivers.
Wide operating voltage range: 3.5V~16V
150mA(AVG) output sink current
Building-in protection diode
Output thermal shutdown protection
Package: TO-94
In the case of power supply reverse connecting, the
internal protection diode can protect IC but not protect
coil, a protection diode can be added if necessary
Applications
Brushless DC motor
Brushless DC fan
Revolution cg
Speed urement
TO-94
Figure 1. Package Type
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Datasheet
Pin Configuration
Package: TO-94
1.VDD
2.DO
3.DOB
4.GND
1 2 3 4
Figure2. Pin Configuration
Pin Name
Pin Number
Function
Supply voltage pin
Output pin
1
2
3
4
VDD
DO
DOB
GND
Output pin
Ground pin
Table 1. Pin Description
Functional Block Diagram
VDD
Re
OTP
Voltage
Clamp
DO
OSC
Logic&
Control
Circuit
Lock&Restart
Voltage
Clamp
DOB
AMP
GND
Figure 3. Functional Block Diagram
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Datasheet
Ordering Information
-
X
SDC283
X
E1: Pb-free
G1: Halogen-free
Circuit Type
Package
TO-94: Z4
Part Number
Marking ID
Temperature
Packing
Type
Package
Range
Pb-free
Halogen-free
Pb-free
Halogen-free
277AG
TO-94
-20°C~85°C
SDC283Z4-E1
SDC283Z4-G1
277A
Bulk
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Datasheet
Absolute Maximum Ratings (Note: Stresses greater than those listed under absolute maximum ratings may cause
permanent damage to the device.)
Parameter
Symbol
Value
20
Units
V
Supply Voltage
VDD
B
Magnetic flux density
unlimited
180
GS
Continuous
Peak
Output current
IOUT
mA
300
Storage temperature range
Package power dissipation
TS
PD
-65~150
550
°C
mW
V
ESD, HBM model per Mil-Std-883, Method 3015
ESD, MM model per JEDEC EIA/JESD22-A115
Latch-up test per JEDEC 78
HBM
MM
-
4000
V
200
mA
°C
Maximum junction temperature
TJ
170
Table 2. Absolute Maximum Ratings
Recommended Operating Conditions
Parameter
Symbol
Min
3.5
-20
-
Max
Unit
V
Power supply
VDD
16
85
Operation temperature
Ta
°C
Operation Current (continuous)
IOUT
150
mA
Tabecommended Operating Conditions
Electrical Characteristics (Ta=25°C, VDD=12V, unless otherwise specified)
Parameter
Symbol
VDD
VZ
Conditions
Min
Typ
-
Max
Unit
V
Supply voltage
-
3.5
16
-
Output zener breakdo
Output saturation voltage
Output leakage current
Supply current
-
-
-
-
-
-
-
-
-
-
33
V
VSAT
ICEX
ICC
IO=100mA
0.4
0.1
2
-
V
-
VDD =20V, output open
RL=820Ω, CL=20pF
RL=820Ω, CL=20pF
RL=820Ω, CL=20pF
-
10
-
uA
mA
us
us
us
°C
Outrise time
tr
0.05
0.05
0.1
165
30
0.1
0.1
0.2
-
Outalling time
tf
Switch time differential
Over temperature shutdown threshold
Over temperature shutdown hysteresis
Δt
Ta
Thys
-
-
°C
Table 4. Electrical Characteristics
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Datasheet
Magnetic Characteristics (Ta=25°C, VDD=12V, unless otherwise specified)
VDO
VDOB
Off-state
BH
Off-state
BH
On-state
On-state
N
BRP
BOP
BRP
BOP
0
S
0
N
S
Figure 4. Magnetic Characteristi
Symbol
Bop
Parameter
Min
10
Typ
20
Max
40
Unit
Gauss
Gauss
Gauss
Magnetic operate point
Magnetic release point
Magnetic hysteresis
Brp
-40
30
-20
40
-10
50
Bhys
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Datasheet
Typical Performance Characteristics
VDO
VDOB
BOP
S
N
Marking
BRP
BOP
BRP
BOP
BHYS
Figure 5. Magnetic Characteristics
60
40
20
0
BOP
BRP
-20
-4
-60
2
4
6
8
10 12 14 16 18 20
Supply Voltage(V)
Figure 6. Typical Magnetic Switch Point vs. Supply Voltage
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Datasheet
Typical Application
SDC283
Coil
VDD
DO
DOB GND
VDD
Figure 7. Typical Application
Package Dimension
TO-94
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Datasheet
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
1.800
0.900
0.550
0.510
5.350
4.850
3.750
Min
Max
0.071
0.035
0.022
0.020
0.214
0.194
0.148
A
A1
b1
C
1.400
0.700
0.380
0.360
5.050
4.550
3.450
0.055
0.028
0.015
0.014
0.202
0.128
0.136
D
D1
E
e
1.270 TYP.
10°T YP.
0.050 TYP.
10°T YP.
L
14.300
14.700
2
0.588
θ
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Datasheet
Shaoxing Devechip Microelectronics Co., Ltd.
http://www.sdc-semi.com/
IMPORTANT NOTICE
Information in this document is provided solely in connection with Shaoxing Devechip Microelectronics Co., Ltd. (abbr. SDC) products.
SDC reserves the right to make changes, corrections, modifications or improvements, to this document, and the products and services
described herein at anytime, wthout notice. SDC does not assume any responsibility for use of any its products for any particular
purpose, nor does SDC asany liability arising out of the application or use of any its products or circuits. SDC does not convey
any license under its patents or other rights nor the rights of others.
© 2015 Devechip Microelectronics - All rights reserved
Contact us:
Heads of Shaoxing
Addressn Mu Road, No13,
Shaoxing city, Zhejiang province, China
Zip code: 312000
Shenzhen Branch
Address: 22A, Shangbu building, Nan Yuan Road, No.68,
Futian District, Shenzhen city, Guangdong province, China
Zip code: 518031
Tel: (86) 0575-8861 6750
Tel: (86) 0755-8366 1155
Fax: (86) 0575-8862 2882
Fax: (86) 0755-8301 8528
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