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PDF SDC11558 Data sheet ( Hoja de datos )
| Número de pieza | SDC11558 | |
| Descripción | Single-Phase Full-Wave Motor Driver | |
| Fabricantes | SDC | |
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Single-Phase Full-Wave Motor Driver
Datasheet
SDC11558
General Description
The SDC11558 is a single phase full wave motor driver for
DC fan motors, and can apply to three type speed control
methods. The output signals of this IC are the
amplifications of hall input signals. It is suitable for both
game machine and CPU cooler that need silent fans. The
device is built-in lock protection. When the fan is locked,
the device will enter the lockup protection mode. It is also
with thermal shutdown function. In normal operation, the
supply current is less than 5mA. The SDC11558 is available
in MSOP-10 package.
Pin Configuration
Features
Silent driver
Three speed control methods
Built-in lock protection and auto restart function
Low standby current (PWM=0), supply current less
than 200uA (Type C only)
Adjustable fan speed slope (Type B only)
FG output
Include hall bias circuit
Built-in thermal protection circuit(RoHS compliant)
Low duty start up
Applications
Motor drivers for silent fan motors
OUT2 1
10 GND
VCC 2
IN+ 3
9 OUT1
8 PWM
MSOP-10
Pin Number
1
2
3
4
5
6
7
8
9
10
HB 4
IN- 5
7 FG
6 SET
Figure 1. Pin Configuration
Pin Name
OUT2
VCC
IN+
HB
IN-
SET
FG
PWM
OUT1
GND
Function
Motor output terminal 2
Power supply terminal
Hall input terminal+
Hall bias terminal
Hall input terminal-
Speed slope setting terminal.
FG signal output terminal
PWM signal input terminal
Motor output terminal 1
GND terminal
Table 1. Pin Description
January, 2013 Rev. 1.0
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
1/10
www.sdc-semi.com
1 page  
Single-Phase Full-Wave Motor Driver
Typical Application
Type A: VCC speed control
Coil
Datasheet
SDC11558
1 OUT2
VIN
D1
Option
2 VCC
C1 D2
3 IN+
GND 10
OUT1 9
PWM 8 Floating
4 HB
Hall
5 IN-
FG 7
SET 6 Floating
Figure 3. Typical Application 1
Type B: VCC speed control with slope setting
Coil
Pull High
Voltage
1 OUT2
VIN
D1
Option
2 VCC
C1 D2
3 IN+
4 HB
Hall
5 IN-
GND 10
OUT1 9
PWM 8 Floating
FG 7
SET 6
10kΩ
Pull High
Voltage
HB
Figure 4. Typical Application 2
January, 2013 Rev. 1.0
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
5/10
www.sdc-semi.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SDC11558.PDF ] | |
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