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Eutech Microelectronics

EUM6883MIR1 Datasheet Preview

EUM6883MIR1 Datasheet

800mA BTL Linear Fan Motor Driver

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EUM6883
800mA BTL Linear Fan Motor Driver
DESCRIPTION
EUM6883 is a single-phase full wave DC fan motor
driver. It is used as an interface between a HALL IC
and a single coil brushless motor. With its BTL linear
control and low saturation output stages, EUM6883
silently and efficiently drives a fan motor. The
functions built in EUM6883 are linear control drive
mode, fan tachometer, lock detection, automatic restart,
Hall Bias and thermal shutdown. When output voltage
changes from L to H (or H to L), linear control mode
gently drives the output stage. This makes EUM6883
suitable for the electronics equipment which required
low noise and high reliability. If the motor is stalled by
the external force, overdrive current may incur coil
overheat or burning. To prevent this, the lock detection
circuit shuts off the driver. The automatic restart circuit
resumes powering up the driver after a few seconds.
Rotation detection open drain output is pulled down
when a motor runs. FG is the Fan tachometer output,
and HB provides bias supply for a Hall sensor.
FEATURES
z Linear Control for Single-Phase Full Wave Drive
z Wide Input Range 1.8V~13.8V
z Low Saturation Output Voltage 0.5V @250mA
z FG Tachometer Output
z Lock Detection, Automatic Restart
- RD = L when Rotation; RD = H when Stop
z 1.5V Hall Bias
z Thermal Shutdown Protection
z Available in MSOP-10 Package
z RoHS Compliant and 100% Lead (Pb)-Free,
Halogen-Free
APPLICATIONS
z CPU Cooling Fan
z Car Audio Cooler
z Power Supply Cooling Fan
Block Diagram
DS6883 Ver1.0 Aug. 2009
Figure 1.
1




Eutech Microelectronics

EUM6883MIR1 Datasheet Preview

EUM6883MIR1 Datasheet

800mA BTL Linear Fan Motor Driver

No Preview Available !

Pin Configurations
Package Type
EUM6883Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Pin Configurations
MSOP-10
Pin Description
PIN
IN+
HB
IN-
CT
OUT1
GND
OUT2
VCC
FG
RD
MSOP-10
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
Hall signal positive input
Hall signal bias
Hall signal negative input
Lock protection time programmable output
Motor output 1
Ground pin
Motor output 2
Power supply
Rotation speed feedback open drain output
Rotation detection open drain output
DS6883 Ver1.0 Aug. 2009
2


Part Number EUM6883MIR1
Description 800mA BTL Linear Fan Motor Driver
Maker Eutech Microelectronics
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