Home Appliance Electronic Control Devices - SmartData
Home Appliance Electronic Control Devices - SmartData
Home Appliance Electronic Control Devices - SmartData
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26<br />
LB11862M<br />
Single-phase full-wave drive brushless motor driver<br />
Applications<br />
The miniature package makes this device optimal for smaller fans (particularly, CPU cooling<br />
fans). It also can provide highly efficient motor drive with minimal switching noise.<br />
Functions and Features<br />
Single-phase full-wave drive<br />
Supports both 5 V and 12 V power supplies<br />
The built-in regeneration circuit makes it<br />
possible to use a reverse connection<br />
prevention diode.<br />
Built-in Hall amplifier with hysteresis<br />
characteristics (supports cores without a<br />
commutator)<br />
CT<br />
0.47~1µF<br />
HALL<br />
VCC<br />
IN+<br />
IN-<br />
HB<br />
Discharge<br />
pulse<br />
Amplifier with hysteresis<br />
characteristics<br />
Thermal protection<br />
circuit<br />
<strong>Control</strong><br />
circuit<br />
Charge/discharge<br />
circuit<br />
Delay circuit<br />
Delay circuit<br />
START/STOP<br />
ST<br />
Motor constraint protection circuit (with<br />
automatic recovery)<br />
Motor constraint state output pin (latched<br />
output: low when turning, high when stopped)<br />
Low current drain standby mode using the<br />
Hall bias and start/stop pins<br />
Thermal shutdown circuit<br />
Package: MFP10S<br />
GND<br />
RD<br />
OUT2<br />
M<br />
OUT1<br />
LB11965M<br />
Single-phase full-wave direct PWM drive brushless motor driver<br />
Applications<br />
This device is a single-phase bipolar drive motor driver that can easily implement direct PWM<br />
drive for high motor drive efficiency. This device is optimal for driving all types of fan motors in<br />
applications from refrigerators to servers.<br />
Functions and Features<br />
Single-phase full-wave drive (with built-in<br />
18 V 1 A output transistor)<br />
Built-in external input control variable<br />
speed function (external excitation high<br />
side transistor direct PWM control)<br />
Supports both 12 V single-voltage power<br />
supply (recommended voltage range: VCC =<br />
VM = 9 to 17 V) and dual power supply system<br />
specifications (VCC = 5 V, VM = 8 to 17 V)<br />
Built-in 5 V regulator circuit (for the Hall<br />
sensor bias)<br />
0.47~1µF<br />
HALL<br />
CT<br />
VM<br />
VCC<br />
5VREG<br />
IN+<br />
IN-<br />
5VREG<br />
Discharge<br />
pulse<br />
Amplifier with hysteresis<br />
characteristics<br />
Thermal protection<br />
circuit<br />
<strong>Control</strong><br />
circuit<br />
Charge/discharge<br />
circuit<br />
Delay circuit<br />
Delay circuit<br />
Oscillator circuit<br />
S-GND VCONT<br />
CPWM<br />
P-GND<br />
Motor drivers<br />
Low current drain when stopped (when the<br />
VCONT pin is low)<br />
Motor constraint protection circuit (with<br />
automatic recovery)<br />
Motor constraint state output pin (latched<br />
output: low when turning, high when stopped)<br />
Built-in regeneration diode reduces the<br />
number of external components<br />
Thermal shutdown circuit<br />
Package: MFP14S<br />
FG<br />
OUT2<br />
M<br />
OUT1<br />
27
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