Home Appliance Electronic Control Devices - SmartData
Home Appliance Electronic Control Devices - SmartData
Home Appliance Electronic Control Devices - SmartData
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16<br />
LB11988/V/H/HR<br />
LB11683V<br />
Three-phase brushless motor driver IC Three-phase brushless sensorless motor driver IC<br />
Applications<br />
Motor drive for DC fan motors used in refrigerators (internal and external fans) and similar<br />
products<br />
Functions and Features<br />
Three-phase full-wave current linear drive<br />
Current limiter circuit<br />
Output stage high and low side<br />
oversaturation prevention circuit<br />
Forward/reverse direction setting circuit<br />
Three built-in output high side diodes<br />
FG output circuit<br />
Thermal shutdown circuit<br />
UIN+<br />
VCC<br />
UIN-<br />
VIN+<br />
VIN-<br />
WIN+<br />
WIN-<br />
FR<br />
VCC<br />
+<br />
-<br />
+<br />
-<br />
+<br />
-<br />
Forward/reverse<br />
switching<br />
Bandgap 1.2V<br />
Reference<br />
voltage<br />
Hall input synthesis circuit<br />
(linear matrix)<br />
Synthesized output logarithmic<br />
compression block<br />
FC<br />
Differential<br />
distribution<br />
Current limiter<br />
TSD<br />
0.1µF<br />
Reverse logarithmic transformation<br />
& differential distribution<br />
Feedback amplifier<br />
+<br />
+<br />
+<br />
-<br />
LIMREF -<br />
GND<br />
Package:<br />
LB11988: DIP18<br />
LB11988V: SSOP24J<br />
LB11988H: HSOP28H<br />
LB11988HR: HSOP28HC<br />
-<br />
+<br />
UIN+<br />
UIN-<br />
+<br />
-<br />
High side saturation<br />
prevention control<br />
Drive distribution circuit<br />
and low side saturation<br />
prevention circuit<br />
+<br />
Schmitt amplifier<br />
+<br />
-<br />
FG<br />
amplifier<br />
13.6k 30k<br />
-<br />
+<br />
UOUT<br />
VOUT<br />
WOUT<br />
VCC<br />
5K<br />
FGOUT<br />
VS<br />
RF<br />
0.1µF<br />
x3<br />
0.5<br />
Applications<br />
Motor drive for DC fan motors used in refrigerators (internal and external fans) and similar<br />
products<br />
Functions and Features<br />
Three-phase sensorless drive<br />
Three-phase full-wave current linear drive<br />
Current limiter circuit<br />
Output stage high side saturation<br />
prevention circuit<br />
Forward/reverse direction setting circuit<br />
Three built-in output high side diodes<br />
Coil back EMF based FG output<br />
0.1µF<br />
BFGO<br />
C1<br />
C2<br />
PCOUT<br />
VCOIN<br />
CX<br />
FC<br />
Thermal shutdown<br />
circuit<br />
Startup<br />
control circuit<br />
PLL VCO<br />
200<br />
200<br />
+<br />
-<br />
Mask circuit<br />
Timing<br />
control circuit<br />
Rotor position<br />
detection circuit<br />
Divide-by-8<br />
circuit<br />
Beat lock<br />
prevention circuit<br />
+<br />
-<br />
Soft switching<br />
drive circuit<br />
200<br />
Output drive circuit<br />
Thermal shutdown circuit<br />
Beat lock prevention circuit<br />
Motor constrained protection circuit<br />
Package:<br />
LB11683V: SSOP24J<br />
High side saturation<br />
prevention control<br />
Lock protection circuit<br />
VCC<br />
MCON<br />
UOUT<br />
VOUT<br />
WOUT<br />
Motor drivers<br />
RF 0.5<br />
GND<br />
RD<br />
CT<br />
17
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