Ordering number : ENN6656A
Monolithic Digital IC
LB11981
Three-Phase Sensorless Motor Driver
Applications
Refrigerator fan motors
Package Dimensions
unit: mm 3222-HSOP28 (275 mil)
[LB11981]
28 15
1.
0 5.
6 0.
2 Ratings 30 Power supply for output stage 30 30 –0.
3 to VCC + 0.
3 1.
0 Independent IC 0.
5 –20 to +75 –55 to +150 0.
1 1.
8max 0.
5 7.
6 Unit V V V V A W °C °C
Features
• No Hall sensors required.
• No FG sensors required.
• Lock detection circuit (Can be set to operate in either automatic recovery or latching mode.
) • Thermal shutdown circuit • Current limiter circuit • Low-
voltage shutdown circuit • Forward/reverse switching • Supports both single- and dual-power supply circuits.
1
0.
8 ...