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the performance, characteristics, and functions of the described products in the independent state, and are not
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customer
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s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
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sproductsor
equipment.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
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91907 MS PC B8-8741 No. A0954-1 /7
LB11683H
Overview
The LB11683H is a three-phase full-wave current-lin ear-drive motor driver IC. It adopts a sensorless control system
without the use of a Hall effect device. For qu ieter operation, the LB11683H f eatures a current soft switching circuit and
is optimal for driving the cooling fan motors used in refrigerators, etc.
Functions
• Current linear drive
• Built-in current limiter circuit
• Output stage oversaturation prevention circuit
• Coil counter-electromotive FG output
• Built-in thermal shutdown circuit
• Beat lock prevention circuit
• Lock protection circuit
• Lock detection output
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Supply voltage VCC max 14.5 V
Output applied voltage VO max 14.5 V
Input applied voltage VI max -0.3 to VCC+0.3 V
Output current IO max 1.5 A
Pd max1 Independent IC 0.8 W Allowable power dissipation
Pd max2 Mounted on a board * 1.85 W
Operating temperature Topr -30 to +85 °C
Storage temperature Tstg -55 to +150 °C
* Specified board: 114.3mm ×76.1mm ×1.6mm, glass epoxy board.
Monolithic Digital IC
Three-Phase Sensorless Motor Driver
Orderin
numbe
: ENA0954