Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

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80807 MS PC B8-9096 No.A0879-1/21

LB11691

Overview

The LB11691 are three-phase bipolar PWM drive pre-driver ICs that allow the output circuits to be implemented using

only n-channel FETs. These ICs can implement, at low cost, high-efficiency drive circuits in applications that use motors

that require high drive currents. These ICs include a built-in Hall sensor signal F/V conversion circuit and can provide a

voltage that is proportional to motor speed for use, for example, in speedometers for electric bicycles. These ICs also

support use in applications that holds the speed controlled at a constant rate as the load varies.

Features

• Three-phase bipolar PWM drive (high and low side n-channel FET drive)

• Maximum supply voltage : 45V

• Gate drive voltage : about 10V (high and low side n-channel FETs)

• Hall sensor signal F/V conversion circuit (one-shot multivibrator output)

• Synthesized three-phase Hall sensor signal output

• Built-in current limiter and undervoltage protection circuits

Specifications

Absolute Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage 1

VCC max

VCC pin

45

V

Supply voltage 2

VB max

VB pin

60

V

Output current 1-1

IO max1

UL, VL, and WL pins

50

mA

Output current 2-1

IO max2-1

UH, VH, and WH pins sink current

30

mA

Output current 2-2

IO max2-2

UH, VH, and WH pins source current

40

mA

RF pin application voltage

VRF max

4V

LVS pin application voltage

VLVS max

60

V

Continued on next page.

Monolithic digital IC

Pre-Driver IC for Brushless

Motor Drive in Electric Bicycles

Ordering number : ENA0879