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Home Appliance Electronic Control Devices - SmartData

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20<br />

LB11695M<br />

LB11690/H<br />

Three-phase direct PWM drive brushless motor driver Three-phase direct PWM drive brushless motor driver<br />

Applications Applications<br />

Motor drive for the larger motors used in water heaters, air conditioner, and other appliances.<br />

Motor drive circuits with the desired output power (voltage and current) are implemented using<br />

external discrete transistors for the output stage.<br />

Functions and Features Functions and Features<br />

Three-phase bipolar drive<br />

Direct PWM drive<br />

Forward/reverse direction setting circuit<br />

Built-in protection circuits for reverse<br />

direction operation<br />

Full complement of built-in protection circuits,<br />

including current limiter circuit, undervoltage<br />

protection circuit, motor constraint protection<br />

circuit, and thermal protection circuit<br />

VREG<br />

HP<br />

TOC<br />

VREG<br />

VCTL<br />

-<br />

+<br />

PWM PWM<br />

OSC<br />

VREF<br />

S/S<br />

PWM<br />

IN<br />

S/S PWMIN CSD F/R N1 N2 IN1+ IN1- IN2+ IN2- IN3+ IN3- GND<br />

pulsec input<br />

SD<br />

OSC<br />

F/R<br />

N1<br />

LVSD<br />

LOGIC<br />

N2<br />

VCC<br />

TSD<br />

MD<br />

LOGIC<br />

COMP<br />

HALL<br />

LOGIC<br />

HALL<br />

HYS AMP<br />

Motor operation can be controlled by either<br />

a command voltage or the duty of the input<br />

PWM signal.<br />

Thermal shutdown circuit<br />

Beat lock prevention circuit<br />

Package: MFP30SD<br />

V15<br />

12VREG<br />

VREG<br />

PRI<br />

DRIVER<br />

CURR<br />

LIM<br />

12REG<br />

LVS<br />

VREG<br />

VCC<br />

UL<br />

UH<br />

VL<br />

VH<br />

WL<br />

WH<br />

RF<br />

+<br />

12V<br />

V<br />

M<br />

+<br />

Motor drive for a wide range of larger motors, such as those used in electric bicycles, water<br />

heaters, and air conditioners. Motor drive circuits with the desired output power (voltage and<br />

current) are implemented using external discrete transistors for the output stage.<br />

Three-phase bipolar drive<br />

Direct PWM drive<br />

Built-in voltage step-up circuit that can<br />

drive an external n-channel MOSFET<br />

Supports input from a Hall sensor IC<br />

Current limiter reference voltage: 0.1 V<br />

typical (with sensing)<br />

Three-phase synthesized FG output<br />

V5<br />

TOC<br />

El-<br />

El+<br />

PWM<br />

-<br />

+<br />

PWM<br />

OSC<br />

+<br />

FV RC HP<br />

ONE-SHOT<br />

MULTI<br />

-<br />

+<br />

RES<br />

V5<br />

HP<br />

LVSD<br />

LOGIC<br />

CP1 CP2 V5<br />

CHARGE<br />

PUMP<br />

LOGIC<br />

HALL<br />

LOGIC<br />

HALL HYS COMP<br />

V5 RES GND V5orV12 IN1 IN2 IN3<br />

5VREG 12VREG<br />

PRI<br />

DRIVER<br />

V12<br />

VCC<br />

VB<br />

LVS<br />

CURR<br />

LIM RF<br />

RFGND<br />

UH<br />

UOUT<br />

UL<br />

VH<br />

VOUT<br />

VL<br />

WH<br />

WOUT<br />

WL<br />

Motor drivers<br />

F/V converted FG signal output (for speed<br />

control)<br />

Built-in integrating amplifier for use as an<br />

input buffer or speed control<br />

Package:<br />

LB11690: DIP30SD<br />

LB11690H: HSOP36<br />

36V<br />

+<br />

21

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