MC33033P 데이터 시트보기 (PDF) - Motorola => Freescale

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MC33033P

Brushless DC Motor Controller

Motorola => Freescale 

MC33033

Figure 18. Representative Block Diagram

SA 4

20 k

Sensor Inputs SB 5

20 k

SC 6

20 k

Foward/Reverse

3

40 k

Rotor

Position

Decoder

18

40 k

60°/120° Select

Output Enable

19

VCC 14

Reference Output

7

40 k

Reference

Regulator

Undervoltage

Lockout

8.9 V

Noninv. Input 9 Error Amp

Faster

10

RT

11

PWM

Error Amp Out

PWM Input

8

CT

Oscillator

Sink Only

=

Positive True

Logic With

Hysteresis

4.5 V

Thermal

Shutdown

Latch

R

Q

S

Latch

S

Q

R

13 Gnd

VM

2

AT

1

BT

Top

Drive

Outputs

20

CT

17 AB

16

Bottom

BB Drive

Outputs

15 CB

ILimit

100 mV

12 Current Sense

Input

10

MOTOROLA ANALOG IC DEVICE DATA

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