MC33065-L 查看數據表（PDF） - ON Semiconductor

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MC33065-L

HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS

ON Semiconductor 

MC34065−H, L

VCC 16

Vin = 15V

Vref

15

2.5V

R

R

Internal

Bias

Reference

Regulator

+

+

−

VCC

+

UVLO

−

Sync

Input 1

20k

−

+

Vref

3.6V

UVLO

−

10

3

RT

CT

2

Voltage Feedback 1

4

Compensation

15

Oscillator

+

−

Error

Amp 1

1.0mA

2R

1.0V

Vref

Current Sense

Comparator 1

−

+

R

PWM

Latch 1

S

Q

R

Drive Output 1

Q1

10

7

Current Sense 1

6

RS

250μA

10

Drive Output 2

Q2

Enable

Input 14

PWM

Latch 2

10

10

1.0mA

Current Sense

S

Voltage Feedback 2

13

+

−

Error

Amp 2

2R

Comparator 2

−

+

1.0V

R

RQ

R

Current Sense 2

11

Compensation

2 12

RS

Gnd 8

Drive Gnd 9

+

−

=

Sink Only

Positive True Logic

Figure 15. Representative Block Diagram

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