SG1842L 查看數據表（PDF） - Microsemi Corporation

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SG1842L

Current Mode PWM Controller

Microsemi Corporation 

Current Mode PWM Controller

Block Diagram

VCC*

GROUND**

34V

16V (1842)

8.4V (1843)

6V (1842)

0.8V (1843)

S/R

5V

REF

INTERNAL BIAS

RT/CT

OSCILLATOR

VREF

GOOD LOGIC

VFB

COMP

CURRENT SENSE

ERROR AMP

+

2R

_

R

1V

S

R PWM

LATCH

CURRENT SENSE

COMPARATOR

* - VCC and VC are internally connected for 8-pin packages.

** - POWER GROUND and GROUND are internally connected for 8-pin packages.

Figure 2 · Block Diagram

VREF

5.0V

50mA

VC*

OUTPUT

POWER

GROUND**

8

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