NCL30080ASNT1G Просмотр технического описания (PDF) - ON Semiconductor

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NCL30080ASNT1G

Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

ON Semiconductor 

NCL30080

1

6

2

5

3

4

.

.

Aux

.

Figure 1. Typical Application Schematic for NCL30080

Table 1. PIN FUNCTION DESCRIPTION

Pin No Pin Name

Function

1

ZCD

Zero Crossing Detection

2

GND

−

3

CS

Current sense

4

DRV

Driver output

5

VCC

Supplies the controller

6

VIN

Input voltage sensing

Brown−Out

Pin Description

Connected to the auxiliary winding; this pin detects the core reset event.

The controller ground

This pin monitors the primary peak current

The current capability of the totem pole gate drive (+0.3/−0.5 A) makes it suit-

able to effectively drive a broad range of power MOSFETs.

This pin is connected to an external auxiliary voltage.

This pin observes the HV rail and is used in valley selection. This pin also

monitors and protects for low mains conditions.

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2

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