On Semiconductor NCL30081 Evaluation Board NCL30081LEDGEVB NCL30081LEDGEVB データシート
製品コード
NCL30081LEDGEVB
NCL30081
http://onsemi.com
2
Figure 1. Typical Application Schematic for NCL30081
Aux
1
2
3
4
5
6
.
.
.
Table 1. PIN FUNCTION DESCRIPTION
Pin No
Pin Name
Function
Pin Description
1
ZCD
Zero Crossing Detection
Connected to the auxiliary winding, this pin detects the core reset event.
2
GND
−
The controller ground
3
CS
Current sense
This pin monitors the primary peak current
4
DRV
Driver output
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.
5
VCC
Supplies the controller
This pin is connected to an external auxiliary voltage.
6
VIN
Input voltage sensing
Brown−Out
This pin observes the HV rail and is used in valley selection. This pin also
monitors and protects for low mains conditions.