N

TYPE(1)

NAME

STNRGPF12

NAME

STNRGPF02

PIN DESCRIPTION

26

AI

TRIANG REF

Negative input analog comparators 3 and 2. It receives

voltage triangular waveform

27

AI

OCP[0]

Input overcurrent protection

28

AI

OCP[1

Inductor overcurrent protection

29

PS

VDDA

Analog supply voltage

30

PS

VSSA

Analog ground

31

MI

VIN_L1

This pin is one of the two inputs for the RMS input voltage

measurements. A divider resistor is connected to line/

neutral input wire

32

MI

TEMP

TThis pin is used to performs a double function : 1)

monitoring the ambient board temperature. This

measurement is realized using the curve of STLM20

device that give an output voltage proportional to

temperature. 2) overtemperature protection: if the voltage

falls below a settable treshold the device enter in fault

mode and will stop the PFC.

33

MI

IOUT

This pin measures the PFC output current

34

MI

VOUT

This pin measures the PFC output voltage

35

MI

ICH[0]

This pin measure the rms current for channel CH[0]

36

MI

ICH[0]

This pin measure the rms current for channel CH[1]

37

RI

ICH[2]

RES[3]

Reserved. This pin must be pulled down by means a 10k

resistor

38

MI

VIN-L2

This pin is one of the two inputs for the RMS input voltage

measurements. A divider resistor is connected to line/

neutral input wire

1. In the following table the legend of pin type is shown.

Table 2. Legend of the pins

TYPE

Pin identification

OP

PWM driver

O

Digital output

I

Digital input

I/O

Digital bidirectional

PS

Power supply

AI

Analog input

MI

Measure input

4.3

Input/output specification

The STNRGPFx2 family includes three different I/O types:

•

Normal I/Os (O or I);

•

Fast I/O (OP);

•

High speed I/O (CLOCK)

The STNRGPFx2 I/Os are designed to withstand current injection. For a negative injection current of 4 mA, the

resulting leakage current in the adjacent input does not exceed 1 μA.

STNRGPF02, STNRGPF12

Input/output specification

DS12895 - Rev 2

page 21/43