Pinout and pin description
STNRGPF01
Table 2. Pin description (continued)
Pin description
No. Type(1)
Name
This pin generates a PWM signal with the sinusoidal duty cycle. This PWM signal
19
20
21
OP
O
SIN_REF must be filtered in order to have the current sinusoidal reference that is synchronized
with input voltage mains.
It generates a CMOS/TTL signal that is low until the PFC output power is below a
threshold defined during device customization.
FAN
It generates a CMOS/TTL signal. This signal becomes high after a settable time
O
RELAY
defined during device customization. It is useful to perform the inrush current limiter
function.
22
23
O
I
PTX
PRX
Programming data transmit
Programming data receive
Positive input of the internal analog comparator 3. It receives the out of the analog PI
current.
24
25
26
AI
AI
AI
OUT_PI[3]
OUT_PI[2]
Positive input of the internal analog comparator 3. It receives the out of the analog PI
current.
TRIANG
REF
Negative input analog comparators 3 and 2. It receives the voltage triangular
waveform.
27
28
29
30
31
AI
AI
OCP[0]
OCP[1]
VDDA
VSSA
VIN
Input overcurrent protection
Inductor overcurrent protection
Analog supply voltage
PS
PS
MI
Analog ground
This pin measures the RMS input voltage.
This pin measures the ambient board temperature. This measurement is performed
using the STLM20 device, which gives an output voltage proportional to temperature.
32
MI
TEMP
33
34
35
36
37
38
MI
MI
RI
RI
RI
RI
IOUT
VOUT
RI[1]
RI[2]
RI[3]
RI[4]
This pin measures the PFC output current.
This pin measures the PFC output voltage.
Reserved. This pin must be pulled down by means a 10 k resistor.
Reserved. This pin must be pulled down by means a 10 k resistor.
Reserved. This pin must be pulled down by means a 10 k resistor.
Reserved. This pin must be pulled down by means a 10 k resistor.
1. In Table 3 a legend describing pin type is provided.
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STMICROELECTRONICS [ ST ]
