stlc3075 STMicroelectronics, stlc3075 Datasheet - Page 16

• Manufacturer Part Number: stlc3075
• Description: Integrated Pots Interface For Home Access Gateway And Wll
• Manufacturer: STMicroelectronics

Functional description
Table 8.
16/36
R
CRD
CV
CSVR
CREV
CVCC
Name
RREF
RLIM
RDD
RRX
CAC
CVB
RTH
CSF
RSF
SENSE
RD
RP
CV
CZ
Q1
D1
T1
POS
(3)
Sense filter resistor
Rx input bias resistor
Bias setting current
Negative battery filter
Ring trip threshold setting
resistor
AC/DC split capacitance
Line protection resistor
Current limiting programming
Off-hook threshold
programming (Active mode)
Reverse polarity transition
time programming
Pull up resistors
Internally supply filter
capacitor
Positive supply filter capacitor
with low impedance for switch
mode power supply
Battery supply filter capacitor
with low impedance for switch
mode power supply
High frequency noise filter
High frequency noise filter
Flyback compensation
capacitor
Sense filter capacitor
DC/DC converter peak
current limiting
DC/DC converter switch N
channel MOS transistor
DC/DC converter series
diode
DC/DC converter transformer
External components for flyback configuration
Function
RREF = 1.3/Ibias; Ibias = 50 A
CSVR = 1/(2
fp = 50Hz
RD = 100/I
2K < RD < 5K
Rp > 30
RLIM = 1300/Ilim
32.5k < RLIM < 65k
RTH = 290/I
27k < RTH < 52k
CREV = ((1/3750)· T/ V
R
RDS(ON) 0.05 ,
VDSS = 30V
VDG=30V, ID = 6.5A
Low threshold drive
V
Flyback transformer 4W, turns ratio
1:16 for V
8.5V
r
SENSE
> 350V, t
= 375mV/I
POS
RTH
RR
TH
Formula
range from 4.5V to
80ns
fp
PK
1.8M )
TR
)
22 F 20% 15V @ RD = 4.12k
SMBYTW01-400 or equivalent
4.12k 1% @ IRTH = 24mA
52.3k 1% @ Ilim = 25mA
22nF 10% 10V @ 12V/ms
STN4NF03L or equivalent
Tyco COEV MAGNETICS
or Coilcraft FA2469-AL
32.4k 1% @ I
220m @ I
100 F 20% 100V
470nF 20% 100V
1.5nF 10% 100V
100nF 20% 10V
100nF 10% 15V
MGPWG-00007
120pF, 20%
2.2nF, 20%
Typ. value
100k 5%
26k 1%
100 F
50 1%
100k
1k
PK
(1)
TH
= 1.7A
= 9mA
STLC3075
(2)
(4)