lnbk20 STMicroelectronics, lnbk20 Datasheet - Page 6

• Manufacturer Part Number: lnbk20
• Description: Lnb Supply And Control Voltage Regulator Parallel Interface
• Manufacturer: STMicroelectronics

Pin configuration
Table 2.
6/25
5, 6, 15,
PIN N°
7, 13
16
10
11
12
14
18
19
20
1
2
3
4
8
9
Pin description for SO-20
SYMBOL
EXTM
OSEL
CEXT
LNBB
LNBA
GND
V
V
V
N.C.
ENT
LLC
OLF
EN
MI
CC1
CC2
SEL
Output Voltage Selection:
Line Length Compens.
22KHz Tone Enable
External Modulator
External Capacitor
Over Load Flag
Not Connected
13 or 18V (typ)
Supply Input 1
Supply Input 2
Port Selection
Master Input
Output Port
Output Port
Port Enable
(1V typ)
Ground
NAME
Logic control input: see truth table
Logic output (open collector). Normally in HIGH
IMPEDANCE, goes LOW when current or thermal
overload occurs
In stand-by mode, the voltage on MI is routed to LNBA pin.
Can be left open if bypass function is not needed
See truth tables for voltage and port selection
Circuit Ground. It is internally connected to the die frame
15V to 27V supply. It is automatically selected when
V
22V to 27V supply. It is automatically selected when
V
See truth table voltage and port selection. In stand-by
mode this port is powered by the MI pin via the internal
Bypass Switch
Logic control input: see truth table
Logic control input: see truth table
Logic control input: see truth table
Logic control input: see truth table
Timing Capacitor used by the Dynamic Overload
protection. Typical application is 4.7µF for a 1200ms cycle
External Modulation Input. Needs DC decoupling to the
AC source. if not used, can be left open.
OUT
OUT
= 13 or 14V
= 18 or 19V
FUNCTION
LNBK20