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參數(shù)資料
| 型號(hào)： | LNBK20D2 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | SO-20 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 467K |
| 代理商： | LNBK20D2 |
LNBK20D2
3/14
TABLE A: PIN CONFIGURATIONS
NOTE: the limited pin availability of the PowerSO-10 package leads to drop some functions.
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
PIN N°
SYMBOL
NAME
FUNCTION
1
LLC
Line Length Compens.
(1V typ)
Logic control input: see truth table
2
OLF
Over Load Flag
Logic output (open collector). Normally in HIGH
IMPEDANCE, goes LOW when current or thermal overload
occurs
3
MI
Master Input
In stand-by mode, the voltage on MI is routed to LNBA pin.
Can be left open if bypass function is not needed
4
LNBB
Output Port
See truth tables for voltage and port selection
5, 6, 15,
16
GND
Ground
Circuit Ground. It is internally connected to the die frame
7, 13
N.C.
Not Connected
8VCC1
Supply Input 1
15V to 27V supply. It is automatically selected when
VOUT =13or14V
9VCC2
Supply Input 2
22V to 27V supply. It is automatically selected when
VOUT =18or19V
10
LNBA
Output Port
See truth table voltage and port selection. In stand-by mode
this port is powered by the MI pin via the internal Bypass
Switch
11
VSEL
Output Voltage Selection:
13 or 18V (typ)
Logic control input: see truth table
12
EN
Port Enable
Logic control input: see truth table
14
OSEL
Port Selection
Logic control input: see truth table
18
ENT
22KHz Tone Enable
Logic control input: see truth table
19
CEXT
External Capacitor
Timing Capacitor used by the Dynamic Overload protection.
Typical application is 4.7
F for a 1200ms cycle
20
EXTM
External Modulator
External Modulation Input. Needs DC decoupling to the AC
source. if not used, can be left open.
Symbol
Parameter
Value
Unit
VI
DC Input Voltage (VCC1,VCC2, MI)
28
V
IO
Output Current (LNBA, LNBB)
Internally Limited
mA
VI
Logic Input Voltage (ENT, EN OSEL, VSEL, LLC)
-0.5 to 7
V
ISW
Bypass Switch Current
900
mA
PD
Power Dissipation at Tcase < 85°C
3W
Tstg
Storage Temperature Range
-40 to +150
°C
Top
Operating Junction Temperature Range
-40 to +125
°C
Symbol
Parameter
Value
Unit
Rthj-case
Thermal Resistance Junction-case
15
°C/W
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