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參數(shù)資料
| 型號(hào)： | LT1185CT |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| 中文描述： | 2.5 V-25 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, PSFM5 |
| 封裝： | PLASTIC, TO-220, 5 PIN |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 211K |
| 代理商： | LT1185CT |
13
LT1185
TYPICAL APPLICATIU
Time Delayed Start-Up
Low Input Voltage Monitor Tracks Dropout Characteristics
R6**
1k
+
–
4k
R1
2.37k
R2
2.6k
R7
27k
C1
2.2
μ
F
TANT
V
OUT
–
+
LT1006
V
–
OPTIONAL HYSTERSIS
≈
2M
V
+
3
2
4
7
“LOW” FOR LOW INPUT
OUTPUT SWINGS FROM V
IN+
TO V
IN–
R3
360k
R4**
1k
R5*
0.01
C2
2.2
μ
F
TANT
REF
GND
FB
V
OUT
LT1185
V
IN
+
–
V
IN
*3" #26 WIRE
**R4 DETERMINES TRIP POINT AT I
OUT
= 0
R6 DETERMINES INCREASE OF TRIP POINT AS I
OUT
INCREASES
TRIP POINT FOR V
IN
= V
OUT
FOR VALUES SHOWN, TRIP POINT FOR V
IN
IS:
V
OUT
+ 0.37V AT I
OUT
= 0 AND V
OUT
= 1.18V AT I
OUT
= 3A
DO NOT SUBSTITUTE. OP AMP MUST HAVE COMMON MODE
RANGE EQUAL TO NEGATIVE SUPPLY
1 +R3 R6
+ I
OUT
R5 R7
R6
LT1185 TA05
+
+
+
–
REF
GND
FB
V
OUT
LT1185
V
IN
R
LIM
***
D1
D2
R3**
15k
C3*
D3
C2
2.2
μ
F
V
IN
R2
R1
2.37k
C1
2.2
μ
F
TANT
+
–
V
OUT
LT1185 TA06
ALL DIODES 1N4148
*SEE CHART FOR DELAY TIME VERSUS (C3)(R3//R
LIM
) PRODUCT
**FOR LONG DELAY TIMES, REPLACE D2 WITH 2N3906 TRANSISTOR AND USE R3 ONLY FOR
CALCULATING DELAY TIME. R3 CAN INCREASE TO 100k
***I
IS
≈
11k/R
, INSTEAD OF 15k, BECAUSE OF VOLTAGE DROP IN D1. TEMPERATURE
COEFFICIENT OF I
WILL BE
≈
0.11%/
°
C, SO ADEQUATE MARGIN MUST BE ALLOWED
FOR COLD OPERATION
D3 PROVIDES FAST RESET OF TIMING. INPUT MUST DROP TO A LOW VALUE TO RESET TIMING
Q1**
+
+
Delay Time
INPUT VOLTAGE (V)
0
T
1.5
2.0
2.5
15
25
LT1185 TA07
1.0
0.5
0
5
10
20
3.0
3.5
4.0
30
*t = (R3//R
LIM
)(C3) =
(
)
R3 R
LIM
R3 + R
LIM
(C3)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1185I | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185IT | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185M | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185MK | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1185CT#06 | 制造商:Linear Technology 功能描述: |
| LT1185CT#06PBF | 制造商:Linear Technology 功能描述:LDO Regulator Neg/Pos 2.5V to 25V-2.5V to -25V 3A 5-Pin(5+Tab) TO-220 制造商:Linear Technology 功能描述:LDO Regulator Neg/Pos -2.5V to -25V2.5V to 25V 3A 5-Pin(5+Tab) TO-220 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 3A TO220-5 |
| LT1185CT#30 | 制造商:Linear Technology 功能描述: |
| LT1185CT#30PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 3A TO220-5 |
| LT1185CT#33PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 3A TO220-5 |
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