- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368708 > 1374I (Linear Technology Corporation) RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS PDF資料下載
參數(shù)資料
| 型號： | 1374I |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 309K |
| 代理商： | 1374I |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
8
LT1374
1374fb
–
+
–
+
–
+
–
+
Σ
INPUT
2.9V BIAS
REGULATOR
500kHz
OSCILLATOR
FREQUENCY
SHIFT CIRCUIT
V
SW
FB
V
C
LOCKOUT
COMPARATOR
GND
1374 BD
SLOPE COMP
0.01
BIAS*
INTERNAL
V
CC
CURRENT
SENSE
AMPLIFIER
VOLTAGE GAIN = 20
SYNC
SHDN
SHUTDOWN
COMPARATOR
CURRENT
COMPARATOR
ERROR
AMPLIFIER
g
m
= 2000
μ
Mho
FOLDBACK
CURRENT
LIMIT
CLAMP
BOOST
R
FLIP-FLOP
DRIVER
CIRCUITRY
S
R
0.9V
Q2
Q1
POWER
SWITCH
2.42V
2.38V
*BIAS PIN IS AVAILABLE ONLY ON THE S0-8 AND FE16 PACKAGES
–
+
0.4V
3.5
μ
A
BLOCK DIAGRA
APPLICATIOU
FEEDBACK PIN FUNCTIONS
The feedback (FB) pin on the LT1374 is used to set output
voltage and provide several overload protection features.
The first part of this section deals with selecting resistors
to set output voltage and the remaining part talks about
foldback frequency and current limiting created by the FB
pin. Please read both parts before committing to a final
design. The fixed 5V LT1374-5 has internal divider resis-
tors and the FB pin is renamed SENSE, connected directly
to the output.
The suggested value for the output divider resistor (see
Figure 2) from FB to ground (R2) is 5k or less, and a
formula for R1 is shown below. The output voltage error
caused by ignoring the input bias current on the FB pin is
less than 0.25% with R2 = 5k. A table of standard 1%
values is shown in Table 1 for common output voltages.
W
U
U
Please read the following if divider resistors are increased
above the suggested values.
(
R
R V
OUT
2
1
2 42
2 42
=
)
Table 1
OUTPUT
VOLTAGE
(V)
R1
% ERROR AT OUTPUT
DUE TO DISCREET 1%
RESISTOR STEPS
+0.23
+0.08
+0.39
–0.5
–0.04
+0.83
–0.62
+0.52
R2
(k
)
4.99
4.99
4.99
4.99
4.99
4.99
4.99
4.99
(NEAREST 1%)
(k
)
1.21
1.82
5.36
7.32
11.5
15.8
19.6
26.1
3
3.3
5
6
8
10
12
15
Figure 1. Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 1374I5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 1374SN | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 1393203-4 | Mid–Range PC Board Relays |
| 1393203-5 | Mid–Range PC Board Relays |
| 1393203-8 | Mid–Range PC Board Relays |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 1374I5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4.5A, 500kHz Step-Down Switching Regulator |
| 1374SN | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4.5A, 500kHz Step-Down Switching Regulator |
| 1375 | 制造商:Abbatron/HH Smith 功能描述: 制造商:H H SMITH 功能描述: 制造商:Heyco Products Inc 功能描述:SR 15-1 WHITE 制造商:NTE Electronics 功能描述: 制造商:Pass & Seymour/Legrand 功能描述:PILOT LITE 制造商:Paladin Tools 功能描述: |
| 13750010 | 制造商:Delphi Corporation 功能描述:23 WAY CONNECTOR MALE |
| 1375005-1 | 功能描述:以太網(wǎng)和電信連接器 KIT FURN.OUTLET SMALLBASE LT.A RoHS:否 制造商:Pulse 產(chǎn)品:Modular Jacks 性能類別: USOC 代碼:RJ45 位置/觸點(diǎn)數(shù)量: 安裝風(fēng)格:Through Hole 端口數(shù)量:1 x 1 型式:Female 屏蔽: 電流額定值: 電壓額定值: 觸點(diǎn)電鍍: 外殼材料:Thermoplastic IP 等級: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。