- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377702 > LT1431M (Linear Technology Corporation) Programmable Reference PDF資料下載
參數(shù)資料
| 型號： | LT1431M |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Programmable Reference |
| 中文描述： | 可編程參考 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 272K |
| 代理商： | LT1431M |
5
LT1431
PI FU
COLL (Pin 1):
Open collector of the output transistor. The
maximum pin voltage is 26V. The saturation voltage at
100mA is approximately 1V.
COMP (Pin 2):
Base of the driver for the output transistor.
This pin allows additional compensation for complex
feedback systems and shutdown of the regulator. It must
be left open if unused.
V
+
(Pin 3):
Bias voltage for the entire shunt regulator. The
maximum input voltage is 36V and the minimum to
operate is equal to V
REF
(2.5V). The quiescent current is
typically 0.6mA.
R
TOP
(Pin 4):
Top of the on-chip 5k-5k resistive divider
that guarantees 1% accuracy of operation as a 5V shunt
regulator with no external trim. The pin is tied to COLL for
self-contained 5V operation. It may be left open if unused.
See note on parasitic diodes below.
GND-S (Pin 5):
Ground reference for the on-chip resistive
divider and shunt regulator circuitry except for the output
transistor. This pin allows external current limit of the
output transistor with one resistor between GND-F (force)
and GND-S (sense).
GND-F (Pin 6):
Emitter of the output transistor and sub-
strate connection for the die.
U
R
MID
(Pin 7):
Middle of the on-chip resistive divider string
between R
TOP
and GND-S. The pin is tied to REF for self-
contained 5V operation. It may be left open if unused.
REF (Pin 8):
Control pin of the shunt regulator with a 2.5V
threshold. If V
+
> 3V, input bias current cancellation
reduces I
B
to 0.2
μ
A typical.
COMP, R
TOP
, R
MID
, and REF have static discharge protec-
tion circuits that must not be activated on a continuous
basis. Therefore, the absolute maximum DC voltage on
these pins is 6V, well beyond the normal operating condi-
tions.
As with all bipolar ICs, the LT1431 contains parasitic
diodes which must not be forward biased or else anoma-
lous behavior will result. Pin conditions to be avoided are
R
TOP
below R
MID
in voltage and any pin below GND-F in
voltage (except for GND-S).
The following pin definitions apply to the Z package.
CATHODE (Pin 1):
Corresponds to COLL and V
+
tied
together.
ANODE (Pin 2):
Corresponds to GND-S and GND-F tied
together.
REF (Pin 3):
Corresponds to REF.
W
IAGRA
BLOCK
LT1431 BD01
COMP
V+
GND-FORCE
GND-SENSE
R
TOP
REF
R
MID
2.5V
+
–
gm =
4mA/V
5k
COLLECTOR
8
7
5
4
3
2
1
6
5k
相關PDF資料 |
PDF描述 |
|---|---|
| LT1431 | Programmable Reference(可編程電壓基準) |
| LT1432 | 5V High Efficiency Step-Down Switching Regulator Controller |
| LT1432-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1432CN8 | 5V High Efficiency Step-Down Switching Regulator Controller |
| LT1432CN8-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1431MJ8 | 制造商:Linear Technology 功能描述:V-Ref Adjustable 2.5V to 36V 100mA 8-Pin CDIP |
| LT1431MJ8#PBF | 功能描述:IC VREF SHUNT ADJ 8-CERDIP RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:- 標準包裝:1 系列:- 基準類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數(shù):1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數(shù):1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應商設備封裝:20-CLCC 包裝:管件 |
| LT1431MJ8-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Programmable Reference |
| LT1431MJ8-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Programmable Reference |
| LT1431MPS8#PBF | 功能描述:IC VREF SHUNT ADJ 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:- 標準包裝:2,000 系列:- 基準類型:旁路，可調(diào)節(jié)，精度 輸出電壓:1.24 V ~ 16 V 容差:±0.5% 溫度系數(shù):- 輸入電壓:1.24 V ~ 16 V 通道數(shù):1 電流 - 陰極:100µA 電流 - 靜態(tài):- 電流 - 輸出:20mA 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:TO-226-3、TO-92-3（TO-226AA）成形引線 供應商設備封裝:TO-92-3 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復。