三极管TL431
| 价 格： | 0.13 | |
| 品牌/商标： | 国产 | |
| 型号/规格： | TL431 | |
| 应用范围： | 放大 | |
| 功率特性： | 小功率 | |
| 频率特性： | 中频 | |
| 极性： | NPN型 | |
| 结构： | 点接触型 | |
| 材料： | 硅(Si) | |
| 封装形式： | 直插型 | |
| 封装材料： | 塑料封装 | |
| 营销方式： | 厂家直销 | |
| 产品性质： | 热销 |
厂家直销，长期供应三极管TL431,TO-92，欢迎来电咨询。
dzsc/19/0674/19067425.jpg
dzsc/19/0674/19067425.jpg
Description
The TL431 is three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5 volts) and 37 volts with two external resistors These devices have a typical dynamic output impedance of 0.2W Active output circuitry provides a very sharp turn-on characteristic making these devices excel lent replacement for zener diodes in many applications
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified.)
Parameter | Symbol | Value | Unit |
Cathode Voltage | VKA | 37 | V |
CathodeCurrent Range(Continuous) | IKA | -10～ 150 | mA |
Power Dissipation D.LP Suffix Package P Suffix Package | PD | 800 | mW
|
StorageTemperature Range | TSTG | -55～ 150 | ℃ |
Recommended Operating Conditions
Parameter | Symbol | Min | Typ | Max | Unit |
Cathode Voltage | VKA | VREF | - | 37 | V |
Cathode Current | IKA | 1.0 | - | 100 | mA |
Electrical Characteristics
(TA= 25℃,unless otherwise specified)
Parameter | Symbol | Conditions | TL431 Min Typ Max | Unit | ||
Reference Input Voltage | VREF | VKA=VREF,IKA=10mA | 2.485 | 2.495 | 2.507 | V |
Deviation of Reference Input Voltage Over- Temperature (Note 1) | △VREF/ △T | VKA=VREF，IKA=10mA 0℃≤TA≤70℃ | - |
| 17 | mV |
[[iffi Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage | △VREF/ △VKA | △VKA=10V- IKA VREF =10mA △VKA=36V- 10V | -
- |
| -2.7
-2.0 | mV/V |
Reference Input Current | IREF | IKA=10mA R1=10KΩ，R2=∞ | - |
| 4 | μA |
Deviation of Reference Input Current Over Full Temperature Range | △IREF/△T | IKA=10m R1=10KΩ，R2=∞ 0℃≤TA≤70℃ | - |
| 1.2 | μA |
Minimum Cathode Cur- Rent for Regulation | IKA（MIN） | VKA=VREF | - |
| 1.0 | mA |
Off-Stage Cathode Current | IKA（OFF） | VKA=36V, VREF=0 | - |
| 0．5 | μA |
Dynamic Impedance
| ZKA ZKA | VKA=VREF IKA=1 to 100Ma f≥1.0KHZ | - |
| 0.5 | Ω |
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