Datasheet Texas Instruments LM3421 — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM3421 |
用于恒流LED驱动器的N通道控制器
数据表
LM342x/-Q1 N-Channel Controllers for Constant-Current LED Drivers datasheet
PDF, 2.5 Mb, 修订版: F, 档案已发布: Nov 4, 2014
从文件中提取
价格
状态
| LM3421MH/NOPB | LM3421MHX/NOPB | |
|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | Yes |
打包
| LM3421MH/NOPB | LM3421MHX/NOPB | |
|---|---|---|
| N | 1 | 2 |
| Pin | 16 | 16 |
| Package Type | PWP | PWP |
| Industry STD Term | HTSSOP | HTSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 92 | 2500 |
| Carrier | TUBE | LARGE T&R |
| Device Marking | LM3421 | LM3421 |
| Width (mm) | 4.4 | 4.4 |
| Length (mm) | 5 | 5 |
| Thickness (mm) | 1 | 1 |
| Pitch (mm) | .65 | .65 |
| Max Height (mm) | 1.2 | 1.2 |
| Mechanical Data | 下载 | 下载 |
参数化
| Parameters / Models | LM3421MH/NOPB | LM3421MHX/NOPB |
|---|---|---|
| Dimming Method | Analog,PWM | Analog,PWM |
| Input Voltage, Type | DC/DC | DC/DC |
| Iout(Max), A | 5 | 5 |
| Iq(Typ), mA | 2 | 2 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 |
| Package Group | HTSSOP | HTSSOP |
| Package Size: mm2:W x L, PKG | 16HTSSOP: 22 mm2: 4.4 x 5(HTSSOP) | 16HTSSOP: 22 mm2: 4.4 x 5(HTSSOP) |
| Power Factor Correction, Min | N/A | N/A |
| Rating | Catalog | Catalog |
| Regulated Outputs | 1 | 1 |
| Special Features | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown |
| Switching Frequency(Max), kHz | 2000 | 2000 |
| Switching Frequency(Min), kHz | 100 | 100 |
| Topology | Boost,Boost Controller,Buck-Boost,Sepic | Boost,Boost Controller,Buck-Boost,Sepic |
| Type | Controller,Inductive | Controller,Inductive |
| Vin(Max), V | 75 | 75 |
| Vin(Min), V | 4.5 | 4.5 |
| Vout(Max), V | 72 | 72 |
| Vout(Min), V | 3 | 3 |
| Vref, V | 1.24 | 1.24 |
生态计划
| LM3421MH/NOPB | LM3421MHX/NOPB | |
|---|---|---|
| RoHS | Compliant | Compliant |
应用须知
- AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)PDF, 60 Kb, 修订版: A, 档案已发布: Apr 23, 2013
The world seems to be poised to make the leap to LED lighting. Incandescent has been deemed tooinefficient, which it is, and fluorescent lighting often does not achieve the lifetime it claims. Fluorescentalso has another set of baggage, dangerous chemicals. So the logical choice that most people believe cantake the crown is high brightness (HB) LEDs. HBLEDs are becoming more attractive as th - AN-1656 Design Challenges of Switching LED Drivers (Rev. A)PDF, 171 Kb, 修订版: A, 档案已发布: May 3, 2013
Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and
模型线
系列: LM3421 (2)
制造商分类
- Semiconductors> Power Management> LED Driver> LED Lighting - Illumination