SNVS465G October 2006 – September 2015 LM3404 , LM3404HV
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
-
8 Application and Implementation
- 8.1 Application Information
- 8.2 Typical Applications
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
- DDA|8
訂購信息
1 Features
- Integrated 1-A MOSFET
- VIN Range 6 V to 42 V (LM3404)
- VIN Range 6 V to 75 V (LM3404HV)
- 1.2-A Output Current Overtemperature
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- Separate PWM Dimming and Low Power Shutdown
- Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
- Thermal Shutdown Protection
- SOIC-8 Package, SO PowerPAD™-8 Package
2 Applications
- LED Drivers
- Constant Current Sources
- Automotive Lighting
- General Illumination
- Industrial Lighting
3 Description
The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of
1.5-A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM3404, LM3404HV | SOIC (8) | 3.91 mm × 4.90 mm |
| SO PowerPAD (8) | 3.90 mm × 4.89 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
Typical Application Diagram
