LM3429MHX/NOPB
LED Display & Drivers
Technical Specifications
| Type | Description |
|---|---|
| Dimming | PWM;Analog |
| Voltage - Input(AC) | - |
| Switch Tube (built-in/external) | External |
| Constant Current Accuracy | - |
| Voltage - Input(DC) | 4.5V~75V |
| Switching Freq Hz | 2 MHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Type | DC-DC |
| Output Voltage | - |
| Output Current | - |
| Operating Temperature | -40°C~+125°C |
| Features | Over Voltage Protection;Over-Temperature Protection (OTP) |
| Topology | Buck;Boost;Buck-Boost;SEPIC |
| Package / Case | HTSSOP-14-EP |
Product Introduction
The LM3429 is a versatile high voltage N-channel MosFET controller for LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75V, makes the LM3429 ideal for illuminating LEDs in a very diverse, large family of applications.
Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The LM3429 uses Predictive Offtime (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation.
The LM3429 includes a high-voltage startup regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2 MHz, thus enabling compact solutions. Additional features include analog dimming, PWM dimming, overvoltage protection, undervoltage lock-out, cycle-by-cycle current limit, and thermal shutdown.
Features
- AEC-Q100 Grade 1 Qualified for Automotive Applications
- VIN Range From 4.5 V to 75 V
- Adjustable Current Sense Voltage
- High-Side Current Sensing
- 2-Ω, 1-A Peak MosFET Gate Driver
- Input Undervoltage Protection
- Overvoltage Protection
- PWM Dimming
- Analog Dimming
- Cycle-by-Cycle Current Limit
- Programmable Switching Frequency
- Low Profile 14-lead HTSSOP Package
- Thermal Shutdown
Applications
- LED Drivers - Buck, Boost, Buck-Boost, SEPIC
- Indoor and Outdoor SSL
- Automotive
- General Illumination
- Constant-Current Regulators
Datasheet
Alternative Parts
Common LM3429MHX/NOPB alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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