LM3409HV
- LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
- 2-Ω, 1-A Peak MOSFET Gate Drive
- VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
- VIN Range: 6 V to 75 V (LM3409HV, LM3409HV-Q1)
- Differential, High-Side Current Sense
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- 10,000:1 PWM Dimming Range
- 250:1 Analog Dimming Range
- Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
- Low-Power Shutdown and Thermal Shutdown
- Thermally Enhanced 10-Pin, HVSSOP Package
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllersfor step-down (buck) current regulators. They offer wide input voltage range, high-sidedifferential current sense with low adjustable threshold voltage and fast output enable/disablefunction and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currentsup to 5 A are easily achievable.
The LM3409 devices use constant off-time (COFT) control to regulate an accurate constantcurrent without the need for external control loop compensation. Analog and PWM dimming are easy toimplement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.
For all available packages, see the orderable addendum at the end of the data sheet.您可能會感興趣的類似產品
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM3409, -Q1, LM3409HV, -Q1 P-FET Buck Controller for High-Power LED Drivers datasheet (Rev. L) | PDF | HTML | 2016年 5月 23日 |
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013年 5月 3日 | ||
| User guide | AN-2150 LM3450A Evaluation Board (Rev. B) | 2013年 5月 3日 | ||
| EVM User's guide | AN-1953 LM3409HV Evaluation Board (Rev. D) | 2013年 5月 1日 | ||
| User guide | AN-1954 LM3409 Demonstration Board (Rev. D) | 2013年 5月 1日 | ||
| Application note | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 2013年 4月 23日 | ||
| User guide | LM3409HV MR16 Buck-Boost Reference Design User Guide | 2012年 1月 27日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LM3409HVEVAL — LM3409HV 高電壓 LED 降壓控制器評估板
This evaluation board showcases the LM3409HV PFET controller for a buck current regulator. It is designed to drive 12 LEDs (VO = 42V) at a maximum average LED current (ILED = 1.5A) from a DC input voltage (VIN = 48V). The switching frequency (fSW = 400 kHz) is targeted for the nominal operating (...)
TPS2372-3EVM-757 — 適用於照明應用的 TPS2372-3 IEEE802.3bt 3 類 PoE PD 評估模組
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
TPS2372-4EVM-006 — 適合 IEEE802.3bt PoE PD 應用的 TPS2372-4EVM 評估模組
The TPS2372 evaluation module (TPS2372-4EVM-006) contains evaluation and reference circuitry for the TPS2372, which is a IEEE802.3bt PoE PD controller suitable for high power PoE PD applications such as LED lighting and modules.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23880.
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TIDA-01463 — 採用 IEEE802.3bt 乙太網路供電 (PoE) 的連線 LED 照明參考設計
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HVSSOP (DGQ) | 10 | 檢視選項 |
訂購與品質
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建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。