ULN2003LV
- 7-Channel High Current Sink Drivers
- Supports up to 8V Ouput Pullup Voltage
- Supports a Wide Range of 3V-to-5V Relay and
Inductive Coils - Low Output VOL of 0.4V (Typical) With
- 100mA (Typical) Current Sink per Channel at
3.3V Logic Input(1) - 140mA (Typical) Current Sink per Channel at
5.0V Logic Input(1)
- 100mA (Typical) Current Sink per Channel at
- Compatible to 3.3V and 5.0V Microcontrollers and
Logic Interface - Internal Free-Wheeling Diodes for Inductive Kick-
back Protection - Input Pulldown Resistors Allows3-stating the Input
Driver - Input RC-Snubber to Eliminate Spurious
Operation in Noisy Environment - Low Input and Output Leakage Currents
- Easy to use Parallel Interface
- ESD Protection Exceeds JESD 22
- 2kV HBM, 500V CDM
- Available in 16-Pin SOIC and TSSOP Packages
The ULN2003LV is a low-voltage and low power upgrade of TI’s popular ULN2003 family of 7-channel Darlington transistor array. The ULN2003LV sink driver features 7 low output impedance drivers to support low voltage relay and inductive coil applications. The low impedance drivers minimize on-chip power dissipation; up to 5 times lower for typical 3V relays. The ULN2003LV driver is pin-to-pin compatible with ULN2003 family of devices in similar packages.
The ULN2003LV supports 3.3V to 5V CMOS logic input interface thus making it compatible to a wide range of micro-controllers and other logic interfaces. The ULN2003LV features an improved input interface that minimizes the input DC current drawn from the external drivers. The ULN2003LV features an input RC snubber that greatly improves its performance in noisy operating conditions. The ULN2003LV channel inputs feature an internal input pull-down resistor thus allowing input logic to be tri-stated. The ULN2003LV may also support other logic input levels, for example, TTL and 1.8V, refer to the Application Information section for details.
The ULN2003LV provides flexibility of increasing current sink capability through combining several adjacent channels in parallel. Under typical conditions the ULN2003LV can support up to 1.0A of load current when all 7-channels are connected in parallel. The ULN2003LV can also be used in a variety of applications requiring a sink drivers like driving LEDs and Logic Level Shifting.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | ULN2003LV 7-Channel Relay and Inductive Load Sink Driver datasheet (Rev. B) | PDF | HTML | 2015/6/30 | ||
| 電子書 | 11 Ways to Protect Your Power Path | 2019/7/3 | ||||
| 應用說明 | Improved Thermal Dissipation and Energy Efficiency for Peripheral Driving | 2014/10/30 |
設計與開發
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TIDC-BLE-METER-READING — 適用於能源監測的 Bluetooth 低耗能參考設計
TIDC-BLE-METER-READING 參考設計著重於使用 SimpleLink™ CC2650 多標準無線 MCU 和對應的 SensorTag 模組，透過 Bluetooth® 低功耗 (BLE) 鏈路讀取能源監控裝置的應用。然後，將該模組連接到設計 TIDM-3OUTMSTSTRP 的硬體（稍作修改）作為計量資料來源。該參考設計還包括一個 Android 應用程式，該應用程式可用作遠端讀取器和控制終端。
TIDC-WIFI-METER-READING — Wi-Fi 電源插座/能源監測器參考設計
TIDC-WIFI-METER-READING 為 TIDM-3OUTSMTSTRP 智慧電源插座設計新增 Wi-Fi® 通訊功能。Wi-Fi 連線由 SimpleLink™ Wi-Fi CC32000 無線 MCU 提供。遠端使用者可監控插入三個插座中每個插座的負載耗電量，並控制繼電器以開啟和關閉電源。智慧電源插座需要連線，方可發揮最大作用，提升資料中心等應用能源效率。TIDM-BLE-MTR-READING 參考設計提供另一種連線選項。
TIDM-3OUTSMTSTRP — 三輸出智慧電源插座參考設計
此設計使用 MSP430 MCU 實作高準確度單相嵌入式計量智慧電源插座應用。專為支援測量 AC 電壓、電流、有功功率、無功功率、視在功率、頻率，功率因數所打造，並分別測量 3 插槽。新增額外硬體，提供繼電器控制以及有線/無線通訊等更進一步的開發功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
訂購與品質
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