Description
TPS61043DRBR Texas Instruments - Yeehing Electronics
TPS61043: constant current LED driver
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 0.941 |
| 100 — 249 | 0.777 |
| 250 — 999 | 0.558 |
| 1,000 + | 0.29 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | LED Lighting Drivers |
| RoHS | Y |
| Number of Channels | 1 Channel |
| Output Current | 60 mA |
| Input Voltage | 1.8 V to 6 V |
| Operating Frequency | 1 MHz |
| Supply Current - Max | 65 uA |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | SON-8 |
| Series | TPS61043 |
| Packaging | Reel |
| Features | Load Disconnect During Shutdown |
| Operating Temperature Range | - 40 C to + 85 C |
| Output Type | Constant Current |
| Type | Inductive |
| Brand | Texas Instruments |
| Topology | Boost |
| Moisture Sensitive | Yes |
| Pd - Power Dissipation | 370 mW |
| Product Type | LED Lighting Drivers |
| Factory Pack Quantity | 3000 |
| Subcategory | Driver ICs |
| Unit Weight | 0.000808 oz |
For more information, please refer to datasheet
Documents
More Information
The TPS61043 is a high-frequency boost converter with constant current output that drives white LEDs or similar. The LED current is set with the external sense resistor (RS) and is directly regulated by the feedback pin (FB) that regulates the voltage across the sense resistor RS to 252 mV (typical). To control LED brightness, the LED current can be pulsed by applying a PWM (pulse width modulated) signal with a frequency range of 100 Hz to 50 kHz to the control pin (CTRL). To allow higher flexibility, the device can be configured so that the brightness is controlled by an analog signal as well, as described in Application Information. To avoid possible leakage currents through the LEDs during shutdown, the control pin (CTRL) disables the device and disconnects the LEDs from ground. For maximum safety during operation, the output has integrated overvoltage protection that prevents damage to the device by limiting the output voltage to typically 18 V in case of a high-impedance output (for example, faulty LED). The TPS61043 device provides a solution for applications where higher LED currents or more than four LEDs in series must be powered.
