| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 1 MHz |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 1.80V (min) |
| Current Rating | 38 mA |
| Case/Package | VSON EP-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 27.5 V |
| Output Current | 500 mA |
| Number of Channels | 1 Channel |
| Number of Positions | 8 Position |
| Quiescent Current | 38.0 µA |
| Number of Regulated Outputs | 1 Output |
| Output Power | 370 mW |
| Switching Frequency | 1 MHz |
| Topology | Boost |
| Input Voltage (Max) | 6 V |
| Input Voltage (Min) | 1.8 V |
| Output Voltage (Max) | 28 V |
| Output Current (Max) | 60 mA |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 1.8V ~ 6V |
| Supply Voltage (Max) | 6 V |
| Supply Voltage (Min) | 1.8 V |
| Input Voltage | 1.8V ~ 6V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Width | 3 mm |
| Weight | 0.0003665026592 kg |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The TPS61042 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 (typ). 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 where the brightness can be controlled by an analog signal as well, as described in the _application information_ section. 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 in case of a high impedance output (e.g. faulty LED).
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