TPS61042DRBR
Active30-V, 500-MA SWITCH BOOST CONVERTER IN QFN-8 FOR WHITE LED APPLICATIONS
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TPS61042DRBR
Active30-V, 500-MA SWITCH BOOST CONVERTER IN QFN-8 FOR WHITE LED APPLICATIONS
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS61042DRBR |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 60 mA |
| Dimming | PWM |
| Frequency | 1 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-VDFN Exposed Pad |
| Supplier Device Package | 8-SON (3x3) |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 27.5 V |
| Voltage - Supply (Max) [Max] | 6 V |
| Voltage - Supply (Min) [Min] | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.40 | |
| 10 | $ 1.25 | |||
| 25 | $ 1.19 | |||
| 100 | $ 0.98 | |||
| 250 | $ 0.91 | |||
| 500 | $ 0.81 | |||
| 1000 | $ 0.64 | |||
| Digi-Reel® | 1 | $ 1.40 | ||
| 10 | $ 1.25 | |||
| 25 | $ 1.19 | |||
| 100 | $ 0.98 | |||
| 250 | $ 0.91 | |||
| 500 | $ 0.81 | |||
| 1000 | $ 0.64 | |||
| Tape & Reel (TR) | 3000 | $ 0.59 | ||
| 6000 | $ 0.56 | |||
| 15000 | $ 0.54 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.04 | |
| 100 | $ 0.80 | |||
| 250 | $ 0.59 | |||
| 1000 | $ 0.42 | |||
Description
General part information
TPS61042 Series
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 RSto 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 theapplication informationsection. 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).
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 RSto 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 theapplication informationsection. 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).
Documents
Technical documentation and resources
