GUI para el módulo de evaluación (EVM)
TPS61052
Controlador de LED blanco de 1.2 A de alta potencia con interfaz I2C compatible en encapsulado DSBGA
Hoja de datos
TPS61052
- Four Operational Modes
- Torch and Flash up to ILED = 1200 mA
- Voltage-Regulated Boost Converter: 4.5 V,
5 V, and 5.25 V - Shutdown: 0.3 µlA (Typical)
- Total Solution Circuit Area < 25 mm2
- Up to 96% Efficiency
- I2C-Compatible Interface up to 400 kbps
- Integrated LED Turnon Safety Timer
- Zero Latency TX-Masking Input (TPS61050)
- Hardware Voltage Mode Selection Input
(TPS61052) - Integrated ADC for LED VF Monitoring
- Integrated Low Light Dimming Mode
- LED Disconnect During Shutdown
- Open and Shorted LED Protection
- Overtemperature Protection
- Available in a 12-Pin NanoFree™ (CSP) and
10-Pin QFN Packaging
The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.
The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.
The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).
For highest flexibility, the LED current or the desired output voltage can be programmed through an I2C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turnon time.
When the TPS6105x is not in use, it can be put into shutdown mode through the I2C-compatible interface, reducing the input current to 0.3 µA (typical). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.
Documentación técnica
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Ver todo 8 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | TPS6105x 1.2-A High-Power White LED Driver 2-MHz Synchronous Boost Converter With I2C Compatible Interface datasheet (Rev. A) | PDF | HTML | 30 sep 2015 |
| White paper | Common LED Functions and LED Driver Design Considerations | 21 sep 2020 | ||
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 11 dic 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| Application note | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 29 nov 2017 | ||
| Application note | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 15 jun 2017 | ||
| EVM User's guide | TPS61050EVM-269 and TPS61052EVM-269 (Rev. B) | 29 nov 2007 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 15 sep 2006 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Soporte de software
TPS6105XEVM-SW — Software para módulos de evaluación TPS6105x
The TPS6105x EVM Software provides a software interface for the TPS6105x EVM boards. Use this software to change the TPS6105x IC registers via the USB Interface Adapter.
Herramienta de simulación
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| DSBGA (YZG) | 12 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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