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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 1.1A 10SON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：6V
- Voltage - Output：17V
- Current - Output / Channel：1.1A (Switch)
- Frequency：1.2MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-SON (2.5x2.5)
- Grade：-
- Qualification：-
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Overview
The TPS61166DSKT is a white LED driver IC from Texas Instruments featuring an integrated power diode and fast burst mode dimming. It operates as a DC-DC step-up regulator with a switching frequency of 1.2 MHz. The device supports a supply voltage range of 2.5 V to 6 V and delivers a switch current of 1.1 A. It provides a single output capable of reaching 17 V, with a maximum duty cycle of 93%. The component functions within an operating temperature range of -40°C to +85°C and is housed in a compact 10-SON (2.5x2.5 mm) package.
Feature Summary
- Integrates a high-efficiency power diode to minimize external component count
- Supports PWM dimming for precise brightness control
- Features fast burst mode dimming capability for low-current applications
Applications
- Backlight drivers for mobile devices
- White LED illumination systems
- Portable electronic display modules
Procurement Notes
Verify the exact suffix 'DSKT' against the manufacturer's official datasheet to confirm the specific tape-and-reel packaging configuration and temperature grade. Ensure the ordering part number matches the required pinout and thermal pad specifications for your PCB layout. Cross-reference the revision level to guarantee compatibility with existing design files.
Selection Notes
Select this component when designing space-constrained LED backlight circuits requiring high efficiency. The integrated power diode reduces solution size compared to discrete solutions. Verify that the input voltage range of 2.5 V to 6 V aligns with the system power source. Confirm that the 1.1 A switch current meets the peak LED drive requirements without exceeding thermal limits in the 10-SON package.
Part Context
This part belongs to Texas Instruments' family of LED driver ICs designed for portable electronics. It specifically targets applications needing a boost converter topology for driving white LEDs from a single-cell lithium-ion battery or similar low-voltage source. The integration of the driver and power stage simplifies the bill of materials for consumer electronics manufacturers.
Replacement Considerations
Consult the official TI replacement matrix for direct pin-to-pin compatible alternatives. Verify electrical parameters such as switching frequency and output current capabilities before substituting. Ensure any alternative maintains the same 10-SON package dimensions for mechanical fit.
