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Data sheet
TPS61165
- 3-V to 18-V Input voltage range
- 38-V Open LED protection
- 200-mV Reference voltage with 2% accuracy
- 1.2-A Switch FET with 1.2-MHz switching frequency
- Flexible one-wire digital and PWM brightness control
- Built-in soft start
- Up to 90% efficiency
- 2-mm × 2-mm × 0.8-mm 6-Pin WSON package with thermal pad, and SOT-23 package
With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.
The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the Typical Application drawing below. During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse-width-modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165 device does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open-LED protection that disables the TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.
Technical documentation
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Support software
TPS6116XEVM-SW — Software for TPS6116x Evaluation Modules
The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.
Simulation model
TPS61165 Unencrypted PSpice Transient Model Package (Rev. B)
SLVMBP3B.ZIP (583 KB) - PSpice Model
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
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 (...)
Reference designs
TIDA-01364 — Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design
This reference design conserves power and extends LCD backlight life by dynamically adjusting the LCD backlight brightness relative to the environment's ambient light levels. A capacitive proximity sensor saves power and increases LCD backlight life by waking up the system from sleep or (...)
Reference designs
TIDA-00660 — 70V, 60mA White LED Driver with Dimming Control and Automatic Thermal Scale-Back Reference Design
Compact, High Efficienct (>90%) White LED Driver. Drives a 440 lumen White LED at up to 70V at up to 60mA from a 6V to 18V source. Includes voltage controlled dimming with automatic thermal to current scale-back for preventing high LED temperatures. Designed for genral purpose (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
Ordering & quality
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