Packaging information
| Package | Pins SOT-23-THN (DYY) | 14 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS923653
- 4.5-V to 65-V wide input range
- LED common cathode connection
- Integrated 150-mΩ MOSFET with typical 3-A / 6.5-A current limit
- Optional switching frequency: 100 kHz to 2.2 MHz
- Spread spectrum for TPS923653 and TPS923655
- Advanced dimming options:
- Analog dimming (256:1)
- Fast PWM dimming (150-ns pulse width)
- Hybrid and flexible dimming (2,000:1 at 20-kHz PWM, 10,000:1 at 4-kHz PWM, 1,000,000:1 at 120-Hz PWM)
- CC / CV charging mode
- Full protection features:
- LED open and short protection
- Switching FET open and short protection
- External component failure protection
- Cycle-by-cycle current limit
- Thermal shutdown
- Fault output (open drain)
- Configurable thermal foldback curve
- VSON, WSON and SOT23 package options
Description for the TPS923653
The TPS92365x family is a 2-A / 4-A non-synchronous Boost / Buck-Boost LED driver with 4.5-V to 65-V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs as well as charging batteries with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100 kHz to 2.2 MHz with optional spread spectrum feature for better EMI performance.
The TPS92365x family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.
The TPS92365x family also provides multiple systematic protections, including LED open and short, sense resistor open and short , configurable thermal foldback and thermal shutdown. A Fault output sends out acknowledge signals as soon as any fault condition is detected.