Overview
The STLED316SMTR, produced by STMicroelectronics, is a compact LED controller and driver designed to interface microprocessors with LED displays through a serial 3-wire interface. This component is ideal for applications requiring the control of LED displays in various consumer and industrial devices. It supports up to 6-digit numeric displays and includes key-scanning capabilities for an 8x2 key matrix, making it a versatile and integrated solution for display and input systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SO-24 |
| Supply Voltage (VCC) | 5.0 V ± 10% |
| Operating Temperature Range | -40 °C to 85 °C |
| LED Driver Outputs | 14 outputs (8 segments/6 digits) |
| Load Current Capability per Segment | 40 mA |
| Serial Interface | 3-wire serial bus (CLK, STB, DIN/DOUT) |
| Dimming Capability | 8-step dimming circuit |
| Key-Scanning Matrix | 8x2 matrix |
| ESD Protection | Greater than 4 kV HBM |
Key Features
- LED driver with 14 outputs (8 segments/6 digits) capable of driving up to 48 discrete LEDs.
- 40 mA load current capability for each segment.
- Output pins connected directly to LEDs or can be open-drain.
- Key-scanning for an 8x2 key matrix.
- Low power consumption in standby mode.
- 3-wire serial bus interface (CLK, STB, DIN/DOUT).
- 8-step dimming circuit to control the overall display brightness and individual LEDs.
- Single external resistor for output current setting.
- Inputs with Schmitt trigger for superior noise immunity.
- Built-in power on reset and soft-start circuits.
- ESD protection greater than 4 kV HBM.
Applications
- Set-top-boxes.
- White goods.
- Home appliances.
- DVD players and VCRs.
Q & A
- What is the primary function of the STLED316SMTR?
The STLED316SMTR is a compact LED controller and driver that interfaces microprocessors to LED displays through a serial 3-wire interface. - What type of LED configuration does it support?
It supports common-anode LED digits. - How many discrete LEDs can it drive?
It can drive up to 48 discrete LEDs in an 8 segment/6 digit configuration. - What is the maximum segment current capability?
The maximum segment current is 40 mA. - Does it have key-scanning capabilities?
Yes, it supports key-scanning for an 8x2 key matrix. - What is the operating temperature range of the STLED316SMTR?
The operating temperature range is -40 °C to 85 °C. - How many steps of dimming does it support?
It supports an 8-step dimming circuit. - What type of package is the STLED316SMTR available in?
It is available in an SO-24 package. - Does it have built-in power on reset and soft-start circuits?
Yes, it includes built-in power on reset and soft-start circuits. - What level of ESD protection does it offer?
It offers ESD protection greater than 4 kV HBM.
