STMicroelectronics STP16CP05
Low-voltage 16-bit constant current LED sink driver
The STP16CP05 is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The STP16CP05 contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bit, D-type storage register. In the output stage, sixteen regulated current sources provide from 5 mA to 100 mA constant current to drive the LEDs. The output current setup time is 40 ns (typ.), thus improving the system performance. The LEDs' brightness can be controlled by using an external resistor to adjust the STP16CP05 output current. The STP16CP05 guarantees a 20 V output driving capability, allowing users to connect more LEDs in series. The high clock frequency, 30 MHz, makes the device suitable for high data rate transmission. The 3.3 V voltage supply is useful in applications that interface with a 3.3 V micro controller.
Key features
- 16 Constant current output channels
- Adjustable output current through external resistor
- Serial data IN/parallel data OUT
- Can be driven by a 3.3V microcontroller
- ESD protection 2kV HBM, 200V MM
- 55°C/W Thermal resistance junction ambient
- Low voltage power supply down to 3 V
Applications
- Automotive lighting
- Home lighting
- Display backlighting
- City lighting
Available tools
HB LED without Diagnostic (32 Led) based on STP16CP05
This evaluation board represents a cost effective solution to drive an array of high brightness LEDs, using the LED driver STP16CP05. This driver provides the same constant current for each of its output channels, thus there is no difference in brightness and color between the LEDs.
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