Overview
The STP08CP05 is a monolithic, low voltage, low current, power 8-bit shift register designed specifically for LED panel displays. It contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The device is equipped with eight regulated current sources that provide a constant current of 5-100 mA to drive LEDs, with an output current setup time of 11 ns (typ), enhancing system performance. The STP08CP05 is backward compatible in functionality and footprint with the STP8C/L596 and offers adjustable output current through an external resistor, allowing users to control the light intensity of LEDs. Additionally, the brightness intensity can be adjusted from 0% to 100% via the OE pin.
The device supports a 20 V output driving capability, enabling the connection of more LEDs in series, and features a high clock frequency of 30 MHz for high-volume data transmission. It is also compatible with 3.3 V microcontrollers and offers improved heat dissipation with the TSSOP exposed pad package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VDD) | 3.0 to 5.5 | V |
| Output Voltage (VO) | -0.5 to 20 | V |
| Output Current (IO) | 5 to 100 | mA |
| Clock Frequency (fCLK) | Up to 30 | MHz |
| Operating Temperature Range (TOPR) | -40 to +125 | °C |
| Storage Temperature Range (TSTG) | -55 to +150 | °C |
| Thermal Resistance Junction-Ambient (RthJA) | 37.5 (TSSOP exposed pad) | °C/W |
| ESD Protection | 2.5 kV HBM, 200 V MM | - |
Key Features
- Low voltage power supply down to 3 V
- 8 constant current output channels
- Adjustable output current through external resistor
- Serial data IN/parallel data OUT
- 3.3 V micro driver-able
- Output current: 5-100 mA
- 30 MHz clock frequency
- Available in high thermal efficiency TSSOP exposed pad
- ESD protection 2.5 kV HBM, 200 V MM
Applications
The STP08CP05 is primarily designed for LED panel displays, making it suitable for various applications such as:
- LED signage and billboards
- Display panels in industrial and commercial settings
- Automotive display systems
- Consumer electronics with LED displays
Q & A
- What is the primary application of the STP08CP05?
The STP08CP05 is primarily designed for LED panel displays.
- What is the range of the supply voltage for the STP08CP05?
The supply voltage range is from 3.0 V to 5.5 V.
- How can the output current of the STP08CP05 be adjusted?
The output current can be adjusted through an external resistor.
- What is the maximum clock frequency of the STP08CP05?
The maximum clock frequency is 30 MHz.
- What is the thermal resistance junction-ambient for the TSSOP exposed pad package?
The thermal resistance junction-ambient is 37.5 °C/W for the TSSOP exposed pad package.
- Does the STP08CP05 have ESD protection?
- What is the operating temperature range of the STP08CP05?
The operating temperature range is from -40 °C to +125 °C.
- Can the STP08CP05 be used with 3.3 V microcontrollers?
- How many constant current output channels does the STP08CP05 have?
- What is the maximum output current of the STP08CP05?
