STAP16DPPS05：Low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving for automotive applications
The STAP16DPPS05 is a monolithic, low voltage, low current power 16-bit shift register
designed for LED panel displays. The device 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 are designed to provide 3 to 40 mA of constant current to drive the LEDs.
The STAP16DPPS05 features the open and short LED detection on the outputs. The detection
circuit checks 3 different conditions which may occur on the output line: short to GND, short
to VO or open line. The data detection results are loaded in the shift register and shifted
out via the serial line output. The detection functionality is implemented without increasing
the pin number through a secondary function of the output enable and latch pin (DM1 and DM2
respectively). A dedicated logic sequence allows the device to enter or leave detection mode.
Through an external resistor, users can adjust the output current of the STP16DPPS05 thus
controlling the light intensity of the LEDs. In addition, the user can adjust the intensity of
the brightness of the LED’s from 0% to 100% through the OE/DM2 pin. The
auto power shutdown and auto power-ON feature allows the device to save power with no external
intervention. The STAP16DPPS05 guarantees a 20 V output driving capability, allowing users to
connect more LEDs in series. The high clock frequency, 30 MHz also satisfies the system
requirement of high volume data transmission. The 3.3 V of voltage supply is very useful for
applications interfacing any microcontroller from 3.3 V micro. Compared with a standard TSSOP
package, the TSSOP exposed pad increases the capability of heat dissipation by a factor of
2.5.
Key Features
- AECQ100 qualification
- Low voltage power supply down to 3 V
- 16 constant current output channels
- Adjustable output current through external resistor
- Short and open output error detection
- Serial data IN/parallel data OUT
- 3.3 V micro driver-able
- Auto power-saving
- Output current: 3 - 40 mA
- Max. clock frequency: 30 MHz
- 20 V current generator rated voltage
- Power supply voltage: from 3 V to 5.5 V
- Thermal shutdown for overtemperature protection
- ESD protection 2.0 KV HBM
产品规格
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解决方案评估工具
| 型号 | 制造商 | Description |
|---|
| STEVAL-ILL060V1 | | High brightness LED array driver with diagnostics for automotive applications based on the STAP16DPPS05 and STM8A |
样片和购买
| 型号 | Quantity | Unit Price (US$)
* | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STAP16DPPS05XTTR | 1000 | 0.596 | HTSSOP24 | Tape And Reel | -40 | 125 | NEC | EAR99 | PHILIPPINES |
质量和可靠性
