STP16DPP05 Low voltage 16-bit constant current LED sink driver with output error detection

The STP16DPP05 is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The device features 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 STP16DPP05 features open and short LED detection on the outputs. The detection circuit checks for 3 different conditions that can occur on the output line: short to GND, short to VO or open line.

The data detection results are loaded in the shift registers and shifted out via the serial line output.

The detection functionality is implemented without increasing the pin count, 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 exit from detection mode. The STP16DPP05 output current can be adjusted through an external resistor to control the light intensity of the LEDs.

LED brightness is adjustable from 0% to 100% via the OE/DM2 pin.

The STP16DPP05 guarantees a 20 V output driving capability, allowing users to connect more LEDs in series. The high 30 MHz clock frequency makes the device suitable for high data rate transmission. The 3.3 V supply is well suited for applications which interface a 3.3 V MCU.

Compared to a standard TSSOP package, the TSSOP with exposed pad increases heat dissipation capability by a factor of 2.5

技术特性

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 MCU-driving capability
Output current: 3 to 40 mA
30 MHz clock frequency
Available in high thermal efficiency TSSOP exposed pad
ESD protection: 2 kV HBM, 200 V MM

功能框图

STP16DPP05 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STP16DPP05MTR	Active		1000	SO-24	Tape And Reel	-40 °C-125 °C	STP16DPP05MTR
STP16DPP05TTR	Active		1000	TSSOP 24	Tape And Reel	-40 °C-125 °C	STP16DPP05TTR
STP16DPP05PTR	Active		1000	QSOP24	Tape And Reel	-40 °C-125 °C	STP16DPP05PTR
STP16DPP05XTTR	Active		1000	HTSSOP24	Tape And Reel	-40 °C-125 °C	STP16DPP05XTTR

DATASHEET

描述	版本	大小
STP16DPP05 : Low voltage 16-bit constant current LED sink driver with output error detection	1	945KB

APPLICATION NOTES

描述	版本	大小
AN3981: LED array drivers	1	3554KB

PRODUCT PRESENTATIONS

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LED lighting solutions for traffic signals	1.0.0	1858KB
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