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8×9 Constant Current LED Driver HT16D31B 16NSOP-EP (5 pieces)

US$1.96

In stock

Quantity

40 sets (1 set = 5 pieces)

Product ID

HT16D31B-16NSOP-EP

8×9 Constant Current LED Driver HT16D31B 16NSOP-EP

Description

The HT16D31A and HT16D31B are high accuracy constant current and memory mapping LED display controller/drivers. The maximum display capacity is 72 patterns composed of 8 rows and 9 commons. Using software controlled PWM circuitry, the devices can generate a 256-step Gray Scale (PWM data) and 256 LED illumination levels.

The devices provide constant current output control using software controlled for each row output terminal. A serial interface is provided to allow the devices to receive instructions for its command mode and data mode. Only three lines are required for device interfacing to a host controller. The display capacity can be easily extended by cascading the devices thus expanding its application possibilities. The devices are compatible with most microcontrollers offering easy interfacing via their two serial interfaces, an I²C interface (HT16D31B) or an SPI 3-wire serial interface (HT16D31A).

NOTE

Each purchasing unit includes 5 pieces of IC.
The product image is for showing the product appearance, the pin count shown may not match the product pin count.

Quantity Discounts refresh image

Select	Quantity	Discount	Unit price
	1-9	-	US$1.96
	10-99	15%	US$1.67
	100-499	25%	US$1.47
	500+	35%	US$1.27

For more quantity discounts please contact us

8×9 Constant Current LED Driver HT16D31B 16NSOP-EP

Features

Logic Operating Voltage: 2.7V -5.5V
LED Driver Operating Voltage: 4.5V - 5.5V
LED Display: 9 combinations of output pins (CA0 - CA8), 8 rows and 9 commons LED Matrix
LED Data RAM1(Max.): 8 × 9 × 8 × (2) bits = (144) × 8 bits for Gray mode
LED Data RAM2(Max.): 8 × 9 × 4 × (2) bits = (72) × 8 bits for Fade mode
LED Data RAM3(Max.): 1 × 9 × 8 × (2) bits = (18) × 8 bits for LED On/Off Control
Integrated 2.4MHz RC oscillator
2 frame memory for animations
256-level global brightness scale
Binary scale mode or Gray scale mode
Global blinking or fade function
Automatic scroll function: left/right
Internal Current Reference Control
Support max. 48mA Sink Constant Current
16-level Maximum current setup selection
Current matching to ±3%
Over temperature protection circuit
Open/short protection circuit for each dot
Interface : I²C (HT16D31B) or SPI 3-wire (HT16D31A)
Cascade function for extend applications

Resources

IC: Holtek HT16D31A/HT16D31B, 8×9 Constant Current LED Driver (including datasheet, package iniformation, etc.)
Application Note: AN0568EN, HT16D33A/B and HT16D31A/B LED Driver Application Guidelines