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28x8 Constant Current LED Driver HT16D35B 48LQFP-EP
US$0.93
In stock
Quantity
500
Product ID
HT16D35B-48LQFP-EP
Description
The HT16D35A and HT16D35B are high accuracy constant current and memory mapping LED display controller/drivers. The maximum display capacity of the devices is 224 patterns composed of 28 rows and 8 commons. Using software controlled PWM circuitry, the devices can generate a 64-step Gray Scale (PWM data) and 64 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 (HT16D35B) or an SPI 3-wire serial interface (HT16D35A).
NOTE
- The product image is for showing the product appearance, the pin count shown may not match the product pin count.
Quantity Discounts 
| Select | Quantity | Discount | Unit price |
| 1-9 | - | US$0.93 | |
| 10-99 | 15% | US$0.79 | |
| 100-499 | 25% | US$0.70 | |
| 500+ | 35% | US$0.60 |
Features
- Logic Operating Voltage: 2.7V - 5.5V
- LED display: 28 rows and 8 commons
- LED data RAM1: 28 x 8 x 6 bits = 1344 bits for Gray mode
- LED Data RAM2: 28 x 8 x 6 bits = 1344 bits for Fade mode
- LED Data RAM3: 28 x 8 bits= 224 bits for Binary mode or Matrix masking
- LED data RAM4: 28x8 bits=224 bits for Universal Segment function
- LED data RAM5: 8x8 bits=64 bits for Universal COM function
- Integrated 4.92MHz RC oscillator
- 64-level global brightness scale
- Binary scale mode or Gray scale mode
- Global blinking or fade function
- Universal COM and Universal Segment function
- Automatic scroll function: up/down/left/right
- Continuous lighting function for ROW24 - ROW27
- External current reference control using external resistor
- Supports row port max. 45mA sink constant current
- 8-level current reference adjustment
- Over temperature protection circuit
- Interface : I2C (HT16D35B) or SPI 3-wire (HT16D35A)
- Cascade function for extend applications
Resources
- IC: Holtek HT16D35A/HT16D35B, 28x8 Constant Current LED Driver, including datasheet, package dimensions, etc.)
| HS Code (reference) | 8542.39.00.22-8 |
|---|
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