Overview
The HEF4794BT,118 is an 8-stage serial shift register and LED driver IC produced by Nexperia USA Inc. This component is designed to handle data shifting and storage, making it suitable for various LED driver applications. It features a storage latch associated with each stage, allowing data to be transferred from the serial input to the parallel LED driver outputs. The device operates over a wide voltage range of 3 V to 15 V and is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) case.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia USA Inc. |
| Part Number | HEF4794BT,118 |
| Package/Case | 16-SOIC (0.154", 3.90mm width) |
| Mounting Type | Surface Mount |
| Number of Outputs | 8 |
| Output Current per Channel | 40 mA |
| Operating Temperature | -40°C to 125°C (TA) |
| Supply Voltage Range | 3 V to 15 V |
| Frequency | 28 MHz |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | Lead Free / RoHS Compliant |
Key Features
- 8-stage serial shift register with storage latch for each stage.
- Data is shifted on positive-going clock transitions and transferred to the storage register when the strobe input is HIGH.
- Two serial outputs (QS1 and QS2) for cascading multiple HEF4794B devices.
- Output enable input (OE) to control the visibility of data at the outputs.
- Internal switches for high-speed operation in cascaded systems.
- Wide operating temperature range of -40°C to 125°C.
- Lead-free and RoHS compliant.
Applications
- LED display drivers in various electronic devices.
- Serial data transmission and storage in digital systems.
- Cascaded shift register applications requiring high-speed data transfer.
- Industrial control systems and automation.
- Consumer electronics such as displays, signage, and lighting systems.
Q & A
- Q: What is the primary function of the HEF4794BT,118?
A: The HEF4794BT,118 is an 8-stage serial shift register with a storage latch for each stage, designed for LED driver applications.
- Q: What is the package type of the HEF4794BT,118?
A: The HEF4794BT,118 is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) case.
- Q: What is the operating voltage range of the HEF4794BT,118?
A: The device operates over a voltage range of 3 V to 15 V.
- Q: How many outputs does the HEF4794BT,118 have?
A: The HEF4794BT,118 has 8 outputs.
- Q: What is the maximum output current per channel of the HEF4794BT,118?
A: The maximum output current per channel is 40 mA.
- Q: Is the HEF4794BT,118 RoHS compliant?
A: Yes, the HEF4794BT,118 is lead-free and RoHS compliant.
- Q: What is the moisture sensitivity level (MSL) of the HEF4794BT,118?
A: The MSL of the HEF4794BT,118 is 1 (Unlimited).
- Q: How can I cascade multiple HEF4794B devices?
A: You can cascade multiple HEF4794B devices using the two serial outputs (QS1 and QS2).
- Q: What is the operating temperature range of the HEF4794BT,118?
A: The operating temperature range is -40°C to 125°C.
- Q: Where can I find detailed information about the HEF4794BT,118?
A: Detailed information, including datasheets and application notes, can be found on the Nexperia website or through authorized distributors like Ovaga and South Electronics.
