Overview
The HEF4794BT-Q100J is an 8-stage shift-and-store register LED driver produced by Nexperia USA Inc. This integrated circuit is designed for use in various electronic applications, particularly in automotive environments due to its compliance with the Automotive Electronics Council (AEC) standard Q100 (Grade 1). The device features a serial input and two serial outputs, enabling cascading, and includes a storage register that can transfer data to the outputs based on the output enable input.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4794BT-Q100 | 3.0 - 15 | CMOS | -20 | 45 | 28 | medium | -40~85 | 82 | 5.3 | 41.3 | SO16 (SOT109-1) |
Key Features
- 8-stage shift-and-store register with LED driver capabilities.
- Serial input and two serial outputs for cascading.
- Data transfer from shift register to storage register based on the STR input.
- Output enable input (OE) to control output states.
- Wide supply voltage range from 3.0 V to 15.0 V.
- CMOS low power dissipation and high noise immunity.
- Complies with JEDEC standard JESD 13-B.
- ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
Applications
The HEF4794BT-Q100J is suitable for various applications, particularly in the automotive sector due to its AEC-Q100 qualification. It can be used in:
- Automotive systems requiring shift-and-store register functionality.
- LED driver applications where serial data transfer is necessary.
- Industrial and consumer electronics where robust and reliable shift registers are needed.
Q & A
- What is the HEF4794BT-Q100J used for? The HEF4794BT-Q100J is an 8-stage shift-and-store register LED driver, primarily used in automotive and industrial applications.
- What is the supply voltage range of the HEF4794BT-Q100J? The supply voltage range is from 3.0 V to 15.0 V.
- What are the logic switching levels of the HEF4794BT-Q100J? The logic switching levels are CMOS.
- What is the maximum frequency of operation for the HEF4794BT-Q100J? The maximum frequency of operation is 28 MHz.
- What is the output drive capability of the HEF4794BT-Q100J? The output drive capability is -20 mA.
- What is the operating temperature range of the HEF4794BT-Q100J? The operating temperature range is from -40°C to 85°C.
- Does the HEF4794BT-Q100J have ESD protection? Yes, it has ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- What package type is the HEF4794BT-Q100J available in? The HEF4794BT-Q100J is available in the SO16 (SOT109-1) package.
- Is the HEF4794BT-Q100J compliant with any automotive standards? Yes, it is compliant with the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- How does the data transfer work in the HEF4794BT-Q100J? Data is transferred from the shift register to the storage register when the STR input is HIGH, and data appears at the outputs when the OE input is HIGH.
