Overview
The HEF4894BT,112 is a 12-stage serial shift-and-store register LED driver produced by Nexperia USA Inc. This integrated circuit is part of the 4000B series and is designed for various electronic applications requiring serial-to-parallel data conversion. The device features a storage latch associated with each stage, allowing data to be strobed from the serial input to the parallel LED driver outputs. It operates with a wide supply voltage range from 3.0 V to 15.0 V, making it versatile for different system requirements.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Number of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4894BT | 3.0 - 15 | CMOS | -20 | 45 | 28 | 12 | medium | -40 ~ 85 | 77 | 20 | 53 | SO20 (SOT163-1) |
Key Features
- Wide Supply Voltage Range: Operates from 3.0 V to 15.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Provides robust operation in noisy environments.
- Fully Static Operation: No clock pulse is required for data storage.
- Serial and Parallel Outputs: Two serial outputs (QS1 and QS2) for cascading multiple devices.
- Output Enable (OE) Input: Controls the output state of the LED driver outputs.
- Compliance with Standards: Meets JEDEC standard JESD 13-B and has high ESD protection (HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
Applications
The HEF4894BT,112 is suitable for a variety of applications across different industries, including:
- Automotive Systems: For display and lighting control in vehicles.
- Industrial Control Systems: For serial-to-parallel data conversion in industrial automation.
- Consumer Electronics: For display and LED lighting in consumer devices.
- Computing and Power Systems: For data transfer and control in computing and power management systems.
Q & A
- What is the primary function of the HEF4894BT,112?
The primary function is to act as a 12-stage serial shift-and-store register LED driver, converting serial data to parallel output.
- What is the operating voltage range of the HEF4894BT,112?
The device operates over a voltage range of 3.0 V to 15.0 V.
- What type of logic does the HEF4894BT,112 use?
The device uses CMOS logic.
- How many bits does the HEF4894BT,112 handle?
The device handles 12 bits.
- What is the maximum clock frequency for the HEF4894BT,112?
The maximum clock frequency is 28 MHz.
- What are the serial output options for cascading devices?
The device provides two serial outputs (QS1 and QS2) for cascading multiple HEF4894BT devices.
- What is the package type for the HEF4894BT,112?
The package type is SO20 (SOT163-1).
- What are the operating temperature ranges for the HEF4894BT,112?
The device operates from -40 °C to +85 °C and from -40 °C to +125 °C.
- Does the HEF4894BT,112 comply with any specific standards?
Yes, it complies with JEDEC standard JESD 13-B and has high ESD protection.
- What is the status of the HEF4894BT,112 part number?
The HEF4894BT,112 is listed as withdrawn or end-of-life.
- Where can I find more detailed documentation for the HEF4894BT,112?
Detailed documentation, including datasheets and application notes, can be found on the Nexperia website.
