Overview
The HEF4894BTT-Q100118, produced by NXP USA Inc. (now part of Nexperia), is a 12-stage serial shift-and-store register LED driver. This component is designed to handle serial data input and store it in a parallel format, making it suitable for driving LEDs in various 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 upon a strobe signal. The device operates over a wide supply voltage range and is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making it reliable for automotive and other demanding environments.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Type Number | HEF4894BTT-Q100118 | - |
| Package | SOT163-1 (SO20) | - |
| Supply Voltage (VDD) | 3 V to 15 V | - |
| Operating Temperature | -40 °C to +85 °C and -40 °C to +125 °C | - |
| Number of Stages | 12-stage serial shift register | - |
| Output Type | Parallel LED driver outputs (QP0 to QP11) | - |
| Serial Outputs | QS1 and QS2 for cascading | - |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | - |
| Power Dissipation | Total power dissipation: 500 mW (SO20 package) | - |
Key Features
- Automotive product qualification in accordance with AEC-Q100 (Grade 1)
- Wide supply voltage range from 3.0 V to 15.0 V
- CMOS low power dissipation
- High noise immunity
- Fully static operation
- Standardized symmetrical output characteristics
- Complies with JEDEC standard JESD 13-B
- ESD protection: HBM and CDM compliant
Applications
The HEF4894BTT-Q100118 is suitable for various applications, including:
- Automotive systems: Due to its AEC-Q100 qualification, it is ideal for use in automotive electronics.
- LED display systems: It can be used to drive LEDs in display panels and signage.
- Industrial control systems: Its robustness and wide operating temperature range make it suitable for industrial environments.
- Consumer electronics: It can be used in various consumer electronic devices requiring serial-to-parallel data conversion.
Q & A
- What is the primary function of the HEF4894BTT-Q100118?
The primary function is to act as a 12-stage serial shift-and-store register LED driver, converting serial data to parallel output for driving LEDs.
- What is the operating voltage range of the HEF4894BTT-Q100118?
The device operates over a supply voltage range of 3 V to 15 V.
- What are the temperature specifications for the HEF4894BTT-Q100118?
It is specified to operate from -40 °C to +85 °C and from -40 °C to +125 °C.
- How does the device handle cascading?
The device has two serial outputs (QS1 and QS2) for cascading multiple HEF4894BTT-Q100118 devices, accommodating both fast and slow clock rise times.
- What kind of ESD protection does the HEF4894BTT-Q100118 offer?
The device offers ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- Is the HEF4894BTT-Q100118 suitable for automotive applications?
Yes, it is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making it suitable for automotive use.
- What is the package type of the HEF4894BTT-Q100118?
The device is packaged in a SOT163-1 (SO20) package.
- How does the device transfer data from the shift register to the storage register?
Data is transferred from the shift register to the storage register when the strobe (STR) input is HIGH.
- What are the key benefits of using the HEF4894BTT-Q100118?
The key benefits include low power dissipation, high noise immunity, fully static operation, and standardized symmetrical output characteristics.
- Can the HEF4894BTT-Q100118 be used in industrial control systems?
Yes, its robustness and wide operating temperature range make it suitable for industrial environments.
- How do I ensure proper operation of unused inputs on the HEF4894BTT-Q100118?
Unused inputs must be connected to VDD, VSS, or another input to ensure proper operation.
