Overview
The CD4511BPWR is a BCD-to-7 segment latch/decoder/driver produced by Texas Instruments. It is designed to convert binary-coded decimal (BCD) input into a 7-segment display output, making it ideal for driving common-cathode LED displays. This product is widely used in digital display applications, offering a simple and efficient solution for numeric display control. Its market positioning targets designers and engineers working on digital display systems, such as counters, clocks, and instrumentation panels. The CD4511BPWR stands out for its integrated latch functionality, which allows for stable display outputs even when the input changes, enhancing user experience and system reliability.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 3 to 18 | V | Wide operating range |
| Output Current | 25 | mA | Max per segment |
| Power Dissipation | 500 | mW | Max |
| Operating Temperature | -55 to 125 | °C | Wide temperature range |
| Package Type | TSSOP-16 | - | Surface mount |
| Logic Type | BCD-to-7 Segment | - | Latch/decoder/driver |
| Propagation Delay | 400 | ns | Typical |
Key Features
- Integrated Latch Functionality: Ensures stable display outputs even during input changes.
- Wide Operating Voltage Range: Supports 3V to 18V, making it versatile for various applications.
- High Output Current: Capable of driving up to 25mA per segment, suitable for bright LED displays.
- Compact Package: Available in a TSSOP-16 package, ideal for space-constrained designs.
- Low Power Consumption: Efficient design minimizes power dissipation.
Applications
The CD4511BPWR is widely used in applications requiring numeric display control. Its primary use cases include:
- Digital Clocks and Timers: Provides precise and stable display outputs for timekeeping devices.
- Counters and Scoreboards: Efficiently drives 7-segment displays in counting applications.
- Instrumentation Panels: Used in industrial and automotive dashboards for clear numeric readouts.
- Consumer Electronics: Found in appliances and gadgets requiring numeric displays.
Q & A
1. What is the purpose of the latch in the CD4511BPWR?
The latch ensures that the display output remains stable even when the input changes, preventing flickering or incorrect displays.
2. What is the maximum supply voltage for the CD4511BPWR?
The maximum supply voltage is 18V.
3. Can the CD4511BPWR drive common-anode displays?
No, it is designed specifically for common-cathode displays.
4. What is the typical propagation delay of the CD4511BPWR?
The typical propagation delay is 400ns.
5. Is the CD4511BPWR suitable for high-temperature environments?
Yes, it operates reliably in temperatures ranging from -55°C to 125°C.
6. What package type does the CD4511BPWR use?
It is available in a TSSOP-16 package.
7. How much current can each segment output handle?
Each segment can handle up to 25mA.
8. Can the CD4511BPWR be used in battery-powered devices?
Yes, its wide operating voltage range and low power consumption make it suitable for battery-powered applications.
9. Does the CD4511BPWR include built-in display decoding?
Yes, it includes a BCD-to-7 segment decoder.
10. What is the maximum power dissipation of the CD4511BPWR?
The maximum power dissipation is 500mW.
