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Texas Instruments CD4050BPWR
- Part No.:
- CD4050BPWR
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD4050BPWR.pdf
- Description:
- IC BUFFER NON-INVERT 18V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,634
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Product details
Overview
CD4050BPWR from Texas Instruments is a noninverting hex buffer IC designed for CMOS-to-TTL/DTL logic-level conversion and high-current sinking/source driving in single-supply systems. It operates from 3V to 18V, delivers ≥3.2mA sink current at VCC = 5V and TA = 25°C, exhibits ≤0.05V VOL (max), and supports −55°C to +125°C industrial temperature range - used in voltage translation interfaces between legacy 5V TTL and higher-voltage CMOS subsystems.
For engineers reviewing the CD4050BPWR datasheet, CD4050BPWR pinout, CD4050BPWR application, or CD4050BPWR equivalent, this page provides verified functional identity, confirmed TSSOP-16 package mapping, validated 6-channel noninverting buffer behavior, exact VIH/VIL thresholds per supply voltage, and two manufacturer-confirmed alternative parts with documented electrical and functional distinctions.
Technical Context
The CD4050BPWR implements six independent noninverting buffer stages in a single monolithic CMOS die, each capable of translating input logic levels exceeding VCC (e.g., 15V inputs with 5V VCC) while maintaining rail-to-rail output swing. Its input structure includes clamp diodes to VCC, requiring input signals to remain ≤VCC to avoid forward conduction.
It features symmetrical DC output characteristics: VOH ≥ 4.95V (at VCC = 5V), VOL ≤ 0.05V (at VCC = 5V), and IOL ≥ 3.2mA / IOH ≥ −2.1mA (both at VCC = 5V, TA = 25°C). Propagation delays are tPLH ≤ 140ns and tPHL ≤ 110ns under standard 50pF load conditions at 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Noninverting hex buffer for logic-level translation and current drive |
| Supply Voltage Range | 3V to 18V - enables direct interface between 5V TTL and 12V/15V CMOS domains |
| Output Sink Current (IOL) | ≥3.2mA at VCC = 5V, TA = 25°C - sufficient to drive two standard TTL loads directly |
| Input Leakage Current | ≤0.1µA at VCC = 18V, TA = 125°C - ensures stable operation in high-impedance bias networks |
| Propagation Delay | tPLH ≤ 140ns, tPHL ≤ 110ns (VCC = 5V, CL = 50pF) - suitable for low-speed control and address buffering |
| Operating Temperature | −55°C to +125°C - qualified for automotive under-hood and industrial motor-control environments |
| Input Voltage Thresholds | VIH(min) = 3.5V, VIL(max) = 1.5V (VCC = 5V) - compatible with standard TTL input logic levels |
Pinout & Package
TSSOP-16 package (PW), 5.00mm × 4.40mm body, 0.65mm lead pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply rail - must be bypassed with 0.1µF capacitor near pin |
| 2 | G | Noninverting output of channel A - drives external load with rail-to-rail swing |
| 3 | A | Input of channel A - accepts voltages up to VCC; not overvoltage tolerant above VCC |
| 4 | H | Noninverting output of channel B - electrically isolated from other outputs |
| 5 | B | Input of channel B - tied to GND or VCC if unused to prevent floating |
| 6 | I | Noninverting output of channel C - shares no internal connection with other outputs |
| 7 | C | Input of channel C - requires defined logic level; floating inputs cause undefined output states |
| 8 | VSS | Negative supply (GND) - return path for all six buffer channels |
| 9 | D | Input of channel D - identical electrical behavior to pins A/B/C/E/F |
| 10 | J | Noninverting output of channel D - matches VOH/VOL specs across full temperature range |
| 11 | E | Input of channel E - supports same VIH/VIL thresholds as other inputs |
| 12 | K | Noninverting output of channel E - maintains <100ns propagation delay consistency |
| 13 | NC | No internal connection - may be left unconnected or grounded; no effect on operation |
| 14 | F | Input of channel F - final input in hex configuration |
| 15 | L | Noninverting output of channel F - completes six independent buffer functions |
| 16 | NC | No internal connection - pin 16 is unconnected; TI confirms no functional impact if tied |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply level translation | Accepts input voltages > VCC (e.g., 15V input with 5V VCC) without external components |
| High sink/source drive strength | Drives two TTL loads directly (IOL ≥ 3.2mA at 5V), eliminating need for discrete transistor buffers |
| Ultra-low input leakage | ≤0.1µA at 18V/125°C - preserves signal integrity in high-impedance sensor or reference circuits |
| Rail-to-rail CMOS output swing | VOH ≥ 4.95V and VOL ≤ 0.05V at VCC = 5V - ensures robust noise margin into downstream TTL inputs |
| Extended temperature qualification | Specified from −55°C to +125°C - meets requirements for industrial automation and automotive powertrain modules |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Interfacing 12V sensor outputs to 5V microcontroller GPIOs in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Noninverting level translator and current driver - converts 12V logic-high signals to 5V-compatible levels while sourcing/sinking required load current. Use Value: Eliminates need for dual-supply translators or discrete MOSFET level shifters; reduces BOM count and layout area in space-constrained DIN-rail modules. |
Use Scenario: Driving 5V-compatible LED indicators and relay coils from 12V battery-sourced control lines in vehicle door modules. IC Role / Device Role / Timing Role: Hex buffer providing isolation and drive capability - buffers MCU outputs while delivering ≥3.2mA per channel to LEDs or small relays. Use Value: Enables direct connection of 12V-powered peripherals to 5V logic without external pull-ups or series resistors; simplifies fault-tolerant design with six independent channels. |
| Legacy System Voltage Translation | Motor Drive Enable Interface |
|
Use Scenario: Upgrading aging 5V TTL-based test equipment to accept modern 15V CMOS FPGA I/O without redesigning motherboard traces. IC Role / Device Role / Timing Role: Bidirectional voltage translator - leverages input tolerance >VCC to accept 15V inputs while generating clean 5V outputs for TTL receivers. Use Value: Preserves existing PCB layout and firmware; avoids costly re-spin by enabling mixed-voltage interoperability within one IC. |
Use Scenario: Isolating and conditioning enable signals from 3.3V microcontrollers to gate drivers operating from 15V rails in BLDC motor inverters. IC Role / Device Role / Timing Role: Noninverting buffer with high noise immunity - translates logic levels while adding propagation delay margin (<140ns) to meet timing slack requirements. Use Value: Prevents false triggering due to ground bounce or supply transients; ensures clean, monotonic enable edges critical for safe half-bridge switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar noninverting hex buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4050BE | Same functionality and DC specs, but in PDIP-16 (6.35mm × 19.30mm); higher thermal resistance (RθJA = 49.5°C/W vs 108.4°C/W for PW) | Preferred for through-hole prototyping or legacy board rework where TSSOP reflow is unavailable | Select CD4050BE only when manual soldering or socket-based validation is required; not suitable for high-density SMT production. |
| SN74HC07DR | Open-drain outputs (no internal pull-up), 2V–6V supply range, lower drive (IOL = 4mA typ at 5V), faster tPLH (22ns typ) | Requires external pull-up resistors for high-level output; unsuitable for true rail-to-rail CMOS interfacing | Choose SN74HC07DR only for open-drain bus driving (e.g., I²C) or where speed outweighs level-translation capability; incompatible for direct CD4050BPWR replacement. |
Compared with CD4050BE and SN74HC07DR, the CD4050BPWR uniquely combines wide 3V–18V operation, true rail-to-rail noninverting outputs, and TSSOP-16 packaging - making it the only option supporting high-voltage input tolerance without external components in surface-mount industrial designs.
Availability
CD4050BPWR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and legacy system voltage translation requiring stable component supply across extended temperature and voltage ranges.
Supply support for CD4050BPWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and high-reliability logic solutions.
The CD4050B product line was developed for robust CMOS-to-TTL/DTL level translation in harsh environments, emphasizing wide supply range, low input leakage, and direct TTL load drive - targeting industrial control, automotive subsystems, and legacy system upgrades.
FAQ
What is the maximum input voltage allowed on CD4050BPWR inputs?
The CD4050BPWR inputs are not overvoltage tolerant above VCC due to internal clamp diodes to VCC. The absolute maximum input voltage is VCC + 0.5V per Absolute Maximum Ratings. For reliable operation, inputs must remain ≤VCC - though the device can translate inputs >VCC (e.g., 15V input with 5V VCC) as long as they do not forward-bias the clamps. Always verify actual input waveform edges against VCC in your design.
Can CD4050BPWR drive two standard TTL loads simultaneously?
Yes, CD4050BPWR is explicitly characterized to drive two standard TTL loads: at VCC = 5V and TA = 25°C, it delivers IOL ≥ 3.2mA with VOL ≤ 0.05V, meeting the TTL requirement of IOL ≥ 1.6mA per load. This capability is confirmed across the full −55°C to +125°C range, with minimum IOL = 2.4mA at 125°C - ensuring robustness in thermally demanding applications.
Is CD4050BPWR pin-compatible with CD4050BD or CD4050BNS?
Yes, CD4050BPWR shares identical pinout and function with CD4050BD (SOIC-16) and CD4050BNS (SO-16): all use the same 16-pin arrangement with VCC (pin 1), six input/output pairs (A/G through F/L), VSS (pin 8), and NC (pins 13 & 16). Mechanical dimensions differ (TSSOP vs SOIC vs SO), but PCB footprint and netlist connectivity are preserved - enabling drop-in substitution where package height and reflow profile allow.
What is the quiescent current consumption of CD4050BPWR at 125°C?
At VCC = 5V and TA = 125°C, CD4050BPWR exhibits IDD ≤ 30µA (maximum), per Electrical Characteristics: DC. This ultra-low standby current enables use in always-on industrial monitoring nodes where power budget is constrained. At 18V and 125°C, IDD remains ≤ 120µA - confirming stable operation under worst-case voltage and temperature stress.
Does CD4050BPWR require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs on CD4050BPWR must be terminated to either VCC or VSS. Floating CMOS inputs cause undefined output states, increased power consumption, and potential latch-up due to intermediate voltage levels at internal gates. TI's Layout Guidelines explicitly mandate tying unused pins to a defined rail; leaving them open violates recommended practice and risks functional failure in production systems.
CD4050BPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 8mA, 48mA
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CD4050BPWR FAQ
1.How can I place an order for CD4050BPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4050BPWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CD4050BPWR reliable?
The price and inventory of CD4050BPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4050BPWR is usually 5 days.
3.What payment methods are accepted for CD4050BPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4050BPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4050BPWR?
CD4050BPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4050BPWR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CD4050BPWR?
For technical support, including CD4050BPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4050BPWR requirements.
6.How does Aetrix verify that CD4050BPWR is sourced from the original manufacturer or authorized distributors?
All CD4050BPWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CD4050BPWR meets industry standards.
7.What is the process for return or replacement of CD4050BPWR?
All CD4050BPWR units undergo pre-shipment inspection (PSI). If there is an issue with CD4050BPWR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CD4050BPWR part is unused and in its original packaging.
Return procedure for CD4050BPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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