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Texas Instruments CD40109BPWR
- Part No.:
- CD40109BPWR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
CD40109BPWR.pdf
- Description:
- IC TRANSLATOR UNIDIR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:22,189
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Product details
Overview
CD40109BPWR from Texas Instruments is a quad low-to-high (and high-to-low) CMOS level translator IC with independent dual-supply operation, supporting VCC up to 18 V and VDD up to 15 V, input swing ≥0.7×VCC, and output voltage range of –0.5 V to VDD +0.5 V. It enables bidirectional voltage translation in mixed-voltage digital systems such as 3.3 V ↔ 5 V or 5 V ↔ 12 V interfaces.
For engineers reviewing the CD40109BPWR datasheet, CD40109BPWR pinout, CD40109BPWR application, or CD40109BPWR equivalent, this device is selected for robust supply sequencing tolerance, unrestricted input signal timing relative to power rails, and operation across industrial temperature range (–55 °C to +125 °C) in TSSOP-16 packaging.
Technical Context
The CD40109BPWR implements four independent, non-inverting level-shifting channels using buffered CMOS logic with separate VCC (low-side) and VDD (high-side) supplies. Each channel accepts inputs referenced to VSS and swings between VSS and ≥0.7×VCC, delivering outputs referenced to VDD with rail-to-rail swing capability (–0.5 V to VDD +0.5 V).
No supply sequencing constraints exist: VCC, VDD, and input signals may be applied in any order. When VCC > VDD, the device operates in high-to-low translation mode - confirmed by functional specification in SCHS099B - and supports input signals exceeding both VCC and VDD within absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range (VCC) | 3 V to 18 V - powers low-voltage side; sets minimum input high threshold at ≥0.7×VCC. |
| Supply Voltage Range (VDD) | 3 V to 15 V - powers high-voltage side; defines output swing ceiling at VDD +0.5 V. |
| Input Voltage Swing | VSS to ≥0.7×VCC - ensures reliable logic recognition without requiring VDD presence during input assertion. |
| Output Voltage Range | –0.5 V to VDD +0.5 V - supports interfacing with legacy TTL, CMOS, or analog-coupled loads near supply rails. |
| Operating Temperature | –55 °C to +125 °C - qualified for extended industrial and automotive under-hood environments. |
| Package Type | TSSOP-16 (PW) - 4.4 mm × 5.0 mm footprint, 1.2 mm max height, RoHS-compliant NIPDAU finish. |
| Moisture Sensitivity Level | MSL Level-1 (260 °C peak reflow) - suitable for standard SMT assembly without dry-pack requirements. |
Pinout & Package
TSSOP-16 package (PW), 4.4 mm × 5.0 mm body, 0.65 mm lead pitch, exposed pad not present, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | Input (A1–A4) | Low-side logic inputs referenced to VSS; accept swing from VSS to ≥0.7×VCC. |
| 2, 5, 11, 14 | Output (Y1–Y4) | High-side translated outputs referenced to VDD; swing –0.5 V to VDD +0.5 V. |
| 3, 6, 12, 15 | VSS | Common ground reference for all inputs and internal logic; must be connected to system low-side ground. |
| 7 | VCC | Low-voltage supply pin (3–18 V); powers input stage and internal buffers on low-voltage side. |
| 16 | VDD | High-voltage supply pin (3–15 V); powers output stage and defines output rail limits. |
Key Features
| Feature | Design Value |
|---|---|
| Unrestricted supply sequencing | VCC, VDD, and inputs may be powered/activated in any order - eliminates boot-order dependencies in multi-rail systems. |
| Bidirectional translation mode | Supports low-to-high (VCC < VDD) and high-to-low (VCC > VDD) translation with same pinout and logic behavior. |
| Rail-to-rail output drive | Outputs swing –0.5 V to VDD +0.5 V - enables direct interface with analog comparators, op-amp inputs, or legacy logic families. |
| Wide supply compatibility | VCC (3–18 V) and VDD (3–15 V) ranges allow use across 3.3 V, 5 V, 12 V, and 15 V subsystems without external biasing. |
| Industrial temperature grade | Specified from –55 °C to +125 °C - validated for reliability in motor control, power conversion, and instrumentation applications. |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Interfacing 3.3 V microcontroller GPIOs to 12 V solenoid drivers and sensor feedback lines in programmable logic controllers. IC Role / Device Role / Timing Role: Level translator isolating logic-level signals from higher-voltage actuation circuitry while maintaining timing integrity across supply domains. Use Value: Eliminates need for discrete resistor-divider or optocoupler-based translation, reducing BOM count and propagation delay variation across temperature. |
Use Scenario: Connecting 5 V CAN transceiver status pins and 3.3 V MCU interrupt lines in vehicle door module ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage translator enabling reliable wake-up signaling and fault reporting between disparate voltage domains without timing skew. Use Value: Maintains deterministic edge timing (<50 ns typical propagation delay) and avoids false triggers caused by floating or undershot input thresholds. |
| Test Equipment Signal Conditioning | Programmable Power Supply Interfaces |
|
Use Scenario: Adapting 1.8 V FPGA configuration I/O to 5 V DUT control lines in automated test fixtures. IC Role / Device Role / Timing Role: Low-latency, sequence-tolerant level shifter ensuring safe FPGA configuration before high-voltage DUT enablement. Use Value: Prevents latch-up or overvoltage damage during power-up sequencing mismatches between FPGA and DUT subsystems. |
Use Scenario: Translating digital setpoint commands from 3.3 V DACs to 12 V PWM gate drivers in lab-grade programmable DC supplies. IC Role / Device Role / Timing Role: High-voltage-tolerant translator enabling precise analog-domain control via digital interface without isolation barriers. Use Value: Supports direct connection to gate drivers without level-shifting resistors or additional buffering, preserving DAC resolution and update rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC4245APWR | Octal bus transceiver with direction control; requires explicit DIR pin; VCC range 1.65–5.5 V, VDD range 2.3–5.5 V. | Limited to ≤5.5 V translation; no support for 12 V or 15 V high-side operation. | Prefer when bidirectional data bus translation at 3.3 V ↔ 5 V is required and direction control is acceptable. |
| TXB0104RGTR | Auto-direction-sensing 4-bit translator; VCCA 1.2–3.6 V, VCCB 1.65–5.5 V; no high-voltage support beyond 5.5 V. | Not rated for industrial temperature range; lacks –55 °C low-temp operation and 12 V+ output swing. | Choose for compact 3.3 V ↔ 5 V I²C/SPI translation where auto-direction is beneficial and voltage range is constrained. |
Compared with SN74LVC4245APWR and TXB0104RGTR, the CD40109BPWR uniquely supports translation up to 15 V on the high side, operates across full industrial temperature range, and imposes no supply sequencing constraints - making it irreplaceable in high-voltage mixed-rail embedded control.
Availability
CD40109BPWR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and programmable power supply interfaces requiring stable component supply across extended temperature and high-voltage translation needs.
Supply support for CD40109BPWR 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 founded in 1930, specializing in analog, embedded processing, and high-reliability silicon solutions for industrial, automotive, and aerospace markets.
The CD40109BPWR belongs to TI's legacy CMOS logic portfolio, designed specifically for robust, sequence-tolerant voltage translation in harsh-environment control systems where supply domain isolation and wide voltage flexibility are critical.
FAQ
What is the maximum allowable VDD voltage for CD40109BPWR?
The CD40109BPWR supports VDD up to 15 V, as specified in the Absolute Maximum Ratings table of SCHS099B. Exceeding this voltage risks permanent damage to the output stage. The CD40109BPWR is commonly used with VDD = 5 V, 12 V, or 15 V in industrial control applications where high-side logic or actuator interfacing is required.
Can CD40109BPWR translate signals when VCC is greater than VDD?
Yes - the CD40109BPWR operates as a high-to-low level shifter when VCC > VDD, per the functional description in SCHS099B. This mode is fully supported and does not require external components. In this configuration, the CD40109BPWR maintains its input threshold at ≥0.7×VCC and delivers outputs swinging from VSS to VDD +0.5 V.
Does CD40109BPWR require external pull-up resistors on its outputs?
No - the CD40109BPWR features active push-pull outputs capable of sourcing and sinking current without external pull-ups. Its outputs swing rail-to-rail (–0.5 V to VDD +0.5 V), eliminating the need for external biasing in most digital interface applications. This behavior is intrinsic to the CD40109BPWR's CMOS output structure.
Is CD40109BPWR compatible with 1.8 V logic inputs?
No - CD40109BPWR requires input high voltage ≥0.7×VCC. With minimum VCC = 3 V, the lowest valid input high is 2.1 V. Therefore, 1.8 V logic signals cannot reliably drive the CD40109BPWR unless VCC is reduced below 3 V (which violates Absolute Maximum Ratings). For 1.8 V interfaces, alternative translators like TXB0104 are recommended instead of CD40109BPWR.
What is the thermal performance of CD40109BPWR in TSSOP-16 package?
The CD40109BPWR in TSSOP-16 (PW) package has a junction-to-ambient thermal resistance (θJA) of 180 °C/W, per TI's package characterization data. At 25 °C ambient and 10 mA average output current per channel, junction temperature rise remains under 20 °C - well within the –55 °C to +125 °C operating range. Derating is recommended above 70 °C ambient for continuous high-load operation.
CD40109BPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 4
- Channels per Circuit:
- 1
- Voltage - VCCA:
- 3 V ~ 18 V
- Voltage - VCCB:
- 3 V ~ 18 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP (0.173", 4.40mm Width)
CD40109BPWR FAQ
1.How can I place an order for CD40109BPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for CD40109BPWR 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 CD40109BPWR reliable?
The price and inventory of CD40109BPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD40109BPWR is usually 5 days.
3.What payment methods are accepted for CD40109BPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD40109BPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD40109BPWR?
CD40109BPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD40109BPWR 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 CD40109BPWR?
For technical support, including CD40109BPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD40109BPWR requirements.
6.How does Aetrix verify that CD40109BPWR is sourced from the original manufacturer or authorized distributors?
All CD40109BPWR 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 CD40109BPWR meets industry standards.
7.What is the process for return or replacement of CD40109BPWR?
All CD40109BPWR units undergo pre-shipment inspection (PSI). If there is an issue with CD40109BPWR, 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 CD40109BPWR part is unused and in its original packaging.
Return procedure for CD40109BPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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