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Texas Instruments OPA564AIDWDR
- Part No.:
- OPA564AIDWDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 20-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
OPA564AIDWDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 20HSOP
- Quantity:
- Payment:
- Shipping:
Inventory:764
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Product details
Overview
OPA564AIDWDR from Texas Instruments is a high-current, wide-supply power operational amplifier designed for reactive load driving up to 1.5A continuous output current, featuring 17MHz gain-bandwidth product, 40V/µs slew rate, and ±3.5V to ±12V dual-supply operation. It delivers 20VPP swing at full 1.5A load and integrates thermal shutdown, adjustable current limiting, and diagnostic flag outputs for motor driver and valve actuator applications.
For engineers reviewing the OPA564AIDWDR datasheet, OPA564AIDWDR pinout, OPA564AIDWDR application, or OPA564AIDWDR equivalent, key selection criteria include verified 1.5A output capability under 85°C industrial temperature, HSOP-20 PowerPAD™ package thermal performance (qJA = 45.5°C/W for DWD variant), and functional validation of E/S-controlled shutdown with 1ms disable time and 3ms enable time.
Technical Context
The OPA564AIDWDR implements a monolithic bipolar input stage with internal current mirror-based adjustable current limit (0.4–1.5A) set via external RSET on ISET pin, and dual-rail analog/digital supply architecture requiring VDIG ≥ (V−) + 3.0V before analog supplies to prevent latch-up. Its output stage uses thermally enhanced PowerPAD™ packaging with internal V− connection for bottom-side heat sinking.
It features two open-collector diagnostic flags-IFLAG (active-high current limit) and TFLAG (active-high thermal shutdown)-and an Enable/Shutdown (E/S) pin with internal 100kΩ pull-up, enabling high-impedance output state (6GΩ || 120pF) when pulled low. Input common-mode range extends to V−, supporting single-supply operation down to +7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5A continuous - supports direct drive of solenoids, voice coils, and piezo actuators without external boost stages |
| Gain-Bandwidth Product | 17MHz - enables stable closed-loop operation up to ~1.3MHz full-power bandwidth at 10VPP output |
| Slew Rate | 40V/µs - ensures minimal distortion in fast transient response for audio and test equipment amplification |
| Supply Range | ±3.5V to ±12V dual or +7V to +24V single - accommodates industrial 12V/24V rails and legacy ±15V systems |
| Output Swing | 20VPP at 1.5A - delivers usable voltage headroom across reactive loads with <2V saturation drop |
| Thermal Protection | Junction shutdown at +140°C to +157°C with 15–19°C hysteresis - prevents irreversible damage during sustained overload |
| Current Limit Accuracy | ±10% at 1.5A - provides repeatable overcurrent trip point for system-level fault containment |
Pinout & Package
OPA564AIDWDR is housed in HSOP-20 PowerPAD™ package with thermal pad on top side (DWD marking), requiring soldering of the exposed pad to PCB copper for thermal management. Package thermal resistance: qJA = 45.5°C/W (high-K board), qJC = 6.3°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V− (Pins 1,10,11,20) | Negative supply rail & PowerPAD reference | Internally connected to top-side thermal pad; must be tied to system ground or negative rail for safe operation |
| V+ (Pin 19) | Analog signal amplifier supply | Provides bias for input stage and small-signal circuitry; independent from power output stage supplies |
| V+ PWR (Pins 3,4,2) | Positive supply for power output stage | Separate high-current path for output transistors; decoupling required near pins |
| V− PWR (Pins 7,8) | Negative supply for power output stage | Independent return path for output current; minimizes crosstalk between signal and power sections |
| E/S (Pin 17) | Enable/Shutdown control input | Pull low (<0.8V) to disable output; internal 100kΩ pull-up allows floating for always-on operation |
| ISET (Pin 9) | Adjustable current limit programming | Connect resistor to V− to set 0.4–1.5A limit per ILIM ≈ 20000/(5000 + RSET) A |
| IFLAG (Pin 13) | Open-collector current limit indicator | Sinks 10mA when active; requires external pull-up to VDIG for logic-level flag signaling |
| TFLAG (Pin 18) | Open-collector thermal shutdown indicator | Sources 200mA when tripped; signals junction overtemperature condition to host controller |
| VDIG (Pin 14) | Digital supply reference | +3.0V to +5.5V referenced to V−; powers flag drivers and E/S interface; must power up before analog supplies |
| TSENSE (Pin 12) | Diode-connected junction temperature monitor | Enables external temperature sensing using TMP411 or similar IC; ideality factor h = 1.033 |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable current limit | User-programmable 0.4–1.5A via single external resistor on ISET pin, eliminating need for discrete current-sense circuits |
| Dual-rail supply architecture | Independent analog (V+) and power-stage (V+ PWR/V− PWR) supplies reduce noise coupling and improve PSRR in high-current switching environments |
| Diagnostic flag outputs | Two dedicated open-collector flags (IFLAG/TFLAG) provide real-time fault status without requiring ADC polling or software overhead |
| PowerPAD™ thermal package | Top-side thermal pad (DWD) enables direct heatsink mounting or large PCB copper area for >1.5A continuous dissipation at +85°C ambient |
| Input common-mode to rail | Operates with inputs down to V−, enabling true single-supply configurations such as 0–10V actuator control without level-shifting circuitry |
Applications
| Valve & Actuator Driver | VCOM Driver |
|---|---|
Use Scenario: Driving industrial pneumatic/hydraulic valves and linear actuators requiring precise 0–20mA or 0–10V analog control signals with high peak current capability. IC Role / Device Role / Timing Role: High-current op amp configured as precision voltage-to-current converter or buffered voltage driver with integrated current limiting. Use Value: Eliminates external current boost transistors and discrete protection circuitry while maintaining 1.5A surge capability and thermal fault reporting via TFLAG. | Use Scenario: Generating stable common-voltage (VCOM) bias for LCD panel column drivers in industrial displays operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Precision buffer amplifier delivering low-noise, low-drift DC voltage with high capacitive load drive (≥100nF). Use Value: Maintains <0.003% THD+N at 1kHz and 5VP, ensuring grayscale fidelity and minimizing image flicker in high-resolution panels. |
| Motor Control Amplifier | Test Equipment Output Stage |
Use Scenario: Closed-loop torque/speed control of brushed DC motors in embedded motion systems where space-constrained PCBs require integrated power and protection. IC Role / Device Role / Timing Role: Power op amp used in H-bridge half-bridge driver or current-sense feedback loop with programmable current limit for stall protection. Use Value: Enables rapid current limiting (50% overshoot max) and thermal shutdown with 15–19°C hysteresis, preventing MOSFET failure during jam conditions. | Use Scenario: Output amplifier in automated test equipment (ATE) requiring fast settling (<0.8ms to ±0.01%), wide dynamic range, and robust short-circuit tolerance. IC Role / Device Role / Timing Role: Final gain stage delivering calibrated stimulus signals with 17MHz GBW and 40V/µs slew rate for frequency-domain testing. Use Value: Delivers 1.3MHz full-power bandwidth at 10VPP, supporting accurate sine-wave generation up to 1MHz without clipping or phase error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA564AIDWP | Same die, HSOP-20 with bottom-side PowerPAD™ (qJA = 33°C/W); pinout identical except PowerPAD orientation | Better thermal performance on standard PCBs; requires bottom-side heatsinking instead of top-side mounting | Select when PCB layout supports thermal vias to internal ground plane and lower junction-temp margin is critical |
| OPA561IDWPR | 1.2A max output, 17MHz GBW, 50V/µs slew rate, no ISET/TSENSE pins, simpler HSOP-20 footprint | Lacks programmable current limit and temperature monitoring; suited for fixed-gain, lower-current applications | Choose when design does not require adjustable protection or thermal telemetry, reducing BOM count and layout complexity |
Compared with OPA564AIDWDR, the DWP variant offers superior thermal resistance for passive cooling, while the OPA561 provides reduced feature set and lower cost where diagnostics and fine current control are unnecessary.
Availability
OPA564AIDWDR is available at Aetrix Electronics and suitable for valve actuator driver, VCOM bias generator, and motor control amplifier applications requiring stable component supply with guaranteed long-term industrial temperature support (–40°C to +85°C).
Supply support for OPA564AIDWDR 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 leader specializing in analog and embedded processing technologies, with over 90 years of innovation in precision amplifiers and power management ICs.
The OPA564AIDWDR belongs to TI's Power Operational Amplifier product line, engineered for high-reliability industrial powerline communications, motor control, and transducer excitation where robustness, thermal intelligence, and programmable protection are essential.
FAQ
What is the maximum continuous output current specification for the OPA564AIDWDR?
The OPA564AIDWDR is rated for 1.5A continuous output current under specified thermal conditions (TA ≤ +85°C, proper PCB thermal design). This value is validated across the industrial temperature range and reflects actual dc current delivery into resistive or reactive loads without thermal shutdown activation.
How does the E/S pin function on the OPA564AIDWDR, and what are its timing characteristics?
The E/S pin on the OPA564AIDWDR controls output stage enable/disable: pulling it below 0.8V shuts down the output (high-impedance state), while ≥2V above V− enables normal operation. The OPA564AIDWDR exhibits 1ms shutdown time and 3ms enable time, with internal 100kΩ pull-up allowing floating for default-enable configuration.
Can the OPA564AIDWDR operate from a single +24V supply, and what are the input common-mode limitations?
Yes, the OPA564AIDWDR supports single-supply operation from +7V to +24V. Its input common-mode voltage range extends from V− to (V+) − 3V, meaning at +24V supply it accepts inputs from 0V to +21V - enabling direct interfacing with microcontroller DACs or sensor outputs without level-shifting circuitry.
What is the purpose of the TSENSE pin on the OPA564AIDWDR, and how is it used?
On the OPA564AIDWDR, the TSENSE pin provides a diode-connected transistor junction for remote temperature monitoring. With ideality factor h = 1.033, it interfaces directly with digital temperature sensors like the TMP411 to measure die temperature, enabling predictive thermal management and system-level derating strategies.
How is current limiting configured on the OPA564AIDWDR, and what accuracy can be expected at 1.5A?
Current limiting on the OPA564AIDWDR is set by connecting an external resistor (RSET) between ISET (Pin 9) and V−, using the equation ILIM ≈ 20000/(5000 + RSET) A. At 1.5A, the OPA564AIDWDR achieves ±10% accuracy over temperature, with primary error sources being RSET tolerance and junction temperature drift.
OPA564AIDWDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 40V/µs
- Gain Bandwidth Product:
- 17 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 39mA
- Current - Output / Channel:
- 1.5 A
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HSOP
OPA564AIDWDR FAQ
1.How can I place an order for OPA564AIDWDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA564AIDWDR 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 OPA564AIDWDR reliable?
The price and inventory of OPA564AIDWDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA564AIDWDR is usually 5 days.
3.What payment methods are accepted for OPA564AIDWDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA564AIDWDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA564AIDWDR?
OPA564AIDWDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA564AIDWDR 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 OPA564AIDWDR?
For technical support, including OPA564AIDWDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA564AIDWDR requirements.
6.How does Aetrix verify that OPA564AIDWDR is sourced from the original manufacturer or authorized distributors?
All OPA564AIDWDR 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 OPA564AIDWDR meets industry standards.
7.What is the process for return or replacement of OPA564AIDWDR?
All OPA564AIDWDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA564AIDWDR, 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 OPA564AIDWDR part is unused and in its original packaging.
Return procedure for OPA564AIDWDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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