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Texas Instruments OPA564AIDWP
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- Part No.:
- OPA564AIDWP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 20-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
OPA564AIDWP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 20HSOIC
- Quantity:
- Payment:
- Shipping:
Inventory:170
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Product details
Overview
OPA564AIDWP from Texas Instruments is a high-current, wide-supply power operational amplifier designed for reactive load driving up to 1.5A continuous output. It delivers 20VPP swing at full 1.5A into 20Ω loads with 17MHz gain-bandwidth product, 40V/µs slew rate, and integrated thermal shutdown and adjustable current limiting - used in valve actuators, VCOM drivers, and motor control stages.
For engineers reviewing the OPA564AIDWP datasheet, OPA564AIDWP pinout, OPA564AIDWP application, or OPA564AIDWP equivalent, key selection considerations include its HSOP-20 PowerPAD™ package (bottom-side thermal pad), ±3.5V to ±12V dual-supply or +7V to +24V single-supply operation, diagnostic flag outputs (TFLAG/IFLAG), and user-configurable current limit via external RSET resistor.
Technical Context
The OPA564AIDWP integrates a high-speed op amp core with a robust output stage capable of sourcing/sinking 1.5A while maintaining linearity across 1.3MHz full-power bandwidth at 10VPP. Its architecture includes separate analog and digital supply domains (VDIG referenced to V–), enabling independent sequencing and noise isolation.
Internal protection comprises adjustable current limiting (0.4A–2.0A range via ISET pin), thermal shutdown with hysteresis (140°C–157°C trip, 15°C–19°C hysteresis), and dual diagnostic flags (TFLAG and IFLAG) that actively drive high during fault conditions - all implemented without external components beyond RSET and bypass capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5A continuous - enables direct drive of solenoids, voice coils, and piezoelectric actuators without external boost stages |
| Supply Range | +7V to +24V single or ±3.5V to ±12V dual - supports industrial 24V rail and split-rail test equipment |
| Gain-Bandwidth | 17MHz - ensures stable closed-loop response up to ~1.3MHz at full 10VPP output swing |
| Slew Rate | 40V/µs - maintains fidelity on fast transient loads like PWM-driven valves |
| Output Swing | 20VPP at 1.5A - delivers usable voltage headroom even under heavy load at 24V supply |
| Current Limit Range | ±0.4A to ±2.0A - set precisely via external RSET (7.5kΩ → ~1.5A) with 10% accuracy |
| Thermal Shutdown | 140°C–157°C trip with 15°C–19°C hysteresis - prevents latch-up during sustained overload |
Pinout & Package
OPA564AIDWP uses the HSOP-20 PowerPAD™ package with thermal pad on the bottom side (DWP suffix), requiring soldering to PCB copper for thermal management. Thermal resistance is qJA = 33°C/W (high-K board) and qJP = 1.83°C/W (junction-to-pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– (Pins 1,10,11,20) | Negative supply & PowerPAD reference | Internally connected to bottom thermal pad; must be soldered to ground plane for thermal conduction |
| V+ (Pin 2) | Analog signal amplifier supply | Supplies op amp core only; decoupling required near pin |
| TFLAG (Pin 3) | Thermal shutdown flag output | Active-high open-drain output; sinks 200mA when junction exceeds 140°C |
| E/S (Pin 4) | Enable/Shutdown control input | Logic-compatible input; <0.8V disables output (6GΩ||120pF high-Z state) |
| +IN (Pin 5) | Noninverting input | High-impedance (10¹²Ω||9pF); common-mode range extends to V– |
| –IN (Pin 6) | Inverting input | Matches +IN; differential input voltage limited to ±0.5V |
| VDIG (Pin 7) | Digital supply input | +3.3V to +5.5V referenced to V–; powers E/S, TFLAG, IFLAG logic |
| IFLAG (Pin 8) | Current limit flag output | Active-high open-drain; sources 20mA when output current exceeds programmed ILIM |
| ISET (Pin 9) | Current limit programming input | Connects to V– via RSET (7.5kΩ typical); sets ILIM per ILIM ≈ 20000/(5000 + RSET) A |
| TSENSE (Pin 12) | Temperature sense output | Diode-connected NPN emitter; used with TMP411 for remote junction temperature monitoring |
| V– PWR (Pins 13,14) | Negative supply for power output stage | Separate from signal V–; handles high-current return path independently |
| VOUT (Pins 15,16) | Main power output terminals | Parallel pins reduce trace inductance; output impedance 10Ω at 100kHz (closed-loop) |
| V+ PWR (Pins 17,18,19) | Positive supply for power output stage | Three parallel pins minimize IR drop under 1.5A load; requires local bulk + ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable current limit | 0.4A–2.0A range set by single external resistor (RSET), eliminating need for current-sense amplifiers or discrete protection |
| Diagnostic flag outputs | Dual active-high open-drain flags (TFLAG, IFLAG) provide real-time fault status to microcontrollers without polling |
| Enable/Shutdown control | Logic-compatible E/S pin with internal 100kΩ pull-up enables instant output disable (<1ms shutdown time) and safe system-level power sequencing |
| Wide supply flexibility | Single +7V–+24V or dual ±3.5V–±12V operation with VDIG domain separation allows mixed-voltage system integration |
| Thermally enhanced package | HSOP-20 DWP with bottom-side PowerPAD™ achieves 1.83°C/W junction-to-pad resistance - critical for 1.5A continuous dissipation |
Applications
| Valve & Actuator Driver | VCOM Driver |
|---|---|
Use Scenario: Driving resistive-inductive proportional valves in industrial automation with PWM or analog command signals. IC Role / Device Role / Timing Role: High-current buffer amplifier delivering precise 0–20V, 1.5A output with fast settling (0.6ms to ±0.1%) and low THD+N (0.003% at 1kHz). Use Value: Eliminates need for discrete MOSFET stages while maintaining linearity and thermal safety under cyclic load stress. |
Use Scenario: Generating precise, low-noise common electrode voltage for LCD panels in medical imaging and test equipment. IC Role / Device Role / Timing Role: Low-offset (±2mV), low-noise (102.8nV/√Hz at 1kHz) power op amp with rail-to-rail output swing capability. Use Value: Reduces panel flicker and image artifacts by minimizing VCOM drift and harmonic distortion across temperature. |
| Motor Control Stage | Powerline Communications Amplifier |
Use Scenario: Closed-loop current control for small DC brush motors in robotics and precision positioning systems. IC Role / Device Role / Timing Role: Current-sensing feedback amplifier with programmable ILIM and fast enable/disable for dynamic torque limiting. Use Value: Enables hardware-level overcurrent cutoff (<1ms response) independent of MCU firmware, improving system reliability. |
Use Scenario: Transmitting high-fidelity carrier signals onto AC mains wiring in smart grid and home automation nodes. IC Role / Device Role / Timing Role: Wideband (17MHz GBW), high-slew-rate (40V/µs) driver capable of 1.3MHz full-power modulation at 20VPP into 50Ω line impedance. Use Value: Supports higher data rates and improved SNR in PLC PHY layers without external power boosting stages. |
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 |
|---|---|---|---|
| OPA561IDWP | 1.2A max output, 50V/µs slew rate, same HSOP-20 DWP package and pinout | Limited to lower-current actuators and smaller VCOM loads; lacks TSENSE pin | Select when 1.2A suffices and higher slew rate is prioritized over absolute current capacity |
| LM675T/NOPB | 3A output but no integrated current limiting, thermal flag, or E/S control; TO-220 package | Requires external protection circuitry and heatsink mounting; unsuitable for space-constrained PCBs | Choose for legacy designs needing higher peak current where thermal management is handled externally |
Compared with OPA564AIDWP, OPA561IDWP trades 0.3A output and missing diagnostics for faster transient response, while LM675T/NOPB offers higher current at the cost of design complexity, larger footprint, and no built-in fault signaling.
Availability
OPA564AIDWP is available at Aetrix Electronics and suitable for valve actuation, VCOM biasing, and motor control applications requiring stable component supply, long-term industrial temperature support (–40°C to +85°C), and guaranteed thermal performance in HSOP-20 PowerPAD™ packaging.
Supply support for OPA564AIDWP 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 decades of expertise in high-reliability power management and precision signal chain solutions.
The OPA564AIDWP belongs to TI's Power Operational Amplifier product line, engineered specifically for demanding industrial and test equipment applications requiring high output current, integrated protection, and diagnostic visibility in compact surface-mount packages.
FAQ
What is the maximum continuous output current of the OPA564AIDWP?
The OPA564AIDWP delivers 1.5A continuous output current under safe operating area (SOA) conditions with proper thermal management. This rating assumes operation within the specified temperature range (–40°C to +85°C ambient) and adequate PCB copper area for the bottom-side PowerPAD™. The device also supports programmable current limiting between ±0.4A and ±2.0A via the ISET pin and external RSET resistor.
How does the OPA564AIDWP handle thermal protection?
The OPA564AIDWP features integrated thermal shutdown with a trip point between +140°C and +157°C and 15°C–19°C hysteresis. When triggered, it asserts the TFLAG pin high and disables the output stage. The TSENSE pin provides a diode-connected NPN emitter for remote junction temperature monitoring using external ICs like the TMP411, enabling predictive thermal management beyond simple shutdown.
Can the OPA564AIDWP operate from a single supply?
Yes, the OPA564AIDWP operates from a single supply ranging from +7V to +24V. Its input common-mode range extends to the negative rail (V–), and the output swing reaches within 1.5V of V+ at 1.5A load. For optimal performance, the digital supply VDIG must be applied before analog supplies, and VDIG must remain within (V–)+3.0V to (V–)+5.5V regardless of analog rail configuration.
What is the purpose of the ISET pin on the OPA564AIDWP?
The ISET pin on the OPA564AIDWP programs the output current limit by sinking a precision current derived from an internal bandgap reference. Connecting an external resistor RSET between ISET and V– sets ILIM according to ILIM ≈ 20000/(5000 + RSET) A. With RSET = 7.5kΩ, the OPA564AIDWP limits to ~1.5A with ±10% accuracy - providing coarse but reliable hardware-level overcurrent protection without external sensing components.
Does the OPA564AIDWP require special PCB layout considerations?
Yes - the OPA564AIDWP's HSOP-20 DWP package requires soldering the bottom-side PowerPAD™ to a large, thermally optimized copper pour connected to V–. Power supply traces (especially V+ PWR and V– PWR) must be wide and short, with local 47µF tantalum + 0.1µF ceramic decoupling at each supply pin. Signal routing should avoid crossing high-current paths, and the E/S, IFLAG, and TFLAG lines should be routed away from noisy digital nets to prevent false triggering.
OPA564AIDWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tube
- 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-HSOIC
OPA564AIDWP FAQ
1.How can I place an order for OPA564AIDWP through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA564AIDWP 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 OPA564AIDWP reliable?
The price and inventory of OPA564AIDWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA564AIDWP is usually 5 days.
3.What payment methods are accepted for OPA564AIDWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA564AIDWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA564AIDWP?
OPA564AIDWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA564AIDWP 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 OPA564AIDWP?
For technical support, including OPA564AIDWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA564AIDWP requirements.
6.How does Aetrix verify that OPA564AIDWP is sourced from the original manufacturer or authorized distributors?
All OPA564AIDWP 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 OPA564AIDWP meets industry standards.
7.What is the process for return or replacement of OPA564AIDWP?
All OPA564AIDWP units undergo pre-shipment inspection (PSI). If there is an issue with OPA564AIDWP, 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 OPA564AIDWP part is unused and in its original packaging.
Return procedure for OPA564AIDWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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