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Toshiba Semiconductor and Storage TLP7820(D4BLF4,E
- Part No.:
- TLP7820(D4BLF4,E
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TLP7820(D4BLF4,E.pdf
- Description:
- IC OPAMP ISOLATION 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:765
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Product details
Overview
TLP7820(D4BLF4,E from Toshiba Electronic Devices & Storage Corporation is a galvanically isolated analog amplifier IC designed for high-accuracy current sensing in motor drive inverters. It provides ±0.5 % gain accuracy (Rank B), 230 kHz bandwidth, and 15 kV/µs common-mode transient immunity, operating across –40 °C to +105 °C with dual 4.5–5.5 V supply rails.
For engineers reviewing the TLP7820(D4BLF4,E datasheet, TLP7820(D4BLF4,E pinout, TLP7820(D4BLF4,E application, or TLP7820(D4BLF4,E equivalent, this device serves as a precision isolation amplifier for bidirectional phase current measurement in industrial AC drives and EV traction inverters where signal integrity under high dV/dt noise is critical.
Technical Context
The TLP7820(D4BLF4,E integrates an optically coupled isolation barrier between input and output stages, using an internal LED-photodiode pair driving a differential output amplifier. Its input stage accepts ±200 mV differential voltage across VIN+ and VIN–, referenced to GND1, while the output stage delivers rail-to-rail differential analog signals (VOUT+, VOUT–) referenced to GND2.
It requires external 0.1 µF bypass capacitors between VDD1–GND1 and VDD2–GND2 per datasheet layout guidance. The D4 option denotes compliance with EN IEC 60747-5-5 for reinforced insulation, validated at 5000 VRMS isolation voltage and ≥8.0 mm creepage/clearance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Accuracy | ±0.5 % (Rank B): Enables direct shunt-based current measurement without post-calibration trimming in production systems. |
| Bandwidth | 230 kHz (–3 dB): Supports accurate capture of fast-switching inverter current waveforms up to 10 kHz fundamental with harmonic fidelity. |
| CMTI | 15 kV/µs (min): Maintains signal integrity during IGBT switching transients in 650 V–1200 V power modules. |
| Input Offset Voltage | 0.9 mV (typ.): Limits zero-current error to ≤0.45 mV after gain, critical for low-speed torque control and stall detection. |
| Operating Temp Range | –40 °C to +105 °C: Qualified for under-hood automotive inverter control and industrial motor drive environments. |
| Isolation Voltage | 5000 VRMS (60 s): Meets reinforced insulation requirements for functional safety in IEC 61800-5-1 compliant drives. |
| Nonlinearity | 0.02 % (typ., ±200 mV): Ensures <±0.04 mV deviation over full-scale range-sufficient for Class 0.2 current measurement. |
Pinout & Package
Package: 8-pin DIP (TOSHIBA 11-6B1A), 2.3 mm max height, 8.0 mm min creepage/clearance, 0.4 mm min internal isolation thickness, weight 0.205 g (typ.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VDD1 | Input-side supply | 4.5–5.5 V rail powering input amplifier and LED driver; requires local 0.1 µF bypass to Pin 4. |
| 2: VIN+ | Differential input (+) | Accepts shunt voltage up to ±200 mV; must remain ≤VDD1 – 2 V to avoid test mode activation. |
| 3: VIN– | Differential input (–) | Reference node for input differential pair; tied to shunt resistor low-side in typical motor phase sensing. |
| 4: GND1 | Input-side ground | Return path for VDD1 and input circuitry; electrically isolated from GND2 by optical barrier. |
| 5: GND2 | Output-side ground | Reference for VOUT± and VDD2; forms isolated secondary domain for MCU ADC interface. |
| 6: VOUT– | Differential output (–) | Complementary analog output; used with VOUT+ for noise-rejecting differential ADC sampling. |
| 7: VOUT+ | Differential output (+) | Main analog output; gain × (VIN+ – VIN–); supports 3–5.5 V supply range on VDD2. |
| 8: VDD2 | Output-side supply | 3–5.5 V rail for output amplifier; requires local 0.1 µF bypass to Pin 5. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation (D4 Option) | EN IEC 60747-5-5 certified with 5000 VRMS, 8.0 mm creepage, enabling safety-critical motor control without external isolation components. |
| High CMTI Immunity | 15 kV/µs minimum ensures stable operation during 1200 V IGBT switching with <10 ns edge rates in industrial inverters. |
| Low Gain Drift | 0.00012 V/V/°C enables stable current measurement across full temperature range without software compensation. |
| Dual-Supply Flexibility | VDD1 (4.5–5.5 V) and VDD2 (3–5.5 V) allow independent optimization for input signal conditioning and MCU-side interfacing. |
| Low Input Offset | 0.9 mV typical offset minimizes zero-error in bidirectional current sensing for vector-controlled PMSM drives. |
Applications
| Industrial AC Motor Drives | EV Traction Inverters |
|---|---|
|
Use Scenario: Real-time phase current feedback in 3-phase VFDs for closed-loop field-oriented control (FOC) of induction and PMSM motors. IC Role / Device Role / Timing Role: Isolated analog front-end converting shunt resistor voltage to differential output for MCU ADC sampling at 10–20 kHz. Use Value: ±0.5 % gain accuracy and 230 kHz bandwidth enable precise torque ripple suppression and efficient thermal management in 7.5–30 kW drives. |
Use Scenario: High-side and low-side current monitoring in 400 V/800 V battery-powered traction inverters with SiC MOSFETs. IC Role / Device Role / Timing Role: Reinforced-isolation amplifier providing noise-immune current data to safety MCU during 100+ kHz switching transitions. Use Value: 15 kV/µs CMTI prevents false triggering and maintains ASIL-B functional safety integrity under harsh EMI conditions. |
| Solar PV String Inverters | UPS & Energy Storage Systems |
|
Use Scenario: DC-link and AC output current sensing in transformerless grid-tied inverters with bipolar modulation schemes. IC Role / Device Role / Timing Role: Galvanically isolated analog sensor interfacing between high-voltage DC bus and low-voltage control domain. Use Value: 5000 VRMS isolation rating and EN IEC 60747-5-5 compliance meet IEC 62109 and UL 1741 SB requirements for PV safety. |
Use Scenario: Bidirectional current measurement in bi-directional DC-DC converters and battery management interfaces within modular UPS units. IC Role / Device Role / Timing Role: Precision isolated amplifier supporting charge/discharge current monitoring with <0.1 % full-scale error. Use Value: Low 0.02 % nonlinearity and –40 °C to +105 °C operation ensure metrology-grade accuracy across wide ambient and load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1301DWV | Capacitive isolation; 200 kHz bandwidth; ±0.3 % gain error; no D4 certification. | Lacks EN IEC 60747-5-5 qualification; requires external safety capacitor for reinforced insulation. | Preferred for cost-sensitive industrial designs where system-level safety certification is handled externally. |
| ISO224BDWVR | Capacitive isolation; 100 kHz bandwidth; ±0.5 % gain error; 10 kV/µs CMTI. | Lower bandwidth and CMTI limit use in >20 kHz SiC inverter topologies. | Valid for legacy IGBT-based UPS and HVAC systems where 100 kHz response suffices. |
Compared with AMC1301DWV and ISO224BDWVR, the TLP7820(D4BLF4,E offers higher CMTI and D4-certified reinforced insulation out-of-the-box, reducing system-level safety validation effort for new motor drive platforms targeting IEC 61800-5-1 compliance.
Availability
TLP7820(D4BLF4,E is available at Aetrix Electronics and suitable for industrial motor drives, EV traction inverters, and solar string inverters requiring stable component supply with long-term lifecycle assurance.
Supply support for TLP7820(D4BLF4,E 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
Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and optoelectronics, with global distribution and automotive-grade quality systems.
The TLP7820 series belongs to Toshiba's photocoupler-based isolation amplifier product line, engineered specifically for high-precision, high-noise immunity current sensing in motor control and power conversion systems.
FAQ
What is the isolation rating and safety certification status of the TLP7820(D4BLF4,E?
The TLP7820(D4BLF4,E is rated for 5000 VRMS isolation (60 s) and carries EN IEC 60747-5-5 certification under Option D4, plus UL 1577 (E67349), cUL CSA 5A (E67349), and CQC GB4943.1 approvals. This qualifies it for reinforced insulation in IEC 61800-5-1-compliant motor drives without additional external safety components.
Does the TLP7820(D4BLF4,E require external bypass capacitors, and where should they be placed?
Yes, the TLP7820(D4BLF4,E requires two 0.1 µF ceramic bypass capacitors: one between Pin 1 (VDD1) and Pin 4 (GND1), and another between Pin 5 (GND2) and Pin 8 (VDD2). These must be placed as close as possible to their respective pins to stabilize internal LED biasing and output amplifier operation-omission causes erratic output or failure to switch properly.
What is the meaning of the "(D4BLF4,E" suffix in TLP7820(D4BLF4,E?
The suffix encodes configuration details: D4 indicates EN IEC 60747-5-5 reinforced insulation qualification; B denotes Gain Rank B (±0.5 %); LF4 specifies tape-and-reel packaging (16 mm tape, 4000 pcs/reel); and E confirms RoHS-compliant lead-free finish. This exact variant meets stringent safety and environmental requirements for automotive-adjacent industrial applications.
Can the TLP7820(D4BLF4,E interface directly with a 3.3 V microcontroller ADC?
Yes-the TLP7820(D4BLF4,E supports VDD2 from 3 V to 5.5 V and delivers rail-to-rail differential output (VOUT+, VOUT–) compatible with 3.3 V ADC inputs when VDD2 = 3.3 V. Its 21 Ω output resistance and 230 kHz bandwidth ensure minimal loading and sufficient settling time for 1 MSPS sampling rates.
How does the TLP7820(D4BLF4,E handle input overvoltage conditions?
The TLP7820(D4BLF4,E specifies absolute maximum steady-state input voltages of –0.5 V to VDD1 + 0.5 V. Exceeding VDD1 – 2 V on VIN+ or VIN– forces the device into test mode-so for VDD1 = 5 V, inputs must stay ≤3 V. Two-second transients up to VDD1 + 0.5 V are allowed, but sustained overvoltage risks permanent damage per Section 7 of the datasheet.
TLP7820(D4BLF4,E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Isolation
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 230 kHz
- Current - Input Bias:
- 5.5 nA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 12mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TLP7820(D4BLF4,E FAQ
1.How can I place an order for TLP7820(D4BLF4,E through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP7820(D4BLF4,E 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 TLP7820(D4BLF4,E reliable?
The price and inventory of TLP7820(D4BLF4,E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP7820(D4BLF4,E is usually 5 days.
3.What payment methods are accepted for TLP7820(D4BLF4,E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP7820(D4BLF4,E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP7820(D4BLF4,E?
TLP7820(D4BLF4,E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP7820(D4BLF4,E 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 TLP7820(D4BLF4,E?
For technical support, including TLP7820(D4BLF4,E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP7820(D4BLF4,E requirements.
6.How does Aetrix verify that TLP7820(D4BLF4,E is sourced from the original manufacturer or authorized distributors?
All TLP7820(D4BLF4,E 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 TLP7820(D4BLF4,E meets industry standards.
7.What is the process for return or replacement of TLP7820(D4BLF4,E?
All TLP7820(D4BLF4,E units undergo pre-shipment inspection (PSI). If there is an issue with TLP7820(D4BLF4,E, 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 TLP7820(D4BLF4,E part is unused and in its original packaging.
Return procedure for TLP7820(D4BLF4,E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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