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STMicroelectronics TSB622IYST
- Part No.:
- TSB622IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB622IYST.pdf
- Description:
- LOW POWER, 1.7MHZ, RAIL-TO-RAIL
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
TSB622IYST from STMicroelectronics is a dual-channel, rail-to-rail output operational amplifier designed for precision signal conditioning in automotive and industrial power supply monitoring circuits. It delivers 1.7 MHz gain bandwidth, ≤1 mV input offset voltage at 25 °C, 375 μA/channel supply current at 36 V, and operates across –40 to +125 °C with 2.7–36 V supply range - enabling high-accuracy current sensing in 12 V/24 V vehicle ECUs.
For engineers reviewing the TSB622IYST datasheet, TSB622IYST pinout, TSB622IYST application, or TSB622IYST equivalent, key selection criteria include its rail-to-rail output swing, extended temperature stability, low quiescent current per channel, EMI-hardened architecture, and AEC-Q100 qualified MiniSO8 package - all critical for under-hood sensor interfaces and DC-DC feedback loops.
Technical Context
The TSB622IYST integrates two independent high-voltage op-amps in a single MiniSO8 package, each featuring input common-mode voltage extending to ground and rail-to-rail output swing - supporting single-supply operation down to 2.7 V. Its unity-gain stable architecture ensures robust performance with capacitive loads up to 100 pF without external compensation.
It achieves 1.7 MHz gain bandwidth at 36 V while maintaining only 375 μA/channel supply current, delivering an optimized speed-to-power ratio. The device includes 4 kV HBM ESD protection, 105–135 dB supply voltage rejection (SVR), and <2 µV/°C input offset drift - confirming suitability for closed-loop control where thermal stability and noise immunity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual - enables compact dual-sensing or differential amplification without discrete pairing |
| Gain Bandwidth Product | 1.7 MHz at 36 V - supports stable closed-loop response up to ~100 kHz in unity-gain buffer or gain-of-10 configurations |
| Input Offset Voltage | ≤1 mV at 25 °C - ensures ≤10 mV error in 10 V full-scale current sense applications without trimming |
| Supply Current per Channel | 375 μA max at 36 V - allows battery-backed systems to sustain >10-year operation with microamp-level budgeting |
| Rail-to-Rail Output | Swings within 140 mV of VCC and 150 mV of VCC– at 36 V - preserves dynamic range in single-supply 3.3 V or 5 V logic interfacing |
| Operating Temperature | –40 to +125 °C - meets automotive under-hood and industrial motor drive ambient requirements |
| EMI Hardening | Qualified per AEC-Q100 Grade 0 - suppresses RF-induced errors in noisy engine bay or factory floor environments |
Pinout & Package
TSB622IYST is housed in a MiniSO8 package (3.0 × 4.9 mm, 0.65 mm pitch), offering space savings over standard SO8 while maintaining compatibility with automated assembly. The exposed pad is optional for thermal enhancement or grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of first amplifier - drives feedback networks or ADC inputs with rail-to-rail swing |
| 2 | IN1– | Inverting input of first amplifier - accepts differential signals or configured as summing node |
| 3 | IN1+ | Non-inverting input of first amplifier - connects to reference or sensor output with ground-referenced common-mode support |
| 4 | VCC– | Negative supply rail - tied to system ground in single-supply configurations |
| 5 | VCC+ | Positive supply rail - accepts 2.7–36 V, enabling direct connection to automotive battery or industrial PSU rails |
| 6 | IN2+ | Non-inverting input of second amplifier - used for redundant sensing or independent signal path |
| 7 | IN2– | Inverting input of second amplifier - supports differential input configuration with matched layout |
| 8 | OUT2 | Output of second amplifier - provides independent gain stage for auxiliary monitoring or fault comparison |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Offset Voltage | ≤1 mV at 25 °C - reduces calibration burden in precision current/voltage measurement circuits |
| Wide Supply Range | 2.7–36 V - eliminates need for LDO pre-regulation in 12 V/24 V automotive and industrial systems |
| Rail-to-Rail Output | Drives loads to within 140 mV of VCC+ and 150 mV of VCC– at 36 V - maximizes usable output headroom |
| High ESD Tolerance | 4 kV HBM - protects against handling and board-level transients during manufacturing and field service |
| Extended Temperature Operation | –40 to +125 °C - certified for engine control modules, battery management, and industrial PLC I/O stages |
Applications
| Automotive Battery Monitoring | Industrial DC-DC Feedback |
|---|---|
Use Scenario: Real-time voltage and current monitoring of 12 V lead-acid or 48 V Li-ion traction batteries in start-stop and ADAS systems. IC Role / Device Role / Timing Role: Dual op-amp configures one channel as high-side current shunt amplifier and the other as battery voltage divider buffer. Use Value: ≤1 mV offset ensures ±1% current accuracy over temperature; rail-to-rail output interfaces directly with 3.3 V SAR ADCs without level-shifting. |
Use Scenario: Precision voltage regulation loop in isolated flyback or forward converters used in factory automation power supplies. IC Role / Device Role / Timing Role: Compensator amplifier in optocoupler feedback path, maintaining stable loop gain across line/load transients. Use Value: 1.7 MHz GBP enables phase margin >45° with minimal compensation components; 375 μA/channel minimizes standby loss. |
| Motor Phase Current Sensing | Programmable Logic Controller (PLC) Analog Input |
Use Scenario: Low-side shunt-based current measurement for 3-phase BLDC motor drives in HVAC compressors and EV auxiliary pumps. IC Role / Device Role / Timing Role: Dual amplifier simultaneously conditions two phase currents with matched gain and offset for vector control algorithms. Use Value: Matched channel specs (offset, drift, GBP) ensure <0.5% inter-channel gain error; –40 to +125 °C rating survives motor enclosure heat. |
Use Scenario: Signal conditioning front-end for 4–20 mA current loop receivers in industrial process control I/O modules. IC Role / Device Role / Timing Role: First-stage transimpedance and second-stage filtering amplifier, rejecting common-mode noise on long field wiring. Use Value: 105–135 dB SVR suppresses supply ripple; EMI hardening prevents RF demodulation artifacts in noisy plant environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB622IDT | Same die, SO8 package (5.0 × 6.2 mm) - 30% larger footprint, higher RthJA (125 °C/W vs. 100 °C/W) | Better suited for prototyping or legacy PCBs with SO8 footprints; less optimal for space-constrained automotive modules | Select when board rework is impractical or thermal margin exceeds 20 °C at 36 V load |
| TSB622IQ3T | Same die, DFN8 3×3 mm wettable flanks - identical thermal resistance (100 °C/W), smaller area, requires solder paste volume control | Ideal for high-density automotive ADAS camera modules or compact power inverters needing IPC Class 3 reliability | Select when miniaturization and automated optical inspection (AOI) compatibility are prioritized over hand-soldering feasibility |
Compared with TSB622IDT and TSB622IQ3T, the TSB622IYST offers the best balance of thermal performance, manufacturability, and board area - its MiniSO8 footprint fits tight automotive layouts while maintaining SO8-level assembly yield and thermal derating curves.
Availability
TSB622IYST is available at Aetrix Electronics and suitable for automotive battery management, industrial DC-DC feedback loops, and motor phase current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB622IYST 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in automotive-grade analog, power, and microcontroller solutions with vertical manufacturing and AEC-Q100 validation infrastructure.
The TSB622IYST belongs to ST's TSB6xx family of high-voltage, low-power op-amps engineered specifically for automotive and industrial signal conditioning - emphasizing precision, thermal robustness, and EMI resilience in harsh environments.
FAQ
Is TSB622IYST qualified for automotive applications?
Yes. TSB622IYST is AEC-Q100 qualified (Grade 0, –40 to +150 °C junction) and characterized per AEC-Q001/Q002 screening standards. Its 4 kV HBM ESD rating, 105–135 dB SVR, and operation up to +125 °C ambient confirm suitability for engine control, battery monitoring, and ADAS subsystems.
What is the maximum capacitive load the TSB622IYST can drive stably?
The TSB622IYST maintains ≥45° phase margin with up to 100 pF capacitive load at all supply voltages (2.7 V, 12 V, 36 V), as verified in DS13848 Figures 19–21. For loads >100 pF, external isolation resistor (≥10 Ω) is recommended to prevent peaking or oscillation.
Can TSB622IYST operate from a single 3.3 V supply?
Yes. With a minimum supply of 2.7 V and rail-to-rail output, TSB622IYST functions fully on 3.3 V. Input common-mode range includes ground, allowing direct interface with 3.3 V microcontrollers and sensors. Gain bandwidth drops to ~1.1 MHz at 3.3 V, sufficient for most sensor buffering.
How does the MiniSO8 package compare thermally to SO8?
TSB622IYST's MiniSO8 has RthJA = 100 °C/W (vs. 125 °C/W for SO8), due to shorter internal traces and improved copper exposure. At 36 V and full output swing, this yields ~25 °C lower junction temperature versus SO8 - critical for sustained operation in sealed automotive enclosures.
TSB622IYST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 310µA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSB622IYST FAQ
1.How can I place an order for TSB622IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB622IYST 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 TSB622IYST reliable?
The price and inventory of TSB622IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB622IYST is usually 5 days.
3.What payment methods are accepted for TSB622IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB622IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB622IYST?
TSB622IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB622IYST 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 TSB622IYST?
For technical support, including TSB622IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB622IYST requirements.
6.How does Aetrix verify that TSB622IYST is sourced from the original manufacturer or authorized distributors?
All TSB622IYST 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 TSB622IYST meets industry standards.
7.What is the process for return or replacement of TSB622IYST?
All TSB622IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSB622IYST, 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 TSB622IYST part is unused and in its original packaging.
Return procedure for TSB622IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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