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STMicroelectronics TSB624IYDT
- Part No.:
- TSB624IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB624IYDT.pdf
- Description:
- Linear IC's
- Quantity:
- Payment:
- Shipping:
Inventory:2,463
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Product details
Overview
TSB624IYDT from STMicroelectronics is a quad-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 per channel supply current at 36 V, and operates across –40 to +125 °C with 2.7–36 V supply range.
For engineers reviewing the TSB624IYDT datasheet, TSB624IYDT pinout, TSB624IYDT application, or TSB624IYDT equivalent, key selection criteria include its AEC-Q100 qualification, rail-to-rail output swing into 10 kΩ loads, input common-mode range extending to ground, and low-noise (25 nV/√Hz) performance at 36 V supply - critical for battery sensing, motor control feedback, and high-side current measurement.
Technical Context
The TSB624IYDT integrates four independent high-voltage op-amps in a single TSSOP14 package, each featuring unity-gain stability, 45° phase margin, and 0.60 V/µs slew rate at 36 V. Its input stage supports common-mode voltages from VCC− −0.1 V to VCC+ −1 V, enabling direct interfacing with grounded sensors and shunt-based current monitors.
It achieves 105–120 dB large-signal voltage gain and 100–135 dB CMRR over temperature, with EMI-hardened architecture and 3 kV HBM ESD rating. The device maintains rail-to-rail output drive capability (±35 mA sink/source) while consuming only 375 µA per channel at full 36 V supply - optimizing power efficiency in always-on automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent amplifiers - enables compact multi-signal conditioning without board-level duplication. |
| Gain Bandwidth Product | 1.7 MHz at 36 V - supports stable closed-loop operation up to ~100 kHz with gain ≥10. |
| Input Offset Voltage | ≤1 mV at 25 °C - ensures ≤10 mV error in 10× gain configurations at room temperature. |
| Supply Current per Channel | 375 µA max at 36 V - enables ultra-low-power operation in 12 V/24 V automotive domains. |
| Rail-to-Rail Output | Swings within 35–150 mV of rails - delivers full dynamic range into standard ADC reference levels. |
| Operating Temperature | –40 to +125 °C - qualified for under-hood and powertrain applications per AEC-Q100 Grade 1. |
| ESD Rating | 3 kV HBM - exceeds automotive system-level ESD immunity requirements (ISO 10605). |
Pinout & Package
TSSOP14 (Thin Shrink Small Outline Package, 14-pin), 5.0 mm × 6.4 mm × 1.05 mm body height, 0.65 mm pitch, wettable flanks compatible. RoHS-compliant, ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives external load or next-stage input with rail-to-rail swing. |
| 2 | IN1− | Inverting input of Amp1 - accepts feedback or differential signal reference. |
| 3 | IN1+ | Non-inverting input of Amp1 - connects to sensor, divider, or reference voltage. |
| 4 | VCC+ | Positive supply rail - must be decoupled locally (100 nF ceramic) for stability. |
| 5 | IN2+ | Non-inverting input of Amp2 - isolated signal path for dual-sensor or redundancy use. |
| 6 | IN2− | Inverting input of Amp2 - supports differential configuration or active filtering. |
| 7 | OUT2 | Amplifier 2 output - independent output stage, no crosstalk with OUT1 (120 dB isolation). |
| 8 | OUT3 | Amplifier 3 output - enables triple-redundant sensing or multi-loop control in one footprint. |
| 9 | IN3− | Inverting input of Amp3 - dedicated input for third analog channel. |
| 10 | IN3+ | Non-inverting input of Amp3 - supports biasing for grounded-source transducers. |
| 11 | VCC− | Negative supply rail - referenced to system ground; supports single-supply operation. |
| 12 | IN4+ | Non-inverting input of Amp4 - allows fourth independent signal path (e.g., diagnostics). |
| 13 | IN4− | Inverting input of Amp4 - configurable for gain-setting or comparator hysteresis. |
| 14 | OUT4 | Amplifier 4 output - fully buffered, capable of driving 10 kΩ loads to within 150 mV of rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >98% of full supply range into 10 kΩ, enabling direct interface with 3.3 V/5 V ADCs. |
| Extended supply range (2.7–36 V) | Operates across automotive battery transients (load dump, cold crank) without external regulation. |
| Low input offset drift (2 µV/°C) | Ensures <±20 µV total drift over –40 to +125 °C - critical for precision current sensing. |
| EMI-hardened architecture | Rejects >100 MHz RF interference without external filtering - validated per ISO 11452-4. |
| AEC-Q100 Grade 1 qualified | Qualified for automotive applications requiring operation up to +125 °C ambient. |
Applications
| Battery Management System (BMS) | Automotive HVAC Blower Control |
|---|---|
Use Scenario: Monitoring cell voltage and pack current in 12 V/48 V hybrid architectures using shunt resistors and voltage dividers. IC Role / Device Role / Timing Role: Quad op-amp performs simultaneous voltage buffering, current-sense amplification, reference scaling, and fault comparator functions. Use Value: Single TSSOP14 replaces four discrete SO8 op-amps, reducing PCB area by 65% and BOM count by 75%. |
Use Scenario: Closed-loop speed control of DC brushless blower motors via PWM-driven MOSFETs with current feedback. IC Role / Device Role / Timing Role: Amplifies motor phase current sense signals, conditions Hall-effect rotor position inputs, and buffers PWM ramp references. Use Value: Rail-to-rail output ensures full 0–5 V DAC compatibility; 1.7 MHz GBW supports <5 µs loop response time. |
| Industrial Power Supply Monitor | Onboard Charger (OBC) Feedback Loop |
Use Scenario: Real-time monitoring of output voltage, current, and temperature in DIN-rail mounted AC/DC converters. IC Role / Device Role / Timing Role: Configured as precision difference amplifier (Vout), current-sense amplifier (Isense), reference buffer, and thermal comparator. Use Value: Input common-mode range includes ground enables direct shunt sensing; 375 µA/channel minimizes standby power loss. |
Use Scenario: Isolated feedback path for secondary-side regulation in bidirectional OBC topologies with SiC MOSFETs. IC Role / Device Role / Timing Role: Amplifies isolated voltage/current sense signals, drives optocoupler LED bias, and provides soft-start ramp generation. Use Value: 36 V absolute max rating withstands transient spikes on auxiliary supplies; 25 nV/√Hz noise preserves regulation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB624IPT | Same die, SO14 package (8.65 mm × 6.0 mm) - larger footprint, higher thermal resistance (100 °C/W vs. 105 °C/W). | Preferred for prototyping or legacy SO14 layouts; less suitable for space-constrained automotive modules. | Select when board rework is impractical or thermal derating margins exceed 15 °C. |
| TSB622IYDT | Dual-channel version in same TSSOP14 - identical specs per channel, but only two amplifiers enabled. | Used where only two signal paths required (e.g., voltage + current sense only), reducing cost and layout complexity. | Choose for cost-sensitive dual-function designs; avoids unused channels and associated quiescent current. |
Compared with TSB624IPT, the TSB624IYDT offers 15% smaller PCB area and improved thermal performance in high-density modules; versus TSB622IYDT, it doubles channel count without increasing footprint - essential for functional safety redundancy or multi-sensor fusion.
Availability
TSB624IYDT is available at Aetrix Electronics and suitable for automotive battery management, industrial power supply monitoring, and HVAC motor control requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB624IYDT 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.
The TSB62x series belongs to ST's high-voltage precision op-amp product line, engineered specifically for robust signal conditioning in harsh automotive environments - emphasizing AEC-Q100 compliance, EMI resilience, and wide-supply operation.
FAQ
Is TSB624IYDT pin-compatible with other TSB62x variants?
No - TSB624IYDT uses TSSOP14 with 14 pins assigned to four op-amps (including dedicated VCC+ and VCC−), whereas TSB622IYDT shares the same package but routes only two op-amps and repurposes pins 8–14. Pin mapping differs fundamentally between channel counts; PCB layout is not interchangeable.
What is the maximum capacitive load the TSB624IYDT can drive stably?
The TSB624IYDT maintains ≥45° phase margin driving up to 100 pF capacitive load with 10 kΩ series resistance, as verified in DS13848 Figure 18–21. For loads >100 pF, a 10–47 Ω isolation resistor is required in series with the output to prevent peaking or oscillation.
Does TSB624IYDT support true single-supply operation with input down to ground?
Yes - its input common-mode voltage range extends to VCC− −0.1 V (i.e., 0.1 V below ground when VCC− = 0 V), allowing direct connection of grounded sensors or shunt resistors without level-shifting circuitry, as confirmed in Table 5 and Figure 11 of DS13848.
How does the 3 kV HBM ESD rating impact system-level design?
The 3 kV HBM rating meets ISO 10605 Class III (30 kV air, 15 kV contact) requirements when combined with proper PCB layout: 2 mm clearance to chassis ground, localized 100 nF decoupling, and avoidance of floating traces near connectors - enabling direct placement in front-end sensor interfaces without external TVS diodes.
TSB624IYDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- TSB
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 4
- Output Type:
- Single Ended, 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 (x4 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:
- 14-SO
TSB624IYDT FAQ
1.How can I place an order for TSB624IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB624IYDT 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 TSB624IYDT reliable?
The price and inventory of TSB624IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB624IYDT is usually 5 days.
3.What payment methods are accepted for TSB624IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB624IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB624IYDT?
TSB624IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB624IYDT 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 TSB624IYDT?
For technical support, including TSB624IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB624IYDT requirements.
6.How does Aetrix verify that TSB624IYDT is sourced from the original manufacturer or authorized distributors?
All TSB624IYDT 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 TSB624IYDT meets industry standards.
7.What is the process for return or replacement of TSB624IYDT?
All TSB624IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB624IYDT, 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 TSB624IYDT part is unused and in its original packaging.
Return procedure for TSB624IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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