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STMicroelectronics TSC200IDT
- Part No.:
- TSC200IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSC200IDT.pdf
- Description:
- HIGH VOLTAGE, CURRENT SENSE AMPL
- Quantity:
- Payment:
- Shipping:
Inventory:6,068
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Product details
Overview
TSC200IDT from STMicroelectronics is a high-side current sense amplifier with integrated open-drain comparator and 0.6 V internal reference, designed for automotive-grade overcurrent protection. It delivers 20 V/V gain, operates across -16 to +80 V common-mode voltage range, draws ≤1.8 mA quiescent current, and supports 2.7–18 V supply - enabling precise shunt-based current monitoring in 12 V/24 V battery systems and telecom power rails.
For engineers reviewing the TSC200IDT datasheet, TSC200IDT pinout, TSC200IDT application, or TSC200IDT equivalent, this device is selected for high-voltage, temperature-stable current sensing where latch-enabled fault detection, wide input CMV tolerance, and AEC-Q100 qualification are required - not for low-noise precision measurement below 20 mV differential input.
Technical Context
The TSC200IDT uses a dual-input-stage topology (A1/A2 amplifiers) that automatically selects operation mode based on VIN+ relative to 40% of VCC: Mode 1 activates when VICM > 40% VCC (e.g., 12 V at VCC = 12 V), using A2 for higher accuracy; Mode 2 engages when VICM < 40% VCC (e.g., -16 V), using A1 with slightly reduced CMRR. This architecture enables stable gain and offset performance across its full -16 to +80 V common-mode range.
Its comparator features 586–625 mV threshold (25 °C), 9 mV hysteresis, latching capability, and active-low RESET pin with 1.1 V threshold and 2 MΩ internal pull-down. The open-drain CMPOUT supports pull-up to 2.7–18 V independent of VCC, allowing direct interfacing with 3.3 V or 5 V logic while sensing 80 V rail currents.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - fixed ratio converting 100 mV shunt voltage to 2 V output, enabling direct ADC interface without external scaling |
| Common-mode range | -16 to +80 V - supports bidirectional current sensing on negative-ground or floating high-voltage rails (e.g., automotive battery, telecom -48 V) |
| Supply voltage | 2.7 to 18 V - compatible with 3.3 V microcontrollers and 12/24 V industrial systems without LDO pre-regulation |
| Accuracy | ±3.5 % max total error over -40 to +125 °C - includes gain error, offset drift (0.5 µV/°C), and CMR degradation |
| Bandwidth | 1 MHz - sufficient for fast overcurrent response (e.g., <2 µs settling for 10–100 mV step) in motor drive or DC-DC OCP |
| Quiescent current | ≤1.8 mA - enables always-on monitoring in battery-powered modules without excessive standby drain |
| Comparator reference | 0.6 V internal - sets overcurrent trip point via external resistor divider; eliminates need for external precision reference |
Pinout & Package
Supplied in SO8 package (5.0 × 4.0 × 1.25 mm, 1.27 mm pitch), RoHS-compliant, with exposed pad for thermal dissipation in high-power applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Positive supply input | Power domain for analog core and comparator; accepts 2.7–18 V; decoupling capacitor required near pin |
| 2 OUT | Analog output | Amplified current-sense voltage (20× VSense); drives 10 kΩ load to GND; 1.5 Ω output impedance limits capacitive loading to 10 nF |
| 3 CMPIN | Comparator inverting input | Connected internally to 0.6 V reference; external resistor divider sets overcurrent threshold; 15 nA max bias current |
| 4 GND | Analog ground | Reference return for amplifier and comparator; must be star-connected to minimize noise coupling from digital or power grounds |
| 5 RESET | Active-low comparator reset | Pulled low to clear latched fault; open or grounded at power-up ensures defined initial state; 2 MΩ internal pull-down |
| 6 CMPOUT | Open-drain comparator output | Drives external pull-up (to 2.7–18 V); sinks ≥2.35 mA; VOL ≤300 mV ensures clean logic LOW to MCU GPIO |
| 7 VIN− | Current-sense negative input | Connects to shunt resistor low side; ±16 µA input bias current affects low-current accuracy below 20 mV differential |
| 8 VIN+ | Current-sense positive input | Connects to shunt resistor high side; supports -16 V to +80 V common-mode; input protection up to ±82 V absolute max |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (-40 to +125 °C) qualification enables use in automotive body control modules, battery management, and ADAS power stages |
| Integrated 0.6 V reference | Eliminates external reference IC and associated layout sensitivity; enables accurate, temperature-stable overcurrent thresholds via two-resistor divider |
| Latching comparator | Retains fault state until explicit RESET signal - critical for safety-critical OCP where transient faults must persist for diagnostics |
| Mode-switching input architecture | Automatically selects optimal amplifier path (A1 or A2) based on VICM, maintaining ≥100 dB CMRR across full -16 to +80 V range |
| Wide supply range | Operates directly from 12 V battery or 3.3 V logic rail - removes need for dedicated bias supply in multi-rail systems |
Applications
| Automotive Battery Monitoring | Telecom -48 V Power Supply OCP |
|---|---|
Use Scenario: Real-time monitoring of starter battery current during engine cranking and regenerative braking in 12 V vehicles. IC Role / Device Role / Timing Role: High-side current sense amplifier with latch-enabled comparator detects >200 A surge and holds fault flag until ECU reset. Use Value: AEC-Q100 qualification and -40 to +125 °C operation ensure reliability under hood temperature extremes; 80 V CMV headroom accommodates load dump transients. |
Use Scenario: Overcurrent protection for distributed -48 V DC power feeds in 5G base station remote radio units. IC Role / Device Role / Timing Role: Measures current through shunt on negative-return path; comparator latches fault on >30 A draw and signals controller via CMPOUT. Use Value: -16 V common-mode capability allows direct connection to -48 V rail return; open-drain CMPOUT interfaces safely with 3.3 V FPGA I/O without level shifters. |
| Industrial Motor Drive Phase Current Sensing | Test Equipment Precision Load Control |
Use Scenario: Shunt-based phase current feedback in 24 V BLDC motor inverters for closed-loop torque control. IC Role / Device Role / Timing Role: Amplifies mV-level shunt voltage with 20 V/V gain; 1 MHz bandwidth supports PWM-frequency current sampling (e.g., 20 kHz carrier). Use Value: 3.5 % max error over temperature ensures consistent current loop gain across ambient conditions; SO8 package enables compact PCB layout near power stage. |
Use Scenario: Programmable electronic load calibration using shunt-based current measurement in bench power supplies. IC Role / Device Role / Timing Role: Provides stable analog output proportional to load current; internal comparator triggers automatic shutdown on preset limit violation. Use Value: 0.6 V reference and resistor-divider threshold setting enable repeatable, field-adjustable trip points; 1.8 mA IQ minimizes self-heating error in precision metrology paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sense amplifier with comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA282AIDR | 20 V/V gain, 2.7–18 V supply, but no integrated comparator or reference; requires external 1.2 V ref and comparator circuit | Lacks latch function and auto-reset capability; suitable only where MCU handles fault timing and debouncing | Select when system already provides precision reference and comparator resources; avoid if board space or BOM count is constrained |
| TSC201IDT | 50 V/V gain, identical pinout/package, same AEC-Q100 rating and -16 to +80 V CMV range | Better resolution for low-current sensing (e.g., <10 A), but reduced dynamic range before output saturation at same shunt value | Choose for applications requiring higher sensitivity on small shunts (e.g., 5 mΩ); verify output swing stays within ADC input range |
Compared with INA282AIDR, TSC200IDT reduces component count and improves fault response determinism via integrated latch and reference; versus TSC201IDT, it trades gain for wider unclipped current range - making it optimal for high-current, high-voltage OCP where 20× scaling matches typical 10–100 mV shunt drops.
Availability
TSC200IDT is available at Aetrix Electronics and suitable for automotive battery monitoring, telecom -48 V power supply OCP, and industrial motor drive phase current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSC200IDT 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, industrial, and power management ICs with strong analog/mixed-signal design heritage.
The TSC200IDT belongs to ST's high-voltage current sense amplifier product line, engineered specifically for robust overcurrent protection in harsh environments where wide common-mode range, latch functionality, and AEC-Q100 compliance are mandatory.
FAQ
What is the minimum differential input voltage for accurate operation?
The TSC200IDT is specified for accurate operation above 20 mV differential input (VSense). Below this threshold, input stage transconductance drops significantly, causing increased offset error - e.g., up to 400 mV output error at VSense = 0 mV. For sub-20 mV sensing, select a higher-gain variant like TSC201IDT or add external amplification.
How does the RESET pin function during power-up?
When RESET is left open or grounded at power-up, the comparator initializes in a known reset state. If RESET is high during startup, CMPOUT powers up high and requires an active-low pulse to latch a valid fault condition. The internal 2 MΩ pull-down ensures safe default behavior when RESET is unconnected.
Can the TSC200IDT be used for low-side current sensing?
Yes - the TSC200IDT supports both high-side and low-side configurations. In low-side mode, VIN− connects to system ground and VIN+ to shunt output; common-mode voltage remains near 0 V, placing operation in Mode 2 (A1 amplifier active). Accuracy remains within spec, though CMRR is slightly lower than in high-side Mode 1.
What is the maximum capacitive load on the OUT pin?
The OUT pin tolerates up to 10 nF capacitive load without sustained oscillation, per datasheet Table 4. Exceeding this may cause instability or slow settling. For driving ADC inputs with sample-and-hold capacitance >10 nF, add a series 10–100 Ω isolation resistor between OUT and ADC to maintain stability.
TSC200IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Open Drain
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1 MHz
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 840µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 18 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TSC200IDT FAQ
1.How can I place an order for TSC200IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC200IDT 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 TSC200IDT reliable?
The price and inventory of TSC200IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC200IDT is usually 5 days.
3.What payment methods are accepted for TSC200IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC200IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC200IDT?
TSC200IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC200IDT 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 TSC200IDT?
For technical support, including TSC200IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC200IDT requirements.
6.How does Aetrix verify that TSC200IDT is sourced from the original manufacturer or authorized distributors?
All TSC200IDT 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 TSC200IDT meets industry standards.
7.What is the process for return or replacement of TSC200IDT?
All TSC200IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSC200IDT, 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 TSC200IDT part is unused and in its original packaging.
Return procedure for TSC200IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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