My Inquiry
My Account
STMicroelectronics TSC202IDT
- Part No.:
- TSC202IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSC202IDT.pdf
- Description:
- SO 08 .15 JEDEC
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSC202IDT from STMicroelectronics is a high-side/low-side current sense amplifier with integrated open-drain comparator and 0.6 V internal reference, designed for overcurrent protection in automotive and industrial power rails. It delivers 100 V/V gain, supports -16 to +80 V common-mode input voltage, operates from 2.7–18 V supply, and maintains ≤3.5% total output error across -40 to +125 °C.
For engineers reviewing the TSC202IDT datasheet, TSC202IDT pinout, TSC202IDT application, or TSC202IDT equivalent, key selection criteria include its wide common-mode range, latchable comparator with reset, gain accuracy vs. temperature, SO8 package compatibility, and AEC-Q100 qualification for automotive use.
Technical Context
The TSC202IDT uses a dual-input-stage architecture that dynamically selects between A1 (active when VICM < 40% VCC) and A2 (active when VICM > 40% VCC) to maintain operation across -16 to +80 V common-mode voltage - far exceeding its 2.7–18 V supply rail. This enables direct sensing on battery rails or telecom power amplifiers without level-shifting.
Its integrated comparator features 586–625 mV threshold, 9 mV hysteresis, latching capability, and active-low RESET pin with 2 MΩ internal pull-down. The 0.6 V reference connects to CMPIN, allowing external resistor dividers to set precise overcurrent trip points independent of supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100 V/V - scales shunt voltage to full-scale analog output at low sense voltages (e.g., 10 mV → 1 V) |
| Common-mode range | -16 to +80 V - enables direct high-side sensing on 12 V, 24 V, 48 V, and 60 V systems without attenuation networks |
| Total output error | ±3.5 % max - includes gain error, offset drift, and CMR effects over full temperature and supply range |
| Comparator threshold | 586–625 mV - referenced to internal 0.6 V bandgap; stable over -40 to +125 °C |
| Supply voltage | 2.7 to 18 V - compatible with 3.3 V microcontrollers and 12–16 V automotive/industrial rails |
| Quiescent current | 1.8 mA max - enables always-on monitoring in battery-backed or low-power systems |
| Bandwidth | 0.3 MHz - supports fast overcurrent detection (e.g., <1 µs response with 0.3 µs comparator propagation delay) |
Pinout & Package
Supplied in SO8 (Small Outline 8-pin) package per JEDEC MS-012, with standard 1.27 mm pitch and exposed pad not present. Pin 1 marked by notch or dot; pin numbering counterclockwise from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Accepts 2.7–18 V; powers both amplifier and comparator; decoupling capacitor required at pin |
| OUT | Analog output | 100× amplified differential voltage across shunt; rail-to-rail swing (VCC − 0.25 V / 65 mV) |
| CMPIN | Comparator inverting input | Connected internally to 0.6 V reference; external resistor divider sets overcurrent threshold |
| GND | Analog ground reference | Return path for amplifier, comparator, and reference; must be low-impedance connection to shunt ground |
| RESET | Active-low comparator reset | Pulled low to clear latched comparator output; open or grounded for automatic reset at power-up |
| CMPOUT | Open-drain comparator output | Sinks up to 2.35 mA; requires external pull-up to 2.7–18 V (independent of VCC) |
| VIN− | Current sense negative input | Connects to shunt resistor low side; handles ±16 µA input bias current in Mode 2 |
| VIN+ | Current sense positive input | Connects to shunt resistor high side; handles ±16 µA input bias current in Mode 1 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified for automotive Grade 1 (-40 to +125 °C), enabling use in engine control, battery management, and ADAS power stages |
| Latching comparator | Retains overcurrent event state until explicit RESET signal - eliminates need for continuous polling or external flip-flop |
| Internal 0.6 V reference | Stable bandgap reference tied to CMPIN, enabling accurate, supply-independent trip point setting via two-resistor divider |
| Mode-switching input topology | Automatically selects A1 or A2 amplifier based on VICM relative to VCC, sustaining performance across full -16 to +80 V range |
| High CMRR | 100–120 dB - rejects noise from switching regulators or motor drives while measuring µV-level shunt voltages |
Applications
| Automotive Battery Monitoring | Telecom Power Amplifier Protection |
|---|---|
Use Scenario: Real-time monitoring of 12 V starter battery and 48 V mild-hybrid rail current during cold cranking and regenerative braking. IC Role / Device Role / Timing Role: High-side current sense amplifier with latchable comparator detects overcurrent faults within microseconds and holds fault flag for ECU diagnostics. Use Value: Eliminates need for isolated current sensors or external comparators, reducing BOM cost and PCB area while meeting ISO 16750-2 pulse test requirements. | Use Scenario: Protecting GaN power amplifiers in 5G base stations from short-circuit events during RF burst transmission. IC Role / Device Role / Timing Role: Measures current on +48 V PA supply rail; comparator triggers shutdown before thermal runaway occurs (response time < 0.5 µs). Use Value: Enables direct sensing at PA drain voltage (up to +80 V) without level shifters or optocouplers, improving system reliability and reducing latency. |
| Industrial Motor Drive Phase Current Sensing | Server PSU Overcurrent Detection |
Use Scenario: Low-side phase current measurement in 3-phase inverters driving HVAC compressors or pumps operating from 200–400 V DC bus. IC Role / Device Role / Timing Role: Senses current through shunt placed between IGBT emitter and GND; OUT feeds ADC, CMPOUT drives gate driver disable logic. Use Value: Maintains 3.5% accuracy despite large common-mode transients (dV/dt > 10 kV/µs) due to 120 dB CMRR and robust input stage design. | Use Scenario: Monitoring 12 V and 54 V output rails in redundant server power supplies to detect cable shorts or board-level overloads. IC Role / Device Role / Timing Role: High-side sensing on each output rail; latched CMPOUT signals fault to BMC controller; RESET synchronized to power-cycle sequence. Use Value: Provides deterministic fault capture and hold during brown-out conditions where microcontroller may be unresponsive, ensuring fail-safe shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ASA+T | Fixed 100 V/V gain, 2.7–5.5 V supply only, no integrated comparator or reference | Requires external comparator and reference for overcurrent protection; limited to low-voltage systems | Select when only analog output is needed and supply is strictly ≤5.5 V; not suitable for automotive or 12–48 V industrial rails. |
| INA286AIDR | 100 V/V gain, -14 to +80 V common-mode, 2.7–18 V supply, no comparator or reference | Needs external comparator circuitry; lacks latch/reset functionality and internal reference | Choose when highest DC accuracy (±0.2% gain error) is prioritized over integrated protection logic; adds design complexity for fault handling. |
Compared with MAX40056ASA+T and INA286AIDR, the TSC202IDT uniquely integrates comparator latching, internal 0.6 V reference, and AEC-Q100 qualification - enabling single-chip overcurrent protection in automotive and industrial 12–48 V systems without external components.
Availability
TSC202IDT is available at Aetrix Electronics and suitable for automotive battery monitoring, telecom power amplifier protection, and industrial motor drive phase current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSC202IDT 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 silicon solutions for automotive, industrial, and power management applications.
The TSC202IDT belongs to ST's high-voltage current sense amplifier product line, engineered specifically for robust overcurrent protection in automotive-grade and harsh-environment power systems.
FAQ
What is the minimum shunt voltage the TSC202IDT can accurately measure?
The TSC202IDT is specified for reliable operation above 20 mV differential input (Vsense). Below this threshold, input bias current nonlinearity and transconductance degradation cause increased offset error - resulting in up to 0.4 V output error at Vsense = 0 mV. For precision low-current sensing, select a higher-gain variant or add external amplification.
How does the RESET pin function during power-up?
When RESET is left open or grounded, the comparator initializes in a known reset state as VCC rises above 1.5 V (POR threshold). If RESET is held high during power-up, CMPOUT powers up high and must be actively pulled low via RESET to enable latched fault detection - a critical timing consideration in fail-safe designs.
Can the TSC202IDT be used for low-side current sensing?
Yes - the TSC202IDT supports both high-side and low-side configurations. In low-side mode, VIN− connects to system ground and VIN+ connects 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 reduced versus high-side use.
What is the maximum capacitive load the OUT pin can drive?
The OUT pin tolerates up to 10 nF capacitive load without sustained oscillation, as verified in stability testing. Driving larger loads (e.g., ADC input capacitance + PCB trace) requires a series resistor (≥10 Ω) or buffer to prevent peaking or ringing - especially critical in high-noise motor drive environments.
TSC202IDT 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:
- Single-Ended
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 300 kHz
- Current - Input Bias:
- 5 pA
- 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
TSC202IDT FAQ
1.How can I place an order for TSC202IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC202IDT 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 TSC202IDT reliable?
The price and inventory of TSC202IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC202IDT is usually 5 days.
3.What payment methods are accepted for TSC202IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC202IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC202IDT?
TSC202IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC202IDT 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 TSC202IDT?
For technical support, including TSC202IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC202IDT requirements.
6.How does Aetrix verify that TSC202IDT is sourced from the original manufacturer or authorized distributors?
All TSC202IDT 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 TSC202IDT meets industry standards.
7.What is the process for return or replacement of TSC202IDT?
All TSC202IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSC202IDT, 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 TSC202IDT part is unused and in its original packaging.
Return procedure for TSC202IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSC202IDT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
