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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSC888CILT

Name: TSC888CILT
Brand: STMicroelectronics
SKU: TSC888CILT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSC888CILT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: SC-74A, SOT-753

Datasheet:: TSC888CILT.pdf

Description:: IC CURR SENSE 1 CIRCUIT SOT23-5

Quantity:: RFQ Add To RFQ list

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Inventory:102,610

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Product details

Overview

TSC888CILT from STMicroelectronics is a high-side current sense amplifier with fixed 100 V/V gain, operating across 2.8 V to 24 V input common-mode voltage and 4 V to 24 V supply range, consuming ≤1 mA quiescent current in SOT23-5 package; used for precision shunt-based current monitoring in DC motor control and photovoltaic system power stages.

For engineers reviewing the TSC888CILT datasheet, TSC888CILT pinout, TSC888CILT application, or TSC888CILT equivalent, key selection criteria include its independent V_CM/V_CC operation, ±6% total output accuracy, 95 dB CMR, buffered rail-to-rail–capable output, and compatibility with high-side sensing where V_CM exceeds V_CC.

Technical Context

The TSC888CILT implements a high-side current sensing architecture with fully differential input stage referenced to ground, enabling accurate measurement of small shunt voltages (e.g., 50 mV) while rejecting common-mode transients up to 24 V. Its internal 100 V/V gain is laser-trimmed and unchangeable.

It features rail-to-rail output stage capable of sourcing/sinking 1 mA with VOH ≤1 V and VOL ≤100 mV, and maintains 95 dB supply voltage rejection (SVR) and 95 dB common-mode rejection (CMR) over full operating temperature (−40°C to +85°C) and supply range.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	100 V/V - fixed, laser-trimmed, no external resistor required
Input CM Range	2.8 V to 24 V - enables sensing on 3.3 V/5 V/12 V rails powered from 5 V_sb
Supply Range	4 V to 24 V - allows V_CC tie to V_p or separate low-voltage rail
Quiescent Current	≤1 mA - minimizes burden on auxiliary supplies in always-on systems
Output Accuracy	±6% - includes gain error, offset, and linearity over temperature
CMR / SVR	95 dB - rejects noise from switching power rails and supply ripple
Operating Temp	−40°C to +85°C - qualified for industrial and computing environments

Pinout & Package

SOT23-5 plastic package (ECOPACK®, lead-free, JEDEC-compliant), 1.45 mm height, 2.8 mm × 2.6 mm footprint, thermal resistance R_thJA = 250 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
V_p	Analog input (+)	Connects to high-side of shunt; carries full load current into device
V_m	Analog input (−)	Connects to low-side of shunt; completes differential sense path
Gnd	Power reference	Ground return for supply and output; must be low-impedance
V_cc	Positive supply	Independent of V_CM; can be tied to V_p or separate 5 V rail
Out	Analog output	Buffered, ground-referenced voltage = 100 × (V_p − V_m)

Key Features

Feature	Design Value
Independent V_CM/V_CC	Enables high-side sensing at 24 V while powering from 5 V, eliminating level-shifting circuitry
Fixed 100 V/V gain	Removes external gain-setting resistors and associated layout sensitivity and drift
Low 1 mA supply current	Reduces self-heating and supports energy-sensitive standby modes in servers and notebooks
95 dB CMR	Maintains accuracy in noisy SMPS environments with fast dV/dt on power rails
SOT23-5 footprint	Minimizes PCB area and thermal mass; compatible with standard pick-and-place equipment

Applications

Desktop & Server SMPS

Photovoltaic Systems

Use Scenario: Real-time current monitoring of 12 V/5 V CPU VRM output rails in dual-supply server motherboards.

IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt ΔV to ground-referenced analog signal for ADC input.

Use Value: Enables precise load-current telemetry without disturbing ground plane integrity or requiring isolated amplifiers.

Use Scenario: String-level current supervision in solar microinverters with 30–60 V DC input.

IC Role / Device Role / Timing Role: High-side shunt monitor feeding protection logic and MPPT controller feedback loop.

Use Value: Supports >24 V common-mode operation while powered from local 5 V bias rail, reducing BOM count.

Battery Chargers

DC Motor Control

Use Scenario: Charge current regulation in multi-cell Li-ion fast chargers with 16–20 V intermediate bus.

IC Role / Device Role / Timing Role: Precision current feedback element in constant-current loop of synchronous buck charger IC.

Use Value: ±6% output accuracy ensures tight charge termination and prevents cell overcurrent stress.

Use Scenario: Phase current sensing in 24 V brushed DC motor drives for industrial actuators.

IC Role / Device Role / Timing Role: High-side current amplifier driving analog input of motor control MCU's ADC.

Use Value: 95 dB CMR suppresses PWM-induced noise during commutation, improving torque stability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current sense amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA240A1IDR	20 V/V gain, 80 V/V max, 120 kHz BW, ±20 µV offset, SOIC-8	Higher precision (±0.2% gain error), wider bandwidth, but larger package and higher cost	Select when <±0.5% gain accuracy or >100 kHz response required; not drop-in due to pinout and gain mismatch
MAX4080TASA+	100 V/V gain, 2.7–76 V supply, 100 kHz BW, SOIC-8	Wider supply range (up to 76 V), higher ESD rating (8 kV HBM), but requires external V_REF for bipolar output	Select for >24 V bus monitoring or harsh ESD environments; output polarity differs (inverting vs. non-inverting)

Compared with INA240A1IDR and MAX4080TASA+, the TSC888CILT offers lowest cost and smallest footprint for 100 V/V fixed-gain applications below 24 V common-mode, with minimal external components and proven reliability in computing power delivery.

Availability

TSC888CILT is available at Aetrix Electronics and suitable for desktop/server SMPS, photovoltaic systems, battery chargers, and DC motor control requiring stable component supply across industrial temperature range and long-term production continuity.

Supply support for TSC888CILT 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, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

The TSC888 belongs to ST's precision analog current sensing product line, engineered specifically for cost-sensitive, space-constrained high-side monitoring in computing and renewable energy power conversion systems.

FAQ

What is the maximum allowable differential input voltage (V_p − V_m) for TSC888CILT?

The absolute maximum differential input voltage is ±2 V, per Table 2. Operation beyond ±2 V risks permanent damage. For normal sensing, typical use cases keep |V_p − V_m| ≤100 mV to maintain ±6% output accuracy and avoid saturation. The device is optimized for low-value shunts (e.g., 5–20 mΩ) at currents up to ~5 A.

Can V_CC be connected directly to V_p in a high-side configuration?

Yes - the datasheet explicitly recommends connecting V_CC to V_p when the supply rail matches the sensed bus voltage (e.g., 12 V bus → 12 V V_CC). This eliminates need for auxiliary bias supply and simplifies layout. Ensure V_CC remains within 4–24 V and that V_m stays ≥2.8 V above GND to stay within common-mode range.

Does TSC888CILT support bidirectional current sensing?

No - the TSC888CILT is unidirectional. Its output voltage increases with positive (V_p > V_m) differential input and saturates near GND for negative inputs. It cannot resolve direction or magnitude of reverse current. For bidirectional sensing, ST's TSC2010 or TI's INA226 would be appropriate alternatives.

Is the output of TSC888CILT rail-to-rail, and what is its drive capability?

The output is rail-to-rail capable under light load (<1 mA), with VOH ≤1 V (vs. V_CC) and VOL ≤100 mV (vs. GND) at I_OUT = ±1 mA. Short-circuit current is ±2 mA. For driving ADCs or op-amp inputs, a series 100 Ω resistor is recommended to prevent instability due to capacitive loading.

TSC888CILT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Current Sense

Number of Circuits:: 1

Output Type:: -

Slew Rate:: -

Gain Bandwidth Product:: -

-3db Bandwidth:: -

Current - Input Bias:: 5.5 µA

Voltage - Input Offset:: -

Current - Supply:: 1mA

Current - Output / Channel:: 2 mA

Voltage - Supply Span (Min):: 4 V

Voltage - Supply Span (Max):: 24 V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

TSC888CILT FAQ

1.How can I place an order for TSC888CILT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSC888CILT 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 TSC888CILT reliable?

The price and inventory of TSC888CILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC888CILT is usually 5 days.

3.What payment methods are accepted for TSC888CILT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC888CILT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSC888CILT?

TSC888CILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSC888CILT 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 TSC888CILT?

For technical support, including TSC888CILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC888CILT requirements.

6.How does Aetrix verify that TSC888CILT is sourced from the original manufacturer or authorized distributors?

All TSC888CILT 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 TSC888CILT meets industry standards.

7.What is the process for return or replacement of TSC888CILT?

All TSC888CILT units undergo pre-shipment inspection (PSI). If there is an issue with TSC888CILT, 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 TSC888CILT part is unused and in its original packaging.

Return procedure for TSC888CILT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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