My Inquiry
My Account
STMicroelectronics TSC1021BIPT
- Part No.:
- TSC1021BIPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSC1021BIPT.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,382
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSC1021BIPT from STMicroelectronics is a high-side current sense amplifier with fixed 50 V/V gain, operating over 2.8 V to 30 V common-mode input range independent of 3.5–5.5 V supply, ±2.3 mV max input offset (−40 °C to 125 °C), ±2.5 % max total output error, and EMI filtering-used in automotive battery monitoring and industrial SMPS current sensing.
For engineers reviewing the TSC1021BIPT datasheet, TSC1021BIPT pinout, TSC1021BIPT application, or TSC1021BIPT equivalent, this page delivers verified specifications including common-mode survival up to −32 V/60 V, dVos/dT = 8 µV/°C, 800 kHz bandwidth, 7 µs settling time, and TSSOP8 package compatibility for space-constrained high-reliability designs.
Technical Context
The TSC1021BIPT implements a precision current-sense architecture with rail-to-rail output buffer and internal gain-setting resistors for 50 V/V operation. Its input stage withstands reversed-battery (−32 V) and load-dump (60 V) transients while maintaining accuracy across −40 °C to 125 °C.
It achieves 90–105 dB DC CMR and 80–95 dB SVR, enabling stable measurement in noisy automotive and telecom power rails. The device draws ≤300 µA supply current and features 50 nV/√Hz input noise at 1 kHz, supporting accurate low-current detection down to 10 mV sense voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | Fixed 50 V/V-enables direct scaling of 20 mV shunt drop to 1 V output for ADC interfacing without external gain stages. |
| Input Offset Voltage | ±2.3 mV max (−40 °C to 125 °C)-limits minimum resolvable current error to ~46 µA on 50 mΩ shunt. |
| Common-Mode Range | 2.8 V to 30 V independent of VCC-allows high-side sensing in 24 V industrial systems powered by 5 V logic rails. |
| Total Output Error | ±2.5 % max (−40 °C to 125 °C)-guarantees <±12.5 mV absolute error at 500 mV full-scale output. |
| Supply Current | ≤300 µA-supports always-on battery monitoring with sub-1.5 mW power budget at 5 V. |
| Bandwidth | 800 kHz-captures fast transient currents in switch-mode power supplies without phase lag distortion. |
| Settling Time | 7 µs to 1 %-ensures accurate pulse-current sampling in digital power control loops with >100 kHz update rates. |
Pinout & Package
Housed in a compact 3 mm × 4.4 mm TSSOP8 package with 0.65 mm pitch, the TSC1021BIPT supports automated assembly and thermal dissipation up to 120 °C/W junction-to-ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vm) | Analog input (low-side shunt node) | Current exits shunt here; referenced to GND for differential measurement-must be routed away from noisy ground returns. |
| 3 (Gnd) | Power supply reference | Primary ground return for VCC and output buffer; requires dedicated low-impedance path to system GND plane. |
| 4 (Out) | Analog output | Buffered, low-impedance voltage output (1 kΩ typical); drives ADC inputs or op-amp stages directly without external buffering. |
| 6 (VCC) | Positive supply | 3.5–5.5 V logic-compatible supply; decoupling capacitor (100 nF) required within 2 mm of pin for EMI immunity. |
| 8 (Vp) | Analog input (high-side shunt node) | Current enters shunt here; exposed to full common-mode voltage-requires high-voltage PCB clearance (>0.3 mm) per 30 V rating. |
Key Features
| Feature | Design Value |
|---|---|
| Reversed-battery protection | Withstands −32 V on Vp/Vm pins-eliminates need for external series diodes in automotive 12 V battery circuits. |
| Load-dump survival | Operates up to 60 V common-mode-meets ISO 7637-2 Pulse 5a requirements without external clamping. |
| EMI filtering | Integrated RF rejection network-reduces sensitivity to GSM/DC-DC switching noise without adding external RC filters. |
| Low temperature drift | dVos/dT = 8 µV/°C-limits offset shift to ±0.64 mV over 80 °C ambient swing, preserving calibration stability. |
| Output buffer | Drives ≥10 kΩ loads with <0.1 % gain error-enables direct connection to SAR ADCs without signal degradation. |
Applications
| Automotive Battery Monitoring | Notebook Power Management |
|---|---|
Use Scenario: Real-time monitoring of starter battery charge/discharge current in start-stop vehicles under harsh electrical conditions. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for microcontroller ADC sampling. Use Value: Survives −32 V reverse polarity and 60 V load-dump transients without latch-up or parameter shift, ensuring functional safety compliance. | Use Scenario: Accurate load current measurement in CPU/GPU VRM phases to enable dynamic power capping and thermal throttling. IC Role / Device Role / Timing Role: Precision current sensor feeding real-time feedback to digital PWM controllers via buffered analog output. Use Value: 50 nV/√Hz input noise and 800 kHz bandwidth capture fast load transients (<10 µs rise time) without aliasing or delay. |
| Industrial SMPS Current Sharing | Telecom 48 V Rectifier Monitoring |
Use Scenario: Matching output current between parallel-connected DC-DC modules in programmable power supplies. IC Role / Device Role / Timing Role: High-side sense amplifier providing isolated, temperature-stable current feedback to master controller. Use Value: ±2.5 % total output error over −40 °C to 125 °C ensures <±1.25 A mismatch at 50 A full scale, enabling tight current balance. | Use Scenario: Continuous monitoring of rectifier output current in -48 V telecom power systems with hot-swap capability. IC Role / Device Role / Timing Role: Fault-tolerant current sensor interfacing to protection ICs and telemetry processors via robust analog output. Use Value: 90–105 dB DC CMR rejects common-mode noise from adjacent high-current bus bars, preventing false overcurrent trips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1IDR | 20 V/V gain, 85 dB CMR, 2.7–5.5 V supply, SOIC-8 package | Lacks reversed-battery (−32 V) and load-dump (60 V) ratings; requires external protection for automotive use | Select when cost-sensitive industrial designs tolerate lower transient immunity and require wider supply flexibility. |
| TSC103IPT | 70 V max common-mode operating range, same 50 V/V gain, TSSOP8, −40 °C to 125 °C | Extends high-side sensing to 48 V telecom and 60 V EV charging systems beyond TSC1021BIPT's 30 V limit | Select when measuring currents in >30 V bus systems where TSC1021BIPT's 30 V common-mode ceiling is insufficient. |
Compared with INA240A1IDR and TSC103IPT, the TSC1021BIPT offers optimal balance of automotive-grade ruggedness (−32 V/60 V), precision (±2.3 mV offset), and compact TSSOP8 footprint-making it preferred for space-constrained 12/24 V vehicle subsystems requiring AEC-Q100-aligned performance without over-spec'ing voltage range.
Availability
TSC1021BIPT is available at Aetrix Electronics and suitable for automotive battery monitoring, notebook power management, and industrial SMPS current sharing requiring stable component supply across extended temperature and high-transient environments.
Supply support for TSC1021BIPT 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, delivering silicon solutions for automotive, industrial, and power management applications with emphasis on reliability and environmental compliance.
The TSC1021 belongs to ST's precision analog current sensing product line, engineered specifically for high-side measurement in electrically harsh environments-including automotive start-stop systems, telecom rectifiers, and industrial motor drives-where transient immunity and temperature stability are critical.
FAQ
What is the maximum common-mode voltage the TSC1021BIPT can withstand during normal operation?
The TSC1021BIPT operates continuously with input common-mode voltages from 2.8 V to 30 V, independent of its 3.5–5.5 V supply voltage. This allows accurate high-side current sensing in 24 V industrial buses or 12 V automotive systems-even when the shunt is placed between battery positive and load-without requiring level-shifting circuitry or isolated amplifiers.
Does the TSC1021BIPT require external gain-setting resistors?
No. The TSC1021BIPT integrates factory-trimmed resistors to provide a fixed 50 V/V gain-confirmed by the "B" suffix in the part number (TSC1021BIPT). This eliminates gain error from external resistor tolerance and temperature drift, reduces PCB area, and improves long-term accuracy stability versus discrete resistor-based configurations.
How does the TSC1021BIPT handle electromagnetic interference in automotive environments?
The TSC1021BIPT incorporates on-chip EMI filtering optimized for frequencies up to 1 GHz, validated per ISO 11452-4 bulk current injection testing. Combined with 90–105 dB DC CMR and 80–95 dB SVR, this suppresses noise coupling from alternators, ignition systems, and DC-DC converters-enabling reliable operation without external RC filters or ferrite beads in most automotive PCB layouts.
Can the TSC1021BIPT be used with a 3.3 V microcontroller ADC?
Yes. With 50 V/V gain and a typical 50 mV full-scale shunt voltage, the TSC1021BIPT outputs 2.5 V-well within the 0–3.3 V input range of most 3.3 V ADCs. Its buffered output drives 10 kΩ loads with <0.1 % gain error, and its 7 µs settling time supports sampling rates up to ~140 kHz, making it compatible with standard microcontroller ADC acquisition sequences without external signal conditioning.
TSC1021BIPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.45V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 800 kHz
- Current - Input Bias:
- 7 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 3.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TSC1021BIPT FAQ
1.How can I place an order for TSC1021BIPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC1021BIPT 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 TSC1021BIPT reliable?
The price and inventory of TSC1021BIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC1021BIPT is usually 5 days.
3.What payment methods are accepted for TSC1021BIPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC1021BIPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC1021BIPT?
TSC1021BIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC1021BIPT 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 TSC1021BIPT?
For technical support, including TSC1021BIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC1021BIPT requirements.
6.How does Aetrix verify that TSC1021BIPT is sourced from the original manufacturer or authorized distributors?
All TSC1021BIPT 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 TSC1021BIPT meets industry standards.
7.What is the process for return or replacement of TSC1021BIPT?
All TSC1021BIPT units undergo pre-shipment inspection (PSI). If there is an issue with TSC1021BIPT, 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 TSC1021BIPT part is unused and in its original packaging.
Return procedure for TSC1021BIPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSC1021BIPT 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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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…
