사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Current Sense |
| SensingMethod | High/Low-Side |
| Voltage-Input | 0V ~ 36V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 14-TSSOP (0.173, 4.40mm Width) |
개요
Description
INA303A1IPWR is TI’s high-side current-sense amplifier. It measures the voltage drop across a shunt resistor in the power path and converts it to a precise output voltage proportional to current, enabling accurate monitoring and protection in power-management circuits. Key points:
- Wide input/common-mode range lets you sense high-side currents without moving the measurement to a low-side ADC.
- Low offset and fast response improve accuracy and protection timing.
- Typically powered from a low-voltage supply and used with external shunts for high-voltage applications.
- A1 indicates the industrial temperature grade; IPWR denotes the package type.
Common applications: motor control, DC-DC converters, battery-management, solar/inverter systems, and overcurrent/load monitoring.
For exact numbers (supply range, gain, output swing, temperature range, package pinout), consult the TI INA303A1 datasheet.
- Wide input/common-mode range lets you sense high-side currents without moving the measurement to a low-side ADC.
- Low offset and fast response improve accuracy and protection timing.
- Typically powered from a low-voltage supply and used with external shunts for high-voltage applications.
- A1 indicates the industrial temperature grade; IPWR denotes the package type.
Common applications: motor control, DC-DC converters, battery-management, solar/inverter systems, and overcurrent/load monitoring.
For exact numbers (supply range, gain, output swing, temperature range, package pinout), consult the TI INA303A1 datasheet.
Features
INA303A1IPWR features (concise):
- High-side current-sense monitor: differential input across a sense resistor with an amplified output.
- Built-in reference and comparator: provides an alert/FAULT indication when an overcurrent condition occurs.
- Analog output and fault output: easy integration with ADCs and MCU logic (open-drain alert).
- Wide supply and common-mode range: suitable for high-side sensing in automotive/industrial applications.
- Low offset, high precision, and good temperature stability with low quiescent current.
- Fast response time for protection and monitoring.
- Flexible thresholds: trip point adjustable with external components (via the reference network).
- Package and accessibility: compact 8-pin package, Pb-free, applicable to space-constrained designs (A1PWR variant).
Note: For exact electrical specs (voltage ranges, gain, offset, timing, and pinout), please refer to the TI datasheet for INA303A1IPWR.
- High-side current-sense monitor: differential input across a sense resistor with an amplified output.
- Built-in reference and comparator: provides an alert/FAULT indication when an overcurrent condition occurs.
- Analog output and fault output: easy integration with ADCs and MCU logic (open-drain alert).
- Wide supply and common-mode range: suitable for high-side sensing in automotive/industrial applications.
- Low offset, high precision, and good temperature stability with low quiescent current.
- Fast response time for protection and monitoring.
- Flexible thresholds: trip point adjustable with external components (via the reference network).
- Package and accessibility: compact 8-pin package, Pb-free, applicable to space-constrained designs (A1PWR variant).
Note: For exact electrical specs (voltage ranges, gain, offset, timing, and pinout), please refer to the TI datasheet for INA303A1IPWR.
Pinout
Pin count: 8 pins (MSOP-8/SO-8 package).
Function: High-side current-sense amplifier. It senses the voltage across a shunt resistor via VIN+ and VIN−, amplifies it, and provides a single-ended output (VOUT) referenced to REF, powered from V+ with GND.
Function: High-side current-sense amplifier. It senses the voltage across a shunt resistor via VIN+ and VIN−, amplifies it, and provides a single-ended output (VOUT) referenced to REF, powered from V+ with GND.
Manufacturer
Manufacturer: Texas Instruments (TI).
What kind of company: TI is a US-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits and related semiconductor products used across a wide range of electronics and power-management applications.
What kind of company: TI is a US-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits and related semiconductor products used across a wide range of electronics and power-management applications.
Application
INA303A1IPWR is used for precise current sensing in places where you measure across a shunt resistor with wide common-mode voltage. Typical applications include:
- High-side current sensing in DC-DC converters, regulators, and power adapters
- Battery management systems and Li‑ion charger circuits
- Automotive power electronics (motor drives, inverters, protection/fault detection)
- Industrial and consumer motor control and power metering
- Protective monitoring for power supplies and smart power/distribution modules
It enables accurate current measurement with compact footprint across high/low-side configurations.
- High-side current sensing in DC-DC converters, regulators, and power adapters
- Battery management systems and Li‑ion charger circuits
- Automotive power electronics (motor drives, inverters, protection/fault detection)
- Industrial and consumer motor control and power metering
- Protective monitoring for power supplies and smart power/distribution modules
It enables accurate current measurement with compact footprint across high/low-side configurations.
Package
8-pin VSSOP (Very Small Outline Package) SMT package.
