PINA253A2IPW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments PINA253A2IPW is a bidirectional current sense amplifier with 80 V common-mode range, PWM rejection, and a precision integrated shunt resistor. It supports both low-side and high-side current sensing in a small outline package. Designed for motor drive, power supply, and industrial current monitoring applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- PINA253A2IPW Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PINA253A2IPW?
- 80 V common-mode range supports low-side and high-side current sensing
- Bidirectional current measurement captures both source and sink current
- PWM rejection circuitry eliminates switching noise interference in motor drive designs
- Precision integrated shunt resistor reduces BOM count and board area
- Small outline package for compact power management PCB layouts
What is PINA253A2IPW used for?
The PINA253A2IPW is ideal for industrial motor drive systems that require accurate bidirectional current sensing in noisy PWM switching environments up to 80 V. Power supply designers use it for high-side and low-side output current monitoring with reduced external component count due to the integrated precision shunt resistor. Battery charging systems and DC-DC converters also leverage its bidirectional capability to track charge and discharge current simultaneously.
What are the specifications of PINA253A2IPW?
| YTEOL | 0 |
| Analog IC - Other Type | POWER SUPPLY SUPPORT CIRCUIT |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PINA253A2IPW datasheet?
PINA253A2IPW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PINA253A2IPW?
Compatible alternatives and drop-in replacements for PINA253A2IPW:
Frequently Asked Questions
How does PINA253A2IPW's PWM rejection feature improve accuracy in motor drive applications?
The PINA253A2IPW includes built-in PWM rejection circuitry that filters switching transients typically ranging from 1 kHz to 100 kHz in motor drive designs. This prevents false current readings during high-frequency PWM switching, enabling accurate current sense measurements within 1% even when the motor drive operates at 48 V with duty cycles from 10% to 90%.
What advantages does the integrated shunt resistor in PINA253A2IPW offer over discrete shunt designs?
The precision integrated shunt resistor in PINA253A2IPW eliminates the need for an external sense resistor, reducing PCB area by up to 30% and BOM cost by 1 to 2 components. It maintains tighter tolerance than most discrete 1% shunt resistors, improving current measurement accuracy across the -40°C to 125°C operating range.
Can PINA253A2IPW be used for both high-side and low-side current sensing in an 80 V power system?
Yes, the PINA253A2IPW supports both high-side and low-side configurations across its full 80 V common-mode range. High-side placement allows sensing without interrupting the ground path, while low-side sensing offers simpler circuit integration. Both configurations support bidirectional current measurement making it suitable for 48 V to 80 V battery and motor control designs with 4-quadrant operation.
What package does PINA253A2IPW use, and how many pins does it have?
The PINA253A2IPW uses a small outline package (TSSOP or similar SOT family) with multiple pins supporting differential input, output, and power supply connections. The PW suffix indicates a TSSOP package variant, which typically provides 14 to 16 pins for flexible signal routing in current sense amplifier circuits across 5 V to 80 V supply rails.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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