PAMC1311BQDWVRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments PAMC1311BQDWVRQ1 is an AEC-Q100 qualified reinforced isolated amplifier designed for high-impedance voltage sensing up to 2 V input in automotive systems. It provides galvanic isolation protecting low-voltage control circuits from high-voltage measurement domains. Available in a small-outline package for compact automotive PCB integration.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PAMC1311BQDWVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade 1 qualified for automotive reliability across -40°C to 125°C temperature range
- Reinforced galvanic isolation protecting MCU circuits from high-voltage sensing domains up to 2 V input
- High-impedance differential input minimizing loading on measured voltage nodes in battery management systems
- Small-outline package enabling compact PCB layout in space-constrained automotive modules
- Isolation amplifier topology providing accurate linear signal transfer across the isolation barrier
Applications
The PAMC1311BQDWVRQ1 is designed for automotive battery management systems where individual cell voltages up to 2 V must be measured accurately while galvanically isolating the high-voltage stack from the low-voltage microcontroller domain. It is also used in electric vehicle motor drive inverters for isolated current and voltage sensing of high-voltage DC buses. The AEC-Q100 qualification makes it suitable for ADAS power supply monitoring and EV powertrain diagnostic circuits that require long-term reliability across harsh thermal environments.
Specifications
| Date Of Intro | 2018-04-01 |
| YTEOL | 0 |
| Amplifier Type | ISOLATION AMPLIFIER |
| Screening Level | AEC-Q100 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the reinforced isolation in the PAMC1311BQDWVRQ1 protect automotive microcontrollers from high-voltage domains?
The PAMC1311BQDWVRQ1 uses reinforced galvanic isolation to create a complete electrical barrier between the high-voltage sensing side, where inputs handle up to 2 V differential signals from battery cells, and the low-voltage signal output connected to the vehicle MCU. This prevents destructive transients from propagating across the isolation boundary in AEC-Q100 Grade 1 qualified designs.
For which automotive battery cell voltage ranges is the PAMC1311BQDWVRQ1 best suited?
The device accepts high-impedance differential inputs up to 2 V, making it ideal for individual lithium-ion or lithium iron phosphate cell voltage sensing in 12 V to 800 V automotive battery packs. Its AEC-Q100 certification and -40°C to 125°C operating range ensure reliable measurement across the full automotive temperature profile.
What package does the PAMC1311BQDWVRQ1 use, and how does it affect integration into tight automotive PCB layouts?
The PAMC1311BQDWVRQ1 is supplied in a small-outline (SOIC-style) DWV package with 16 pins, enabling a compact footprint suitable for high-density automotive battery management unit boards. The surface-mount package supports automated pick-and-place assembly and reflow soldering compatible with standard automotive PCB processes.
When would an automotive design prefer the PAMC1311BQDWVRQ1 over a non-isolated differential amplifier?
In systems where the voltage sensing node floats above chassis ground by tens or hundreds of volts, a non-isolated amplifier would expose the MCU to dangerous common-mode voltages, risking device damage or data corruption. The PAMC1311BQDWVRQ1 isolates the 2 V input signal, so the MCU only sees a low-voltage output while the dangerous potential is safely confined to the sensing side, meeting AEC-Q100 automotive safety requirements.
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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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