PAC1941T-1E/4MX Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PAC1941T-1E/4MX is a single-channel power monitor IC with accumulator, operating from 2.7 V to 5.5 V in a 16-pin VQFN package over -40°C to 125°C. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- PAC1941T-1E/4MX Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3420(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel power monitor with energy accumulator for precise real-time power and energy measurement in embedded systems
- Wide 2.7 V to 5.5 V supply range compatible with 3.3 V and 5 V system rails commonly used in industrial and consumer designs
- Extended -40°C to 125°C operating temperature enabling reliable deployment in automotive and harsh industrial environments
- Compact 16-pin VQFN (4 mm x 4 mm) package minimizing PCB area while offering full power monitoring functionality
- RoHS-compliant (e3 JEDEC code) construction meeting global environmental and regulatory standards
Applications
The PAC1941T-1E/4MX is designed for power management and energy monitoring in servers, industrial controllers, telecom equipment, and battery-powered systems where accurate single-channel power consumption tracking is required. Its accumulator function enables cumulative energy measurement over time, making it ideal for applications like smart metering, power budget enforcement in embedded computing, and IoT node power profiling. The extended temperature range and VQFN package support compact, thermally robust designs in automotive electronics and harsh-environment industrial modules.
Specifications
| Manufacturer Package Code | VQFN-16 |
| Factory Lead Time | 10Weeks |
| YTEOL | 23 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Current-Max (Isup) | 0.495mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the PAC1941T-1E/4MX support, and how does this affect system integration?
The PAC1941T-1E/4MX operates from 2.7 V to 5.5 V, making it directly compatible with 3.3 V and 5 V digital system rails without requiring additional level shifting or voltage regulation. This broad range simplifies integration in mixed-voltage embedded systems, industrial controllers, and battery-powered IoT devices.
How does the energy accumulator in the PAC1941T-1E/4MX benefit power monitoring applications?
The built-in energy accumulator continuously integrates power measurements over time, providing a running total of energy consumption in watt-hours or joules without requiring constant host processor intervention. This offloads computational burden from the main CPU and enables precise energy budgeting in data center servers, telecom blades, and battery-managed embedded systems.
What is the operating temperature range of the PAC1941T-1E/4MX, and which harsh-environment applications can it support?
The PAC1941T-1E/4MX is rated from -40°C to 125°C, covering the full automotive and extended industrial temperature range. This makes it suitable for under-hood automotive power monitoring modules, outdoor industrial equipment, and high-ambient-temperature telecom installations where standard 0°C to 70°C commercial-grade ICs would fail.
What package does the PAC1941T-1E/4MX use, and how does it compare in board space to other power monitor packages?
The PAC1941T-1E/4MX uses a 16-pin VQFN (Quad Flat No-Lead) package, approximately 4 mm x 4 mm, which is significantly more compact than equivalent SOIC-16 or TSSOP-16 packages. The exposed pad also improves thermal dissipation, making this package ideal for compact power monitoring circuits on dense PCBs in portable and embedded applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3420 | $0.34 |
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