PAC1952T-2E/4MX Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PAC1952T-2E/4MX is a dual-channel low-side power monitor with I2C/SMBus interface supporting bus voltages up to 32 V in a 16-pin VQFN package. It provides 11-bit current and voltage sensing with 2 programmable alert outputs for power management applications. From $1.85 in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- PAC1952T-2E/4MX Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0700(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
- Dual-channel 11-bit low-side current and power monitoring with 32 V maximum bus voltage for high-voltage rail supervision
- I2C/SMBus interface with 2 programmable alert outputs enabling host-driven power management and fault detection without additional logic
- Compact 16-pin VQFN (4x4 mm) package with RoHS-compliant e3 moisture sensitivity rating for space-constrained power monitoring designs
Applications
The PAC1952T-2E/4MX is ideal for server power supply units, industrial motor drives, and battery management systems that need accurate dual-channel current and power monitoring across rails up to 32 V. Its I2C/SMBus interface integrates directly with system management controllers in data center equipment and telecom boards where energy profiling and over-current alerting are mandatory. The small VQFN footprint makes it a practical fit for portable industrial instruments and embedded power analysis 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 | 2 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| 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 is the maximum bus voltage and how many channels does the PAC1952T-2E/4MX monitor?
The PAC1952T-2E/4MX supports a maximum bus voltage of 32 V and monitors 2 independent low-side current channels simultaneously. Each channel delivers 11-bit resolution measurements via its I2C/SMBus interface, enabling precise power accounting on dual-rail systems with a single device.
How do the 2 alert outputs on PAC1952T-2E/4MX help protect a power rail design?
The 2 programmable alert outputs can be configured with user-defined over-current or over-power thresholds on each monitored channel. When a threshold is exceeded, the device asserts an alert pin that can interrupt a host microcontroller within microseconds, allowing the system to shut down or reduce load before damage occurs to power conversion components.
In which package is the PAC1952T-2E/4MX available and what are its physical dimensions?
The PAC1952T-2E/4MX is housed in a 16-pin VQFN (very thin quad flat no-lead) package measuring 4 mm x 4 mm with a 0.5 mm pin pitch, a compact footprint that fits easily on space-constrained server blade or embedded industrial controller PCBs alongside the power conversion ICs it monitors.
How does PAC1952T-2E/4MX compare to single-channel monitors for dual-rail power designs?
Using a single PAC1952T-2E/4MX to monitor 2 rails versus deploying 2 single-channel monitors reduces BOM count by 1 device, saves at least 4 mm x 4 mm of board area, shares one I2C address on the bus, and cuts assembly cost, making it the preferred choice when monitoring exactly 2 power channels at up to 32 V.
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