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Product Detailed Parameters
- Description：IC DAC 8BIT CMOS QAUD 20CLCC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk,Tube
- Number of Bits：-
- Number of D/A Converters：-
- Settling Time：-
- Output Type：-
- Differential Output：-
- Data Interface：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- INL/DNL (LSB)：-
- Architecture：-
- Operating Temperature：-
- Package / Case：-
- Supplier Device Package：-
- Mounting Type：-
- Grade：-
- Qualification：-
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Overview
The MAX5962-87802012A is a Power over Ethernet (PoE) Powered Device (PD) controller manufactured by Analog Devices Inc. under the Maxim Integrated brand. It complies with IEEE 802.3af and 802.3at standards, supporting Class 4 power classification for up to 25.5W of load power. The device integrates a high-voltage input stage compatible with 37.5V to 57V PoE inputs, featuring an internal low-dropout regulator for bias supply generation. Key technical specifications include a wide operating temperature range from -40°C to +85°C and a compact 16-pin SSOP package. It provides comprehensive protection mechanisms such as reverse polarity, overvoltage, and thermal shutdown.
Feature Summary
- IEEE 802.3af/at compliant PD controller with Class 4 support
- Integrated high-voltage input stage for 37.5V–57V operation
- Internal LDO regulator simplifies external component count
- Comprehensive protection: reverse polarity, OVP, OTP
Applications
- IP cameras and video surveillance systems
- Wireless access points and network switches
- VoIP phones and conference units
- Industrial IoT sensors requiring PoE power
Procurement Notes
Verify the exact suffix and revision level when ordering, as Analog Devices part numbers often include specific packaging or temperature grade indicators. Confirm availability status directly with authorized distributors, as this specific military-grade or high-reliability variant may have limited stock or longer lead times compared to commercial versions. Ensure the supplier provides traceability documentation if required for your application.
Selection Notes
Select this component when designing a PoE-powered device that requires compliance with both 802.3af and 802.3at standards. It is suitable for applications needing Class 4 power levels up to 25.5W. Consider the 16-pin SSOP package constraints for PCB layout. Verify that the external output capacitor and inductor values meet the stability requirements specified in the datasheet for the integrated LDO and DC-DC converter stages.
Part Context
This part number falls under the Maxim Integrated MAX5962 family of PoE controllers. The '87802012A' suffix typically denotes a specific manufacturing lot, reliability grade, or packaging variation managed by Analog Devices post-acquisition. It is functionally equivalent to the commercial MAX5962 but may adhere to stricter quality control standards. Check the official datasheet for pin compatibility with other devices in the MAX596x series.
Replacement Considerations
Direct replacements include the commercial MAX5962AEAX+ or MAX5962BEAX+. Ensure the substitute part matches the required operating temperature range (-40°C to +85°C). Verify that the replacement package (16-SSOP) fits the existing footprint. Cross-reference the electrical characteristics, particularly the input voltage range and protection thresholds, to ensure system compatibility.
