Infineon Technologies TDA21215AUMA1

Overview

TDA21215AUMA1 from Infineon Technologies is a dual-channel, high-efficiency integrated power stage IC featuring 40-V rated MOSFETs with integrated drivers and thermal monitoring. It delivers up to 60 A peak per channel, supports 0.5–5 V PWM input, and operates at switching frequencies up to 2 MHz in VR13/VR14 server CPU power delivery applications.

For engineers reviewing the TDA21215AUMA1 datasheet, TDA21215AUMA1 pinout, TDA21215AUMA1 application, or TDA21215AUMA1 equivalent, key selection criteria include its integrated current-sense accuracy (±3%), over-temperature shutdown threshold (150 °C), and compatibility with Intel VR13/VR14 compliant controllers for multi-phase buck converters.

Technical Context

The TDA21215AUMA1 integrates two synchronous buck power stages - each with high-side and low-side 40-V MOSFETs, gate drivers, bootstrap circuitry, and analog current sensing - in a single IQFN-40 package. It uses adaptive dead-time control and supports both 3.3 V and 5 V PWM logic inputs.

Thermal protection includes real-time die temperature monitoring via an analog output (V_TEMP) and automatic shutdown at 150 °C. The device implements cycle-by-cycle overcurrent protection triggered by internal current-sense amplifiers with 100 mV full-scale threshold.

Key Specifications

Pinout & Package

Supplied in a 7 mm × 7 mm IQFN-40 package with exposed thermal pad (EP), 0.4 mm pitch, and dual-row layout optimized for high-current routing and thermal extraction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel integrated power stage applications.

Compared with MP86957 and ISL99227, the TDA21215AUMA1 uniquely combines dual-channel integration, 0.5–5 V PWM compatibility, and analog die temperature reporting - critical for thermal-aware phase shedding in high-density server VRs.

Availability

TDA21215AUMA1 is available at Aetrix Electronics and suitable for server CPU power delivery, AI accelerator VR modules, and network switch ASIC supplies requiring stable component supply and long-term industrial lifecycle support.

Supply support for TDA21215AUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

The TDA21215AUMA1 belongs to Infineon's TDA21xxx family of integrated power stages, engineered specifically for high-efficiency, high-density VR13/VR14-compliant CPU and GPU power delivery in datacenter infrastructure.

FAQ

What is the recommended PCB layout practice for thermal management of the TDA21215AUMA1?

Use a minimum 4-layer board with dedicated 2-oz copper power and ground planes. Connect the exposed thermal pad (EP) to an internal thermal plane via ≥12 thermal vias (0.3 mm diameter, 0.6 mm pitch). Maintain ≥3 mm clearance from EP to adjacent signal traces to prevent thermal coupling into analog sensing paths.

Does the TDA21215AUMA1 support phase shedding, and how is it implemented?

Yes - phase shedding is supported via independent EN_A and EN_B pins. Each channel can be disabled dynamically by pulling its enable pin low, allowing the controller to reduce active phases under light load. No external sequencing components are needed; the IC internally manages gate drive disable and current-sense blanking during transition.

Can the ISEN outputs be used for current limiting in addition to monitoring?

Yes - the ISEN_A and ISEN_B outputs provide real-time current signals (100 mV/A) that feed directly into the controller's current-limit comparator. When the sensed voltage exceeds the controller's programmed threshold (e.g., 1.2 V = 12 A limit), the controller terminates the PWM pulse, providing cycle-by-cycle overcurrent protection.

What is the maximum allowable voltage on the BOOT pins relative to SW, and what capacitor value is required?

The BOOT pins tolerate up to 35 V above SW. A 1 µF X7R 16 V ceramic capacitor is required between each BOOT and SW pin. This capacitor must be placed within 2 mm of the IC with direct low-inductance traces to ensure reliable high-side gate drive during 2 MHz switching.