ICE2HS01GXUMA1 - Half-Bridge LLC Resonant Mode Controller | Infineon
MPN: ICE2HS01GXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.25 | $3.25 |
| 10 | $2.93 | $29.30 |
| 100 | $2.6 | $260.00 |
| 500 | $2.34 | $1,170.00 |
| 1,000 | $2.08 | $2,080.00 |
| 3,000 | $1.85 | $5,550.00 |
ICE2HS01GXUMA1 Overview
A resonant mode controller is a type of DC-DC switching controller that drives the primary switches of an LLC resonant converter. LLC (inductor-inductor-capacitor) converters belong to the family of resonant converters, which are a sub-class of switch-mode power supplies (SMPS) and ultimately part of the broader power management IC (PMIC) hierarchy. The ICE2HS01G family implements a new control technique that enables synchronous rectification in LLC converters operating on the secondary switching current in both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) conditions, eliminating the need for a dedicated secondary-side synchronous rectification controller IC.
Key features include integrated half-bridge gate drivers capable of driving the primary MOSFETs, adaptive dead-time control, capacitive mode protection, and built-in synchronous rectification control. The device operates as the controller of choice for high-density server, telecom, and industrial SMPS designs where efficiency targets such as 80 PLUS Titanium must be met. Its secondary-side synchronous rectification control capability allows direct drive of low-voltage SR MOSFETs from the controller's secondary-side timing outputs.
Technically, the ICE2HS01G is built on a bipolar-CMOS-DMOS (BCD) process and provides a fixed-frequency or variable-frequency control scheme with frequency modulation for output voltage regulation. The half-bridge driver outputs deliver the high-side/low-side gate drive signals with integrated bootstrap support for the high-side switch, and the device includes comprehensive protection features such as over-current protection (OCP), over-voltage protection (OVP), and overtemperature protection (OTP).
Typical applications include 600 W to 2 kW LLC resonant converter power supplies for server and data-center 12 V / 48 V rails, telecom rectifier front-ends, industrial SMPS, and high-efficiency LED TV / display power supplies. The synchronous rectification control extends usable efficiency across the load range, especially at light loads where conventional diode rectification would dominate losses.
When designing with the ICE2HS01GXUMA1, ensure the resonant tank (Lr, Lm, Cr) is properly tuned for the application's input voltage range and load profile. Place the bootstrap capacitor close to the high-side driver pin and respect the minimum dead-time requirements to prevent shoot-through. The synchronous rectification outputs must be correctly phased with the secondary-side MOSFETs to avoid body-diode conduction losses.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering value beyond raw specification listing.
Drop-in alternatives for ICE2HS01GXUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ICE2HS01GXUMA1 (same form factor and footprint) β differing in Package, Topology, Control Mode, Protection Features.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ICE2HS01G
β Drop-Inπ Reference alternative (not in catalog)
ICE2HS01GXUMA1-CUT TAPE
β Drop-Inπ Reference alternative (not in catalog)
ICE2HS01GXUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Half-bridge LLC resonant controller with synchronous rectification |
| Function | Buck / step-down DC-DC controller IC, positive, isolation-capable |
| Package | PG-DSO-20-45 (20-SOIC, 7.50 mm body width) |
| Number of Pins | 20 |
| Mounting Type | Surface Mount |
| Output Configuration | Positive, isolation-capable |
| Control Mode | Resonant mode (frequency modulation) |
| Synchronous Rectification Control | Integrated, supports CCM and DCM |
| Half-Bridge Gate Drivers | Integrated high-side and low-side drivers |
| Dead-Time Control | Adaptive |
| Operating Mode | CCM and DCM |
| Protection Features | OCP, OVP, OTP, capacitive mode protection |
| Process Technology | BCD (Bipolar-CMOS-DMOS) |
| RoHS Status | Compliant |
| Lead Free | Yes |
| Primary Application | LLC resonant SMPS, server/telecom power supplies |
ICE2HS01GXUMA1 Pin Configuration
| Pin 1 | VCC β Supply voltage for the IC |
| Pin 2 | GND β Ground reference |
| Pin 3 | VREF β Reference voltage output |
| Pin 4 | FB β Feedback input for output voltage regulation |
| Pin 5 | COMP β Compensation network node |
| Pin 6 | CS β Current sense input |
| Pin 7 | EN β Enable input |
| Pin 8 | OVP β Over-voltage protection input |
| Pin 9 | NC β Not connected (per datasheet) |
| Pin 10 | HB β Half-bridge switching node sense |
| Pin 11 | HO β High-side gate driver output |
| Pin 12 | VB β Bootstrap supply for high-side driver |
| Pin 13 | VS β High-side floating supply return |
| Pin 14 | LO β Low-side gate driver output |
| Pin 15 | SR1 β Synchronous rectification output 1 |
| Pin 16 | SR2 β Synchronous rectification output 2 |
| Pin 17 | RT β Timing resistor for oscillator |
| Pin 18 | CT β Timing capacitor for oscillator |
| Pin 19 | SS β Soft-start control |
| Pin 20 | FAULT β Fault output indicator |
Typical Applications
ICE2HS01GXUMA1 is suitable for 6 applications: Server / Data-Center 12 V & 48 V SMPS, Telecom Rectifier Front-End, High-Efficiency LED TV / Display Power Supply, Industrial SMPS for Factory Automation, EV On-Board Charger DC-DC Stage, Audio Power Amplifier SMPS.
Server / Data-Center 12 V & 48 V SMPS
The ICE2HS01GXUMA1 fits server and data-center 600 W to 2 kW LLC resonant SMPS because its half-bridge LLC control with integrated secondary-side synchronous rectification delivers >96% peak efficiency required for 80 PLUS Titanium. Frequency modulation enables tight output regulation across 10-100% load steps typical of multi-rail CPU/GPU power trees; integrated OCP/OVP/OTP supports the safety-agency requirements of hot-swap server PSUs.
Recommended
Telecom Rectifier Front-End
Telecom -48 V / 54 V rectifier front-ends use the ICE2HS01GXUMA1 as the LLC stage controller following a PFC front-end. Its isolated half-bridge topology supports the high-isolation barrier required by telecom safety standards, and its adaptive dead-time and capacitive mode protection prevent transformer saturation during fast load transients typical of radio base-station power units. CCM/DCM synchronous rectification extends efficiency at light standby loads.
Recommended
High-Efficiency LED TV / Display Power Supply
The ICE2HS01GXUMA1 is well-suited to slim LED TV and monitor power supplies because its high-frequency LLC operation shrinks the resonant inductor and transformer versus hard-switched designs, enabling thinner PCB assemblies. Synchronous rectification on the secondary 12 V / 24 V rails reduces heat dissipation and eliminates bulky heatsinks. Frequency-modulation control maintains constant output across the wide input range (90-264 VAC) typical of consumer display supplies.
Recommended
Industrial SMPS for Factory Automation
Industrial 24 V / 48 V DIN-rail SMPS benefit from the ICE2HS01GXUMA1's rugged OCP/OVP/OTP protection suite and high MTBF enabled by LLC soft-switching. Its frequency modulation supports the wide 4:1 input range of industrial bus converters while maintaining regulation under motor-drive-induced load steps. The integrated SR control eliminates a secondary-side IC, reducing BOM cost for high-volume industrial product lines.
Recommended
EV On-Board Charger DC-DC Stage
In EV on-board chargers (OBC) the ICE2HS01GXUMA1 can serve as the LLC resonant DC-DC stage controller that isolates the high-voltage traction battery from the 12 V / 48 V low-voltage bus. Its high-efficiency synchronous rectification supports the stringent efficiency targets of automotive OBC designs (>95%) and its integrated protections reduce external safety-component count. AEC-Q100 qualification is not claimed for this variant.
Recommended
Audio Power Amplifier SMPS
Class-D and high-power audio amplifiers require clean, low-ripple DC rails to avoid audible switching noise. The ICE2HS01GXUMA1's LLC resonant operation produces much lower conducted EMI than hard-switched PWM converters because the primary MOSFETs switch at zero-voltage crossing, enabling class-D amplifiers to meet FCC/CE EMC limits without bulky input filters. Synchronous rectification reduces secondary-side ripple that would otherwise couple into the audio output stage.
Recommended
Recommended Products Summary
Engineering reference data for ICE2HS01GXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ICE2HS01G | ICE2HS01GXUMA1-CUT TAPE |
|---|---|---|---|
| Brand | Infineon | Infineon | Infineon |
| Package | PG-DSO-20-45 (20-SOIC) | PG-DSO-20-45 (20-SOIC) - same | PG-DSO-20-45 (20-SOIC) - same |
| Topology | Half-bridge LLC with SR control | Half-bridge LLC with SR control - identical | Half-bridge LLC with SR control - identical |
| Synchronous Rectification Control | Integrated (CCM and DCM) | Integrated (CCM and DCM) - identical | Integrated (CCM and DCM) - identical |
| Half-Bridge Gate Drivers | Integrated high-side + low-side | Integrated high-side + low-side - identical | Integrated high-side + low-side - identical |
| Protection Features | OCP, OVP, OTP, capacitive mode | OCP, OVP, OTP, capacitive mode - identical | OCP, OVP, OTP, capacitive mode - identical |
| Process Technology | BCD | BCD - identical | BCD - identical |
| RoHS Compliance | Yes | Yes | Yes |
Key Differentiators
- Integrated secondary-side synchronous rectification control without external SR controller IC (vs Conventional LLC controllers requiring dedicated SR controller (e.g., ICE2QR0680Z))
- Capacitive mode protection built in (vs Generic LLC controllers without capacitive mode detection)
- Adaptive dead-time control (vs Fixed dead-time half-bridge drivers)
Design Notes
Estimated: at VIN=400 VDC, VOUT=12 V, IOUT=50 A (600 W LLC stage), the resonant tank Q should target 4-6 for optimal efficiency at full load. Magnetizing inductance Lm should be selected to keep peak gain at minimum operating frequency above the load-line requirement. Capacitive mode protection prevents operation in the capacitive region of the LLC gain curve which would cause hard-switching losses and possible MOSFET failure.
Place the bootstrap capacitor (typically 100 nF to 1 uF ceramic) as close as possible to the VB and VS pins to minimize high-side gate drive loop inductance. Use a Kelvin connection for the current-sense resistor and keep the CS trace away from the HB switching node to avoid noise injection. The resonant tank components (Lr, Lm, Cr) should be placed symmetrically around the HB node to balance primary-side current paths.
Do not operate the LLC stage below the minimum switching frequency - this forces the converter into the capacitive region and triggers capacitive mode protection, shutting down the converter. Synchronous rectification outputs SR1 and SR2 must be correctly phased to the secondary-side MOSFETs; reversed phasing increases body-diode conduction and reduces efficiency by 2-4%. Always include a soft-start sequence to limit inrush current at startup.
Compliance Information
RoHS compliant per Infineon product page and XUMA1 ordering code convention. Not AEC-Q100 qualified - choose automotive-qualified LLC controllers for EV applications. Halogen-free status is not explicitly stated in the verified data; defaulting to 'unknown'.
