IRS2093MTRPBF - 4-Ch Class D Audio Driver, 100V, 0.6A | Infineon
MPN: IRS2093MTRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.92 | $4.92 |
| 10 | $4.42 | $44.20 |
| 100 | $3.93 | $393.00 |
| 500 | $3.54 | $1,770.00 |
| 1,000 | $3.15 | $3,150.00 |
IRS2093MTRPBF Overview
A Class D audio amplifier is a switching amplifier topology that uses pulse-width modulation (PWM) to drive a power stage at high efficiency (typically 85-95%) rather than dissipating energy as heat like a linear (Class A/B) amplifier. The IRS2093MTRPBF sits in the controller/driver tier of the Class D hierarchy - it contains the modulator and gate drivers but requires external power MOSFETs and an output LC filter. This makes it part of the broader audio amplifier IC family within power management and amplifier IC categories.
Key features include four independent floating analog inputs with PWM modulators, integrated high-side/low-side gate drivers capable of 0.6 A sink/source, programmable dead-time to prevent shoot-through, programmable over-current protection (OCP) with auto-recovery, under-voltage lockout (UVLO) for both VCC and VBS rails, and a protection control interface pin (SD/OTW) for fault reporting and thermal warning. The 48-pin MLPQ package provides an exposed thermal pad to dissipate gate-driver losses.
Architecture-wise, the IRS2093MTRPBF uses a bipolar CMOS-DMOS (BCD) high-voltage process that allows the floating high-side driver to operate up to 100 V while the low-side and logic sections operate from lower rails. Each channel's modulator accepts a small-signal analog input and generates complementary PWM outputs at the gate driver stage, with dead-time inserted between the high-side and low-side switches to prevent cross-conduction.
Typical applications include 4-channel home theater amplifiers, 2.1/4.1 subwoofer-and-satellite systems, multi-channel professional audio amplifiers, automotive head-unit amplifier stages, and powered studio monitor speakers. The wide 100 V bus rating supports high-power designs (several hundred watts per channel into 4 ohms) when paired with appropriately rated external MOSFETs.
Design consideration: the IRS2093MTRPBF requires a carefully designed output LC reconstruction filter per channel - component values depend on switching frequency (typically 350-500 kHz), load impedance, and desired audio bandwidth. Incorrect filter design is the most common source of EMI, THD degradation, or instability in Class D designs using this driver.
This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations not found in the manufacturer datasheet alone, giving engineers a faster path from selection to working prototype.
Drop-in alternatives for IRS2093MTRPBF β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IRS2093MPBF
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
IRS2093MTRPBF Maximum Ratings & Electrical Characteristics
| Function | 4-Channel Class D Audio Amplifier Driver |
| Topology Support | Half-Bridge / Full-Bridge |
| Number of Channels | 4 |
| Gate Drive Current (typ.) | 0.6 A |
| Maximum Bus Voltage (V+) | 100 V |
| Modulator Type | Analog-input PWM |
| Dead-Time Control | Programmable |
| Over-Current Protection | Programmable, auto-recovery |
| Under-Voltage Lockout | Yes (VCC and VBS) |
| Thermal Warning / Shutdown | Yes (OTW/SD pin) |
| Operating Temperature Range | -40C to +125C |
| Package | PG-VQFN-48 (MLPQ-48) with exposed pad |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Lead-Free / RoHS | Yes (PBF suffix) |
| External Power MOSFETs Required | Yes (per channel, half- or full-bridge) |
IRS2093MTRPBF pg-vqfn-48 (mlpq-48) with exposed pad Pin Configuration Guide
Pin configuration for IRS2093MTRPBF (pg-vqfn-48 (mlpq-48) with exposed pad package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for IRS2093MTRPBF.
Refer to the datasheet for full pin configuration.
Typical Applications
IRS2093MTRPBF is suitable for 6 applications: 4-Channel Home Theater Amplifier, 2.1 Subwoofer and Satellite Amplifier, Powered Studio Monitor, Automotive Multi-Channel Amplifier, Professional PA / Live Sound Amplifier, Compact Desktop / Bookshelf Amplifier.
4-Channel Home Theater Amplifier
The IRS2093MTRPBF's 4 independent channels, 100 V bus rating, and 0.6 A gate-drive current make it a strong fit for multi-channel home-theater receivers driving 5.1 or 7.1 satellite and center-channel speakers. Each channel can be configured as half-bridge into an LC reconstruction filter, with the modulator's floating analog input accepting line-level audio directly from the preamp stage. Programmable over-current protection guards the external MOSFETs against speaker short-circuits, while the OTW/SD pin can mute downstream stages during a fault. Versus a Class A/B implementation, a single IRS2093MTRPBF-based design typically achieves 88-92% efficiency, eliminating the need for large heatsinks on each channel.
Recommended
2.1 Subwoofer and Satellite Amplifier
In a 2.1 (or 4.1) subwoofer-plus-satellite configuration, the IRS2093MTRPBF can drive a bridged subwoofer channel at high power while running two satellite channels as half-bridges from the same IC. With the 100 V bus rating, a full-bridge subwoofer channel can deliver several hundred watts into 4 ohms. The programmable dead-time control minimizes shoot-through losses and THD, critical for subwoofer fidelity where distortion directly colors bass response. The same device handles all four channels with synchronized PWM, eliminating channel-to-channel timing skew that can occur when using separate driver ICs.
Recommended
Powered Studio Monitor
The IRS2093MTRPBF suits near-field and midfield powered studio monitors that demand low THD and flat frequency response. The analog-input PWM modulator preserves the phase linearity and low-noise floor required for mixing decisions, while the 0.6 A gate-drive current enables fast switching edges that reduce dead-time-induced distortion. Each monitor typically uses 2 channels in full-bridge BTL configuration for the woofer and tweeter, leaving the remaining 2 channels of the IRS2093MTRPBF available for a second monitor enclosure or for bi-amp/trimode designs.
Recommended
Automotive Multi-Channel Amplifier
The IRS2093MTRPBF's -40C to +125C operating range and 100 V bus rating suit automotive head-unit and external amplifier designs where 4 channels of amplification are needed in a compact footprint. The exposed thermal pad of the MLPQ-48 package handles gate-driver dissipation efficiently, while the integrated protection features (programmable OCP, UVLO on VCC/VBS, OTW/SD fault pin) reduce external component count - critical for cost-sensitive automotive designs. The part pairs naturally with Infineon automotive-grade MOSFETs from the OptiMOS family for full automotive-grade amplifier modules.
Recommended
Professional PA / Live Sound Amplifier
Professional touring PA amplifiers require high power density, robust protection, and channel-to-channel consistency. The IRS2093MTRPBF integrates 4 channels with synchronized PWM, simplifying multi-channel rack amplifiers where phase coherence between cabinets matters. The programmable over-current protection with auto-recovery handles the abusive loads common in live sound (shorted speaker cables, impedance dips at resonant frequencies) without latching off the entire amplifier. The high-side floating supply accepts bus voltages up to 100 V, supporting 2-ohm loads at several hundred watts per channel.
Recommended
Compact Desktop / Bookshelf Amplifier
For small-form-factor consumer amplifiers such as desktop speakers, soundbars, and bookshelf powered monitors, the IRS2093MTRPBF's 4 channels in a single MLPQ-48 package minimize PCB area. Designers can route 2 channels as full-bridge BTL for a stereo pair, leaving 2 channels available for headphone-driver or subwoofer-output expansion. The high efficiency (>85%) means even sealed enclosures stay cool without forced-air cooling, important for consumer products where acoustic noise from fans is unacceptable. The lead-free PBF suffix supports RoHS-compliant consumer products for worldwide retail.
Recommended
Recommended Products Summary
Engineering reference data for IRS2093MTRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRS2093MPBF | IRS2092STRPBF |
|---|---|---|---|
| Package | PG-VQFN-48 (MLPQ-48) | PG-VQFN-48 (MLPQ-48) - same | SOIC-16 - different |
| Brand | Infineon | Infineon | Infineon |
| Channels | 4 | 4 | 2 |
| Gate Drive Current | 0.6 A | 0.6 A | 0.6 A |
| Maximum Bus Voltage | 100 V | 100 V | 100 V |
| Dead-Time Control | Programmable | Programmable | Programmable |
| Over-Current Protection | Programmable, auto-recovery | Programmable, auto-recovery | Programmable, auto-recovery |
| Packaging | Tape & Reel (TR) | Tube | Tape & Reel (TR) |
Key Differentiators
- 4 channels in a single IC with 100 V bus rating (vs IRS2092STRPBF (2-channel, SOIC-16))
- Integrated programmable over-current protection with auto-recovery (vs IRS2092STRPBF)
- MLPQ-48 exposed thermal pad (vs IRS2092STRPBF (SOIC-16))
Design Notes
Layout the V+ bus bulk capacitor, half-bridge MOSFETs, and gate-drive loop area as small and tight as possible to minimize parasitic inductance. Keep the high-side bootstrap capacitor (between VBS and VS pins) within 5 mm of the IC pins to ensure stable high-side supply and prevent shoot-through. Use a 4-layer PCB with a dedicated ground plane directly under the IC and output stage; the exposed thermal pad of the MLPQ-48 must be soldered to a copper pour of at least 1 square inch for adequate gate-driver heat dissipation.
Per the IRS2093 datasheet, each VCC pin needs a local 100 nF ceramic decoupling capacitor placed within 2-3 mm of the pin, plus a bulk 10-47 uF electrolytic or tantalum on the V+ rail. The VBS bootstrap capacitor (typically 1 uF ceramic) must be recharged every PWM cycle - undersizing it causes the high-side MOSFET to lose gate drive at high duty cycle, resulting in distortion or complete dropout. For 100 V bus designs, select a VBS bootstrap diode with 200 V or higher reverse voltage rating and fast recovery (<100 ns).
Estimated: at a 400 kHz switching frequency with 1 uF bootstrap capacitor and 100 nA quiescent current draw on VBS, the bootstrap capacitor droop per PWM cycle is approximately 0.4 mV - well within tolerance. However, at low audio frequencies (<100 Hz) where duty cycle approaches 95% on one rail, the recharge time may be insufficient, causing high-side gate voltage sag. If this occurs, reduce the maximum duty cycle (longer dead-time), increase the bootstrap capacitance to 2.2-4.7 uF, or switch to a constant-charge bootstrap circuit. Also, ensure the OCset resistor (programmable OCP) is correctly sized for your MOSFET pair's RDS(on) and peak current - too low trips on transients, too high fails to protect.
Compliance Information
Lead-free PBF suffix confirms RoHS compliance per Infineon product marking convention. AEC-Q100 automotive qualification is not stated in the verified web data; for automotive designs, confirm with Infineon or use an explicitly AEC-Q100 qualified driver.
