ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC AMP CLASS AB QUAD 25W 36HSOP
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class AB
- Output Type：4-Channel (Quad)
- Max Output Power x Channels @ Load：25W x 4 @ 4Ohm
- Voltage - Supply：6V ~ 18V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：36-HSOP
- Package / Case：36-BSSOP (0.433", 11.00mm Width) Exposed Pad
- Operating Temperature：-
- Grade：-
- Qualification：-
Download product information
Overview
The TDF8546TH/N2ZJ is a complementary quad Bridge-Tied Load (BTL) audio power amplifier intended for automotive applications. It operates at a battery voltage as low as 6 V, making it suitable for stop/start-car operation. The device features a best efficiency mode with full I2C-bus controlled diagnostics and uses a patented switch technique to reduce switching distortion. It utilizes a complementary DMOS output stage in a Silicon-On-Insulator (SOI) based BCD process. The amplifier can drive 2 Ω and 4 Ω loads, offering maximum output power of 45 W per channel into a 4 Ω load at 15.2 V supply.
Feature Summary
- Stop/start-car prepared: keeps operating without audible disturbance during engine start at a battery voltage as low as 6 V
- New best efficiency mode with patented low switching distortion
- Operates in either legacy (non-I2C-bus) or I2C-bus modes (3.3 V and 5 V compliant)
- Speaker fault detection and start-up diagnostics with load detection
Applications
- Automotive applications
- Stop/start-car operation
- Audio power amplification
Procurement Notes
Verify the specific package type HSOP36 matches your PCB footprint requirements. Confirm that the I2C bus address configuration via pin ADSEL aligns with your system design. Ensure thermal management solutions account for the junction-to-ambient thermal resistance specified in the datasheet. Check RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when designing automotive audio systems requiring high efficiency and robust diagnostics. Consider the SOI-based BCD process for latch-up immunity and channel isolation. Evaluate the need for I2C control versus legacy mode based on system complexity. Verify compatibility with 2 Ω and 4 Ω speaker loads for optimal performance.
Part Context
The TDF8546 series includes variants like TDF8546J and TDF8546JS. The TH variant specifically denotes the HSOP36 package. This family represents a new generation of complementary quad BTL audio power amplifiers designed for automotive use. The TH version offers surface mount convenience with heatsink capabilities.
Replacement Considerations
TDF8546J/N2ZU
FAQ
What is the minimum battery voltage for operation?
The TDF8546TH/N2ZJ can operate at a battery voltage as low as 6 V.
Does the amplifier support I2C bus control?
Yes, it operates in I2C-bus modes compliant with 3.3 V and 5 V logic levels.
