Overview
The TDF8546ATH/N1ZJ is a high-performance, I2C-bus controlled, 4-channel Class AB audio amplifier produced by NXP USA Inc. This component is designed for applications requiring robust audio output with advanced control and protection features. It is packaged in a 36-lead HSOP (Heatsink Small Outline Package) and is suitable for various automotive and industrial audio systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Supply Voltage (VP) | RL = 4 Ω | 6 | 14.4 | 18 | V |
| Quiescent Current (Iq) | No load; VP = 7 V | - | 190 | - | mA |
| Output Power (Po) | RL = 4 Ω | - | - | 25 | W |
| Off-State Current (Ioff) | VSTB = 0.4 V | - | 4 | 10 | μA |
| Package Type | - | - | - | - | HSOP36 |
| Mounting Type | - | - | - | - | Surface Mount |
| Packaging | - | - | - | - | Tape & Reel |
Key Features
- Independent enabling of thermal, clip, or load fault information on pin DIAG.
- All amplifier outputs are short-circuit proof to ground, supply voltage, and across the load (channel independent).
- Temperature-controlled gain reduction to prevent audio holes at high junction temperatures.
- Programmable low battery voltage detection to enable 7.5 V or 6 V minimum battery voltage operation.
- Overvoltage protection (load-dump safe up to VP = 50 V) with overvoltage pre-warning at 16 V.
- Loss-of-ground and open VP safe (minimum series resistance required).
Applications
The TDF8546ATH/N1ZJ is primarily used in automotive audio systems, industrial audio equipment, and other applications requiring high-quality, multi-channel audio amplification. Its robust design and advanced protection features make it suitable for environments where reliability and performance are critical.
Q & A
- What is the maximum output power of the TDF8546ATH/N1ZJ?
The maximum output power is 25 W per channel. - What is the operating supply voltage range for the TDF8546ATH/N1ZJ?
The operating supply voltage range is from 6 V to 18 V. - What type of package does the TDF8546ATH/N1ZJ come in?
The component is packaged in a 36-lead HSOP (Heatsink Small Outline Package). - Is the TDF8546ATH/N1ZJ short-circuit proof?
Yes, all amplifier outputs are short-circuit proof to ground, supply voltage, and across the load. - What is the quiescent current of the TDF8546ATH/N1ZJ?
The quiescent current is typically 190 mA at VP = 7 V. - Does the TDF8546ATH/N1ZJ have overvoltage protection?
Yes, it has overvoltage protection (load-dump safe up to VP = 50 V) with overvoltage pre-warning at 16 V. - Can the TDF8546ATH/N1ZJ operate at low battery voltages?
Yes, it supports programmable low battery voltage detection for 7.5 V or 6 V minimum battery voltage operation. - Is the TDF8546ATH/N1ZJ RoHS compliant?
No, the TDF8546ATH/N1ZJ is not RoHS compliant. - What is the mounting type of the TDF8546ATH/N1ZJ?
The mounting type is surface mount. - What is the packaging method for the TDF8546ATH/N1ZJ?
The packaging method is Tape & Reel.
