仕様
| 属性 | 値 |
| Supplier | STMicroelectronics |
| Package / Case | Tray |
| Part Status | Active |
| Frequency | AM, FM |
| Modulationor Protocol | AM, FM |
| Applications | AM/FM Car Radios |
| Current - Receiving | 175mA |
| Data Interface | I²C |
| Antenna Connector | PCB, Surface Mount |
| Voltage - Supply | 4.7V ~ 5.2V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概要
Description
TDA7786C is a four-channel automotive audio power amplifier IC from NXP/Philips. It is designed to drive car loudspeakers in head-unit or automotive amplifier modules, using the vehicle’s power supply.
Key features (typical):
- Four amplifier channels with BTL outputs
- Built-in protection: overcurrent, short-circuit to GND/Vcc, and thermal shutdown
- Mute/standby control and diagnostic/status outputs
- Automotive-suitable power/decoupling characteristics and turn-on sequencing to minimize pops
Typical usage:
- Connect four speaker outputs to speakers (commonly 4-ohm or 8-ohm loads)
- Feed analog inputs from a preamp or DAC
- Provide proper supply decoupling and heat sinking
- Use sequence control to avoid pops at turn-on
Note: Check the datasheet for exact pinout, electrical specifications, recommended external components, and application circuits for your specific package and variant.
Key features (typical):
- Four amplifier channels with BTL outputs
- Built-in protection: overcurrent, short-circuit to GND/Vcc, and thermal shutdown
- Mute/standby control and diagnostic/status outputs
- Automotive-suitable power/decoupling characteristics and turn-on sequencing to minimize pops
Typical usage:
- Connect four speaker outputs to speakers (commonly 4-ohm or 8-ohm loads)
- Feed analog inputs from a preamp or DAC
- Provide proper supply decoupling and heat sinking
- Use sequence control to avoid pops at turn-on
Note: Check the datasheet for exact pinout, electrical specifications, recommended external components, and application circuits for your specific package and variant.
Equivalent
Direct, pin-for-pin equivalents for TDA7786C aren’t published. Substitutes depend on function and specs. TDA7786C is a 4-channel car-audio amplifier; to propose closest equivalents I need your target specs: total output power per channel, supply voltage, package type, and required features (short-circuit/speaker protection). Share these (and country/distributor if needed) and I’ll provide cross-reference part numbers from NXP, ST, TI, etc.
Features
Key features of TDA7786C (NXP):
- Four-channel automotive audio power amplifier with bridge-tied outputs (BTL)
- Class-AB efficiency for high-fidelity car audio
- Stable into 2–8 Ω loads; suitable for car loudspeakers
- Output power scalable with supply and load (typical tens of watts total, per-channel depending on conditions)
- Comprehensive protection: overcurrent, short-circuit (to GND or Vcc), overtemperature, undervoltage
- Soft-start and mute/standby for pop-free power-up
- Standby/mute control pins; low quiescent current in standby
- Diagnostic/STATUS output for fault indication
- Automotive-grade robustness with wide supply/transient tolerance
- Integrated protections and diagnostics to minimize external components
- Four-channel automotive audio power amplifier with bridge-tied outputs (BTL)
- Class-AB efficiency for high-fidelity car audio
- Stable into 2–8 Ω loads; suitable for car loudspeakers
- Output power scalable with supply and load (typical tens of watts total, per-channel depending on conditions)
- Comprehensive protection: overcurrent, short-circuit (to GND or Vcc), overtemperature, undervoltage
- Soft-start and mute/standby for pop-free power-up
- Standby/mute control pins; low quiescent current in standby
- Diagnostic/STATUS output for fault indication
- Automotive-grade robustness with wide supply/transient tolerance
- Integrated protections and diagnostics to minimize external components
Pinout
- Pin count: 28 pins (SO-28/DIP-28 package).
- Function: Automotive audio power amplifier IC (quad-channel), providing four BTL outputs for car stereo speaker drive, with input stage and built-in protection.
- Function: Automotive audio power amplifier IC (quad-channel), providing four BTL outputs for car stereo speaker drive, with input stage and built-in protection.
Manufacturer
Manufacturer: NXP Semiconductors. It is a Dutch multinational semiconductor company that designs and manufactures integrated circuits and system solutions for automotive, industrial, and consumer electronics (originating from Philips Semiconductors).
Application
- Automotive audio systems (in-dash receivers, infotainment)
- Four-channel car amplifier for front/rear door speakers
- OEM and aftermarket car audio installations
- In-vehicle multimedia/hifi audio modules needing compact amplification
- Systems requiring built-in protection (thermal/short-circuit/overload) for automotive reliability
- Four-channel car amplifier for front/rear door speakers
- OEM and aftermarket car audio installations
- In-vehicle multimedia/hifi audio modules needing compact amplification
- Systems requiring built-in protection (thermal/short-circuit/overload) for automotive reliability
Package
TDA7786C comes in a 16-pin surface-mount package (SO-16 / PowerSSOP-16).
