AD52068 provides parallel BTL (Mono) application, and it can deliver 40W into 4Ω loudspeaker at 24V supply voltage. The adjustable power limit function allows user to set a voltage rail lower than half of 5V to limit the amount of current through the speaker.

Part Number: AD52068-QG28NRR

Function: 2x20W Stereo Class-D Audio Amplifier with Power Limit

Package: E-TSSOP-28L type

Manufacturer: ESMT ( Elite Semiconductor Microelectronics Technology )

Images :

Description

The AD52068 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from 4.5V~26V supply voltage and analog circuit operates at 5V supply voltage. It can deliver 20W/CH output power into 8Ω loudspeaker within 1% THD+N at 24V supply voltage and without external heat sink when playing music

Pinout:

Features

1.  Single supply voltage 4.5V ~ 26V for loudspeaker driver Built-in LDO output 5V for others

2. Loudspeaker power from 24V supply
(1) BTL Mode: 20W/CH into 8 @<1% THD+N
(2) PBTL Mode: 40W/CH into 4 @<10% THD+N

3. Loudspeaker power from 12V supply BTL Mode: 10W/CH into 8 @10% THD+N

4. 88% efficient Class-D operation eliminates need for heat sink

5.  Differential inputs

6. Four selectable, fixed gain settings

7. Internal oscillator

8. Short-Circuit protection with auto recovery option

9. Under-Voltage detection

10. Over-Voltage protection

Block diagram

Other data sheets are available within the file: AD5-2068

AD52068 Datasheet PDF Download

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Part Number: YD7388

Function: Quad Bridge Car Radio Amplifier

Package: HZIP25B

Manufacturer: E-Youda ( http://www.e-youda.com )

Images :

Description

This is 25W four-channel (BTL) audio amplifier circuit. The YD7388 is a class AB Audio Power Amplifier. It allows a rail to rail output voltage swing with no need of bootstrap capacitors for the fully complementary PNP/NPN output configuration.  The YD-7388 is suitable for high end car radio applications.

The circuit characteristics are as follows:

Output power: Po = 25W × 4 (Vcc = 14.4V, BTL, RL = 4Ω, THD = 10%);

Four-channel BTL circuits are used, no external output capacitor, Using HZIP25B power package.

Pinout:

Features

1. High Output Power@ VCC=14.4V, f=1kHz, RL=4 Ω:
(1) 4 x 41W Max.
(2) 4 x 25W @THD=10%

2. All four channels adopt BTL circuit, no external output capacitor is needed;

3. With standby and mute functions;

4. The gain is fixed (Gv=26dB), and there are few peripheral components;

5. Built-in overvoltage protection, short circuit protection and thermal protection;

Block diagram

Other data sheets are available within the file: YD7388

YD7388 Datasheet PDF Download

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TDA7388 PDF

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