Showing posts with label w. Show all posts
Showing posts with label w. Show all posts
Sunday, September 14, 2014
70 W power amplifier circuit
FEATURES:
- Very high output power, operating from a single low supply voltage
- Low power dissipation, when used for music signals
- Switches to low output power at too high case temperatures
- Few external components
- Fixed gain
- Differential inputs with high common mode rejection
- Mode select pin (on, mute and standby)
- Status I/O pin (class-H, class-B and fast mute)
- All switching levels with hysteresis
- Diagnostic pin with information about:
- Dynamic Distortion Detector (DDD)
- Any short-circuit at outputs
- Open load detector
- Temperature protection.
- No switch-on or switch-off plops
- Fast mute on supply voltage drops
- Quick start option (e.g. car-telephony/navigation)
- Low (delta) offset voltage at the outputs
- Load dump protection
- Short-circuit safe to ground, supply voltage and across the load
- Low power dissipation in any short-circuit condition
- Protected against electrostatic discharge
- Thermally protected
- Flexible leads.
GENERAL DESCRIPTION:
The TDA1562Q is a monolithic integrated 70 W/4 Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17-lead DIL-bent-SIL plastic power package. The device can be used for car audio systems (e.g. car, radio and boosters) as well as mains fed applications (e.g.midi/mini audio combinations and TV sound).
Circuit Diagram:
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| Circuit diagram 70 W power amplifier circuit |
Datasheet for TDA1562Q: Download
Wednesday, August 20, 2014
24 W BTL or 2 x 12 W stereo car radio power amplifier
GENERAL DESCRIPTION
The TDA1510AQ is a class-B integrated output amplifier encapsulated in a 13-lead single in-line (SlL) plastic power package. Developed primarily for car radio application, the device can also be used to drive low impedance loads (down to 1,6 Ω). With a supply voltage (VP) of 14,4 V, an output power of 24 W can be delivered into a 4 Ω Bridge Tied Load (BTL), or when used as a stereo amplifier, 2 × 12 W into 2 Ω or 2 × 7 W into 4 Ω.
Features
- Flexibility − stereo as well as mono BTL
- Low offset voltage at the output (important for BTL)
- Load dump protection
- A.C. short-circuit-safe to ground
- Low number, small sized external components
- Internal limiting of bandwidth for high frequencies
- High output power
- Large useable gain variation
- Good ripple rejection
- Thermal protection
- Low stand-by current possibility
- High reliability.
Circuit diagram:
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| BTL circuit car radio power amplifier |
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| Stereo Circuit car radio power amplifier |
Datasheet for TDA1510: Download
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