AN7199 Panasonic Semiconductor, AN7199 Datasheet - Page 17

• Manufacturer Part Number: AN7199
• Description: Dual 20 W BTL power IC for car audio
• Manufacturer: Panasonic Semiconductor

ICs for Audio Common Use
[2] Application note (continued)
12. Precautions on misuse (continued)
Technical Information (continued)
Application Circuit Example
Ch.1 Out ( )
Ch.1 Out ( )
3) Destruction mode for the AN7198Z, AN7199Z
Ch.1 GND
(1) GND-open short-circuit to GND
(2) Short-circuit to V
(3) V
found that the destruction occurs under special conditions.
The AN7198Z, AN7199Z are the power ICs with high breakdown withstanding voltage but it has been
IC is open, or short-circuit to GND when the GND terminal of the IC is over 0.7 V higher than the short-
circuited output terminal.
occurs.
with a short-circuit resistor which does not actuate the protection circuit. The power GND terminal
current may exceed 10 A and the wire melts down since the current capacity of Au wire is exceeded.
CC
Short-circuit of the output terminal to the GND terminal of power supply when GND terminal of the
At that time, if V
If short-circuit to V
Parasitic device is created everywhere and the circuit destruction takes place.
3
4
2
GND reverse connection
CC
CC
of the plus and minus side output terminals at the same time
CC
more than 16 V and a voltage is also applied to STB terminal, then the destruction
fault occurs on both the plus and minus side output terminals at the same time
14
13
15
Ch.2 GND
Ch.2 Out ( )
Ch.2 Out ( )
AN7199Z
17