Защита усилителя динамика upc1237 устраняет шум динамика

Описание: @radal05
Speaker amplifier protection upc1237 Menghilangkan suara Jedug speaker
link pembeliaan:
1.IC UPC1237HA C1237HA C1237 uPC1237 Power Amplifier Speaker Protector
https://tokopedia.link/T1iTFYedlyb
https://shp.ee/trag6rk
2.PCB Speaker Protector Stereo IC UPC1237 Proteksi Protektor Pengaman
https://tokopedia.link/4IXsQDydlyb

PROTECTOR IC FOR STEREO
POWER AMPLIFIER
 DESCRIPTION
UTC UPC1237 is a semiconductor integrated circuit designed
for protecting stereo power amplifiers and loudspeakers.
 FEATURES
Wide supply voltage range of 25V~60V
Contain a relay driver. (Max. I6=80mA)
Work as either latching function or automatic resetting function
by using pin 3. (In both overload detection and output offset
detection, either function can be selected.)
Single power supply
Built-in output offset detection function. Both positive and
negative output offset can be detected through pin2
AC voltage can be detected
Time delay function. The time delay form amplifier power ON to
relay ON can be freely set by selecting external components
The moment that amplifier-power is turned off, it can make relay
broken OFF and then loudspeaker disconnected for amplifier to
prevent a shock off noise

 PIN DESCRIPTION
PIN NO. PIN NAME DESCRIPTION
1 PIN1 Input pin of overload detector
2 PIN2 Input pin of output offset detector
3 PIN3 Input pin of switch for latch/automatic-reset
4 PIN4 Input pin of AC-OFF detector
5 PIN5 GND
6 PIN6 Output pin of relay driver
7 PIN7 Input pin of VCC ON mute, setting delay time
8 PIN8 VCC

 ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER SYMBOL RATINGS UNIT
Power Supply Voltage VCC 60 V
Pin 4 Maximum Voltage V4(MAX) 10 V
Pin 7 Maximum Voltage V7(MAX) 8 V
Pin 8 Maximum Voltage V8(MAX) 8 V
Pin 1 Maximum Current I1(MAX) 3 mA
Pin 2 Maximum Current I2(MAX) ±3 mA
Pin 6 Maximum Current I6(MAX) 80 mA
Power Dissipation (TA=75°C) PD 320 mW
Operational Temperature TOPR -20 ~ +75 °C
Storage Temperature TSTG -40 ~ +125 °C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
 RECOMMENDED OPERATING CONDITION
PARAMETER SYMBOL RATINGS UNIT
Supply Voltage VCC 25 ~ 60 V
 ELECTRICAL CHARACTERISTICS (VCC=45V, TA=25°C, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Pin 1 Threshold Voltage VTH 1 Level to invert at Pin 6 0.58 0.67 0.76 V
Pin 2 Positive Threshold Voltage VTH +2 Level to invert at Pin 6 0.54 0.62 0.70 V
Pin 2 Negative Threshold Voltage VTH -2 Level to invert at Pin 6 -0.12 -0.17 -0.23 V
Pin 4 Threshold Voltage VTH 4 Level to invert at Pin 6 0.60 0.74 0.90 V
Pin 8 Reference Voltage V8 RL=1.5kΩ 3.0 3.4 3.8 V

00:00 Radal05
00:12 Speaker ampli protektor
01:50 Tes speaker Protektor
02:10 Menghilangkan suara jeduk
03:40 Tes Short
05:05 Skematik
08:40 Cara pemasangan Relay