STK415-100-E Sanyo Semicon Device, STK415-100-E Datasheet - Page 10

• Manufacturer Part Number: STK415-100-E
• Description: 2-Channel Power Switching Audio Power IC
• Manufacturer: Sanyo Semicon Device

STK415-100 Series Stand-by control, Mute control, Load-short protection & DC
offset protection application
STK415-100 Series Application explanation
1
GND
+V H
+V L
-V H
-V L
*2 METAL PLATE CEMENT RESISTOR 0.22Ω±10%(5W)
*3 DIODE 3A/60V
Point.B
4
(2) Load short
detection part
-PRE
*3
5
STK415-100 series
+V L
1
STK415-100 series
*3
-V L
-V H
2 3
6
56kΩ
+OFF
SET
+V H
7
Tr1
-OFF
SET -Pre
4 5
6.8kΩ
OUT(+)
Point.C
Ch1
OUT Ch1
8
-V H
6 7 8 9 10 11 12 13 14
Load
Short
Protection
circuit
OUT(-)
+V H
56kΩ
Point.B
Ch1
9
6.8kΩ
Ch1+
OUT
*2
OUT(+)
Tr2
OUT
Ch1-
6.8kΩ
Ch2
10
6.8kΩ
Ch2+
OUT
OUT Ch2
*2
OUT(-)
OUT
Ch2- +Pre GND
Ch2
11
Point.C
+PRE
12
SUB
I2
SUB GND
Ch2 OUT
Ch1 OUT
13
15
Ch1
Stand-by Circuit
in Pre Driver IC
IN
GND
GND
Ch1
NF
16 17 18 19
ST-
BY
14
STK415-100-E
4.7kΩ
0.1μF
10kΩ
Ch2
0.1μF 10kΩ
82kΩ
82kΩ
NF
Ch1
15
IN
82kΩ
82kΩ
Ch2
IN
1kΩ
ΔV BE
22kΩ
SW transistor
Tr4
100kΩ
22μF
22μF
Ch1
NF
56kΩ
22μF
22μF
16
100kΩ
DC offset protection
1kΩ
Latch up
circuit
22kΩ
STBY
#17pin
reference voltage VST
56kΩ
(*4)
R2
17
ex) 3.3kΩ
-V CC
100
(*1) R30
kΩ
(*4) R2
Tr3
Tr5
100
kΩ
Ch2
18
NF
4.7kΩ (*3)
I1
Ch2
19
V1
IN
(3) Latch-up
Tr6
47μF
/10V
*1 Set the limiting resistor value R1 so that the voltage applied to the standby
circuit part
33kΩ
pin (pin 17) never exceeds the maximum rated value VST max.
Stand-by
Control
Mute
Control
I3
(4) DC offset
1kΩ
ex) 3.3kΩ
protection
(*1) R30
GND
2kΩ
Operate mode (VST OFF )≥ 2.5V
Stand-By mode (VST ON )< 0.6V (0V typ)
ST-BY
+5V
Stand-by Control
H: Operation Mode (+5V)
L: Stand-by Mode (0V)
Tr5
47μF
10kΩ
10kΩ
+5V
MUTE
PLAY
10kΩ
2.2kΩ
1) Stand-by control circuit part
H: Operation mode (+5V)
L: Stand-by mode (0V)
33kΩ
1kΩ
www.DataSheet4U.com
2kΩ
Ch2 IN
GND
Ch1 IN
Mute Control
H: Single Mute
L: Normal
MUTE
Stand-By Control
Voltage VST
No. A1469-10/12
ST-BY