STK404-230-E Datasheet, PDF (11/12 Pages) Sanyo Semicon Device – One-Channel Class AB Audio Power Amplifier IC 100W

STK404-230-E
Pre-VCC Limiting Circuit (STK404-230-E)
The ±Pre voltages can be limited under maximum rated conditions (±63V) as shown below.
Sample Circuit
ST
BY ^{ERROR IN}
123
STK404-230-E
SUB
NF _/GND -Pre +Pre DC OC -VCC +VCC OUT- OUT+
4 5 6 7 8 9 10 11 12 13
Standby
R30
H: Operating
L: Standby/error reset
ERROR
100pF
0.22Ω *1
Open collector output
H: Operation
L: Error
IN 1kΩ
C16
1.8kΩ
GND
470pF
56kΩ
10μF
/10V
100Ω
/1W
TR1
56kΩ
3pF
R2
R1
100μF
/100V
ZD
3μH
4.7Ω
OC
DC
OUT
0.1μF
4.7Ω ^GND
+VCC
100μF
/100V
GND
100μF
ZD
/100V _R4
R3
100Ω ^TR2
/1W
*1 Metal Plate Cement Resistor 0.22Ω±10%(5W)
100μF
/100V
-VCC
External Component Examples (at Ta=50°C)
[Conditions]
Limiting voltage = ±56V
VCC max = ±80V
Ambient temperature = 50°C
TR1
TR2
ZD
R1, R3
R2, R4
: 2SD863, SANYO
: 2SB764, SANYO
: MAZ7560 (Vz=56V), Panasonic
: 5.6kΩ
: 22Ω
* ±pre current = 25mA (max.)
* The external components should be selected according to the conditions of the product incorporating the HIC.
No. A1244-11/12