Anterwell Technology Ltd.
Anterwell Technology Ltd. Large Original stock of IC Electronics Components, Transistors, Diodes etc. High Quality, Reasonable Price, Fast Delivery.
Add to Cart
STK404-130S 1 CH AB AUDIO POWER IC
Features
• Compact packaging supports slimmer set designs (30W to 120 W)
• Series designed for 30 up to 80 W (100 W) and pincompatibility (100 to 120 W have 18 pins)
• Simpler heat sink design facilitates thermal design of slim stereo sets
• Current mirror circuit application reduces distortion to 0.08%
• Supports addition of electronic circuits for thermal shutdown and load-short protection circuit as well as pop noise muting which occurs when the power supply switch is turned on and off
Specifications Maximum
Ratings at Ta = 25°C
| Parameter | Symbol | Conditions | Ratings | Unit |
| Maximum supply voltage | Vcc Max | ±45 | V | |
| Thermal resistance | θj-c | 2.1 | °C/W | |
| Junction temperature | Tj | 150 | ºC | |
| Operating substrate temperature | Tc | 125 | ºC | |
| Storage temperature | Tstg | -30 to +125 | ºC | |
| Available time for load shorted | tS* | VCC = ±30 V, RL = 8 Ω, f = 50 Hz, PO = 35 W | 0.3 | s |
Description of External Parts
R1, C1 : Input filter circuit
• Reduces high-frequency noise.
C2 : Input coupling capacitor
• DC current suppression.
A reduction in reactance is effective because of increases in capacitor reactance at low frequencies and 1/f noise dependence on signal source resistance which result in output noise worsening.
R2 : Input bias resistor
• Biases the input pin to zero.
• Effects VN stability (refer to NF circuit).
• Due to differential input, input resistance is more or less determined by this resistance value.
R4, R5 : NFB circuit (AC NF circuit). Use of resistor with 1% error is suggested.