|Description||af Power Amplifier , Package : Sip|
|Company||Sanyo Semiconductor Corporation|
|Datasheet||Download STK412-150 datasheet
Two-Channel Shift Power Supply Audio Power Amplifier ICs 150 W
The STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.Features
Pin compatible IC series that covers power ratings from × 2 channels × 2 channels or 0.8% THD, to 20 kHz. This allows the use of a common PCB for all output classes. The pin arrangement is also unified with that of the three-channel STK413-000 series. This means that PCBs designed for three-channel models can also be used for two-channel models. Miniature package 50 W/ch to 120 W/ch (THD to 20 kHz): mm* 150 W/ch to 180 W/ch (THD to 20 kHz): mm* * Not including the IC pins. Allowable load shorted time: 0.3 s
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
STK412-150 Series Organization These products are organized into a series based on their output power.
Parameter Output to 20 kHz) [THD] Maximum supply voltage, VH (No signal) Maximum supply voltage, VL (No signal) Recommended supply voltage, VH Recommended supply voltage, VL Recommended load impedance Package Type No. STK412-150 STK412-170Specifications
Parameter VH: Maximum supply voltage 1 (no signal) VL: Maximum supply voltage 1 (no signal) VL: Maximum supply voltage 2 (signal present) VH-VL: Maximum supply voltage *4 Thermal resistance Junction temperature Operating IC substrate temperature Storage temperature Allowable load shorted time *3 Symbol 6 or greater, 6 or greater, ms No load Per power transistor Both the Tjmax and Tcmax conditions must be met. VL max(2) VH-L max j-c Tj max Tc max Tstg RL 50 Hz, 150 W, one channel operating Conditions Ratings +125 0.3 Unit °C/W °C s
Parameter Symbol Test conditions *1 VCC (V) 1k f (Hz) k PO (W) THD 0.7 min 150 Standard value typ max UnitInput impedance Output noise voltage *2 Quiescent current
Notes: *1. Unless otherwise specified, a constant-voltage power supply must be used during inspection. *2. The output noise voltage rating gives the peak value read by an averaging VTVM. However, to eliminate the influence of flicker noise from the AC primary side line, use an AC stabilized power supply (50 Hz). *3. Use the transformer power supply specified in the figure below for allowable load shorted time and output noise voltage measurements. *4. Design circuits so that (|VH| - |VL|) is always less than 40 V when switching the power supply with the load connected. *5. Set up the VL power supply with an offset voltage at power supply switching (VL - LO) of about as an initial target.R5 TR8 Current Limiter for RL-Short R18 R23 Current Limiter for RL-Short TR14 TR13
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