(China (Mainland))
Product Summary
The STR83159 is a latched, universal input-voltage switch incorporated timing, control, and drive circuitry with a high-current triac (bidirectional triode thyristor) switch. The STR83159 senses the applied ac line potential and automatically switches the rectifier andassociated capacitors between a voltage-doubler configuration (for linevoltages to 141 V) and a full-bridge configuration (for line voltagesgreater than 149 V). This eliminates the possibility of user error withadjustable jumpers or switches. Also, the related switch-mode powerstage need operate only over a reduced range of dc input voltageswhen compared with wide input power supplies using a bridge rectifieronly. The reduction in dc input voltage range permits the use of lower-voltage capacitors and leads to a reduction in power stage stresses andpower dissipation. The STR83159 is intended for power supplies with universal inputs.
Parametrics
STR83159 absolute maximum ratings: (1)Repetitive Peak OFF-State Voltage,VDRM: 500 V; (2)Static ON-State Current, IT(RMS): 10 A; (3)Non-Repetitive Surge ON-State Current: 100 A; (4)Junction Temperature, TJ: +125℃; (5)Frame Temperature, TM: +100℃; (6)Operating Temperature Range,TA: -20 to +125℃; (7)Storage Temperature Range,Tstg: -40 to +125℃.
Features
STR83159 features: (1)Low Duty Cycle Triac Drive for Minimum Dissipations; (2)For Universal Input Operation Between 85 V rms and 265 V rmsto 10 A or 12 ; (3)AsInternal Latch Prevents False Mode Switchings; (4)Internal Sensitive-Gate Power Triacs; (5)Adjustable Start-Up Delays; (6)Accurate 145 V rms Switch-Point Voltages; (7)Low External Parts Counts; (8)Low Power Dissipations; (9)Low-Power External Parts.
Diagrams
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STR84145 |
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