STR83145
Category: IC Chips
Description: Voltage Doubler/Bridge Rectifier Automatic Switch ICs/
Price range ($)
0.86614 2.23520
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STR83145
STR83145 has several brands around the world that may have alternate names for STR83145 due to regional differences or acquisition. STR83145 may also be known as the following names:
All sellers
3
Brand new
3
Certified preowned
3
Official
3
Third Party
3
Description
STR83145
Stock:9999 |
Sanken Electric |
Voltage Doubler/Bridge Rectifier Automatic Switch ICs/ |
≥1: US $1.67640 US $1.50876 ≥5: US $1.11760 US $1.00584 ≥10: US $1.00584 US $0.90526 ≥20: US $0.97790 US $0.88011 ≥50: US $0.94996 US $0.85496 ≥100: US $0.92202 US $0.82982 ≥200: US $0.89408 US $0.80467 ≥500: US $0.88290 US $0.79461 ≥1000: US $0.86614 US $0.77953
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Inquiry
|
STR83145
Stock:792 |
SK 06+ |
Voltage Doubler/Bridge Rectifier Automatic Switch ICs/ |
≥1: US $0.97790 US $0.88011
More:
Inquiry
|
STR83145
Stock:3 |
Sanken Electric 7910 |
Voltage Doubler/Bridge Rectifier Automatic Switch ICs/ |
≥1: US $2.23520 US $2.10109
More:
Inquiry
|
Intended for power supplies with universal inputs (85 V to 265 Vrms), the STR83145 and STR84145 latched, universal input-voltage switches incorporate timing, control, and drive circuitry with a high-current triac (bidirectional triode thyristor) switch. Each device senses the applied ac line potential and automatically switches the rectifier and associated capacitors between a voltage-doubler configuration (for line voltages to 141 V) and a full-bridge configuration (for line voltages greater than 149 V). This eliminates the possibility of user error with adjustable jumpers or switches. Also, the related switch-mode power stage need operate only over a reduced range of dc input voltages when compared with "wide input" power supplies using a bridge rectifier only. The reduction in dc input voltage range permits the use of lower-voltage capacitors and leads to a reduction in power stage stresses and power dissipation. The STR83145 and STR84145 differ only in their maximum ac current rating (10 A and 12 A, respectively).
The internal sensitive-gate triac is switched by a temperature-compensated constant-current gate driver driven by a 15 kHz pulse train to reduce power dissipation. The switch-over voltage is accurately set during manufacture for consistent operation. An user-adjustable delay is provided to ensure start-up in the full-bridge mode. Once established (by an input voltage greater than 149Vrms), an integral latch holds the full-bridge mode to preclude false application of the doubler mode during brownouts, voltage droops, or missing cycles.
The requirements of low transient thermal impedance and steady-state thermal resistance are satisfied in a molded, 5-lead single in-line power package. Similar input-voltage switches, with a switch point of 159Vrms, are also available.
FEATURES
● Low Duty Cycle Triac Drive for Minimum Dissipation
● For Universal Input Operation Between 85Vrms and 265Vrms to 10 A or 12 A
● Internal Latch Prevents False Mode Switching
● Internal Sensitive-Gate Power Triac
● Adjustable Start-Up Delay
● Accurate 145Vrms Switch-Point Voltage
● Low External Parts Count
● Low Power Dissipation
● Low-Power External Parts
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Freight calculation
Express:(FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over 200$,Overweight will be charged separately
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