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STR-82166S, STR82200F00A100, STR83145

Table of contents:
Info of STR-82166S
Info of STR82200F00A100
Info of STR83145

STR-82166S, STR82200F00A100, STR83145 Selling Leads, Datasheet

MFG:IR Package Cooled:TQFP D/C:06+

STR-82166S, STR82200F00A100, STR83145 Picture

STR-82166S, STR82200F00A100, STR83145 Datasheet download

Five Points

Part Number: STR-82166S

MFG: IR

Package Cooled: TQFP

D/C: 06+

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STR83145 General Description

Intended for power supplies with universal inputs (85 V to 265 V rms), 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 149 V rms), 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 159 V rms, are also available.

STR83145 Maximum Ratings

Repetitive Peak OFF-State Voltage,
     V_DRM ............................................. 500 V
Static ON-State Current, IT(RMS)
       STR83145...................................... 10 A
       STR84145...................................... 12 A
Non-Repetitive Surge ON-State Current, ITSM
     STR83145.................................... 100 A
      STR84145.................................... 120 A
Package Power Dissipation,
    PD .......................................... See Graph
Triac Junction Temperature, TJ ...... +125°C
Frame Temperature, TM ................ +100°C
Operating Temperature Range,
   TA ............................... -20°C to +125°C
Storage Temperature Range,
Tstg ............................. -40°C to +125°C

STR83145 Features

· Low Duty Cycle Triac Drive for Minimum Dissipation
· For Universal Input Operation Between 85 V rms and 265 V rms to 10 A or 12 A
· Internal Latch Prevents False Mode Switching
· Internal Sensitive-Gate Power Triac
· Adjustable Start-Up Delay
· Accurate 145 V rms Switch-Point Voltage
· Low External Parts Count
· Low Power Dissipation
· Low-Power External Parts

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