str83145 and str84145 latched, universal input-voltage switches data sheet 28190 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. features n low duty cycle triac drive for minimum dissipation n for universal input operation between 85 v rms and 265 v rms to 10 a or 12 a n internal latch prevents false mode switching n internal sensitive-gate power triac n adjustable start-up delay n accurate 145 v rms switch-point voltage n low external parts count n low power dissipation n low-power external parts always order by complete part number: part number max. on-state current str83145 10 a rms str84145 12 a rms latched, universal input-voltage switches str83145 and str84145 absolute maximum ratings repetitive peak off-state voltage, v drm ............................................. 500 v static on-state current, i t(rms) str83145 ...................................... 10 a str84145 ...................................... 12 a non-repetitive surge on-state current, i tsm str83145 .................................... 100 a str84145 .................................... 120 a package power dissipation, p d ........................................ see graph triac junction temperature, t j ..... +125 c frame temperature, t m ................ +100 c operating temperature range, t a ............................... -20 c to +125 c storage temperature range, t stg ............................. -40 c to +125 c mt1 delay common mt2 dwg. pk-005 gate 1 2 3 4 5 latch + osc. tm microsystems, inc. tm a interim data sheet (subject to change without notice) august 16, 1994
str83145 and str84145 latched, universal input-voltage switches 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 tm microsystems, inc. tm a 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 copyright ? 1994 allegro microsystems, inc. functional block diagram allowable package power dissipation common 3 gate 5 1 2 4 dwg. fk-004 + reg. latch + + delay mt1 mt2 osc. 7 v 30 20 10 20 60 100 40 free air 27 w 0 temperature in c allowable package power dissipation in watts infinite heat sink (no mica sheet) dwg. gk-010 2 w 80 120 0 25 15 5 150 mm x 150 mm x 2 mm (with mica sheet) 100 mm x 100 mm x 2 mm (with mica sheet) 75 mm x 75 mm x 2 mm (with mica sheet) p is limited by t d j p is limited by t dm
str83145 and str84145 latched, universal input-voltage switches simplified operation electrical characteristics at t a = +25 c, voltage measurements are referenced to common (pin 3) (unless otherwise noted). limits characteristic symbol test conditions min. typ. max. units on-state voltage v tm str83145, i t = 10 a* C C 1.8 v str84145, i t = 12 a* C 1.6 C v off-state current i drm str83145, v d = 500 v C C 100 m a str84145, v d = 500 v C 40 C m a starting voltage v s v t = 2 v C C 100 v startup time delay t d c 2 = 1 m f, v mt1 3 100 v dc 40 C 100 ms dc switch-over voltage v c v delay 1 v 200 205 210 v temperature coefficient of switch-over voltage a vc -20 c t m +100 cC 45 C mv/ c input current i mt1 voltage-doubler mode, v mt1 = 195 v C C 10 ma full-bridge mode, v mt1 = 400 v C C 6.5 ma delay terminal voltage v delay C C 7.0 v triac gate-drive osc. freq. f o v gate ref. mt1, v mt1 = 100 v C 15 C khz latch reset voltage v r v gate = 400 mv 2.0 C 15 v thermal resistance r q jm fet channel to mounting surface C C 1.8 c/w notes: negative current is defined as coming out of (sourcing) the specified device terminal. typical data is for design information only. *in practical use, i t is recommended derated to 70%. + + 85?32 v rms 240?73 v peak + + 174?65 v rms 246?73 v peak full-bridge mode dwg. ek-006 voltage-doubler mode
str83145 and str84145 latched, universal input-voltage switches 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 tm microsystems, inc. tm a typical characteristics applications information warning these devices are designed to be operated at lethal voltages and energy levels. circuit designs that embody these components must conform with applicable safety requirements. precau- tions must be taken to prevent accidental contact with power-line potentials. do not connect grounded test equipment. the use of an isolation transformer is recommended during circuit development and breadboarding. 205 200 04080 210 frame temperature in c dc switch-over voltage in volts dwg. gk-012 -20 20 60 100 4 2 0 2 6 static on-state current in amperes average on-state power loss in watts dwg. gk-013 04 10 6 12 8 8 10 full sine wave conduction angle q 1 + q 2 ? 360 q 1 q 2 40 20 -25 +50 +100 10 ambient temperature in c triac gate-drive duty cycle in % dwg. gk-008 30 0 0 +25 +75 +125 v mt1 = 100 v triac gate-drive oscillator frequency in khz 40 20 10 30 0 dc f o
str83145 and str84145 latched, universal input-voltage switches typical application 300 100 30 1.0 10 c2 capacitance in m f voltage-doubler mode startup time delay in ms dwg. gk-011 0.3 3.0 30 1000 3000 t= 25 c m external component values have been selected for optimum device performance and reliability. except for c 2 , component values other than the following may result in false operation of these devices. c 1 = 4.7 m f, 400 v c 2 = 1 m f, 50 v c 3 = 0.047 m f, 50 v c 4 = 0.047 m f, 250 v r 1 = 4.7 w turn-on delay (forced full-bridge mode) may be adjusted for desired system performance: t d ? 68 x c 2 where t d is the delay time in ms c 2 is capacitance in m f + + + 3 5 1 2 4 dwg. ek-007 + + + + r1 c4 c3 c1 c2 85?65 v rms 240?73 v peak rm11c rbv series -t
str83145 and str84145 latched, universal input-voltage switches 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 tm microsystems, inc. tm a dimensions in inches (based on 1 mm = 0.03937") notes: 1. exact body and lead configuration at vendor's option within limits shown. 2. recommended mounting hardware torque: 4.34 C 5.79 lbf?ft. 3. the hatched area is exposed heat spreader, electrically common to pin 3. 4. recommended 0.003" to 0.006" thick mica insulator with metal-oxide-filled, alkyl-degenerated oil base, silicone grease (dow corning 340, or equivalent); or bergquist sil-pad ? . dwg. mk-004 37.5 mm 1.48" 25 mm 0.98" 3.2 mm 0.126" +0.15 mm/0.060" ? 8.5 mm 0.335" 0.5 mm 0.020" r dwg. mk-001-5 in 15 1.102 0.012 0.276 0.008 0.866 0.012 0.906 0.012 0.150 0.004 0.100 0.004 0.177 0.008 0.079 0.004 0.039 0.004 0.024 +0.008 ?.004 0.177 0.020 t ref. m 0.701 0.012 0.157 0.004 1.417 +0.060 ?.040 0.177 0.020 0.197 ref. note: the hatched area is exposed heat spreader, electrically common to pin 3. 0.126 0.004
str83145 and str84145 latched, universal input-voltage switches dimensions in millimeters notes: 1. exact body and lead configuration at vendor's option within limits shown. 2. recommended mounting hardware torque: 6 C 8 kgf?cm (0.588 C 0.785 nm). 3. the hatched area is exposed heat spreader, electrically common to pin 3. 4. recommended 0.08 mm to 0.15 mm thick mica insulator with metal-oxide-filled, alkyl-degenerated oil base, silicone grease (dow corning 340, or equivalent); or bergquist sil-pad ? . dwg. mk-004 37.5 mm 1.48" 25 mm 0.98" 3.2 mm 0.126" +0.15 mm/0.060" ? 8.5 mm 0.335" 0.5 mm 0.020" r dwg. mk-001-5 mm 15 28.0 0.3 7.0 0.2 22.0 0.3 23.0 0.3 3.81 0.1 2.54 0.1 4.5 0.2 2.0 0.1 1.0 0.1 0.6 +0.2 ?.1 4.5 0.5 t ref. m 17.8 0.3 4.0 0.1 36.0 +1.5 ?.0 4.5 0.5 5.0 ref. note: the hatched area is exposed heat spreader, electrically common to pin 3. 3.2 0.1
str83145 and str84145 latched, universal input-voltage switches 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 tm microsystems, inc. tm a allegro microsystems, inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the design of its products. components made under military approvals will be in accordance with the approval requirements. the information included herein is believed to be accurate and reliable. however, allegro microsystems, inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use. power conversion/power management switching regulator pmcms part number* application ac in max p o power switch 5703 quasi-resonant flyback converter 110/120 v 140 w 500 v 6 a bipolar 5707 quasi-resonant flyback convertter 85-265 v 90 w 850 v 6 a bipolar 220/240v 140 w 5708 quasi-resonant flyback converter 85-265 v 120 w 850 v 7.5 a bipolar 220/240 v 180 w 6511 quasi-resonant flyback converter 110/120 v 180 w 450 v 11 a mosfet 6525 quasi-resonant flyback converter 85-265 v 120 w 600 v 6 a mosfet 6529 quasi-resonant flyback converter 220/240 v 180 w 800 v 5.4 a mosfet 6703 quasi-resonant flyback converter 110/120v 140 w 500 v 6 a bipolar 6704 quasi-resonant flyback converter 110/120 v 100 w 500 v 5 a bipolar 6707 quasi-resonant flyback converter 85-265 v 90 w 850 v 6 a bipolar 220/240 v 140 w 6708 quasi-resonant flyback converter 85-265 v 120 w 850 v 7.5 a bipolar 220/240 v 180 w 6709 quasi-resonant flyback converter 85-265 v 160 w 850 w 10 a bipolar 220/240 v 220 w * complete part number includes additional characters to indicate operating temperature range and package style. linear regulator ics part number* v o max dc in max dropout max i o package 8181 5.0 v 10 v 300 mv @ 500 ma 1.0 a 16-lead soic 8183 3.0 v 10 v 300 mv @ 125 ma 250 ma 6-lead sot-89 8184 3.0 v 10 v 300 mv @ 125 ma 250 ma sot-89 8186 3.3 v 10 v 300 mv @ 125 ma 250 ma 6-lead sot-89 8187 3.3 v 10 v 300 mv @ 125 ma 250 ma sot-89 * complete part number includes additional characters to indicate operating temperature range and package style. also 83145 and 84145 latched, universal input-voltage switches.
|
