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january 2001 1/14 ? vb409 / vb409sp / vb409(022y) double output high voltage regulator power i.c. (*) minimum value n 5 v dc regulated output1 voltage n output1 current limited to 80 ma n 16v not regulated output2 voltage n thermal shut-down protection n input overcurrent protection n power dissipation internally limited description the vb409, vb409sp, vb409(022y) are fully protected positive voltage regulators designed in stmicroelectronics high voltage vipower ? m1-2 technology. the devices can be connected directly to the rectified mains. they are well suited for applications powered from the ac mains and requiring a 5v dc regulated output and/or max 16v not regulated output voltages without galvanic insulation. vb409, vb409sp, vb409(022y) provide up to 80 ma minimum output current (internally limited) at 5v. the included over current and thermal shutdown provide protections for the device. type i cl(in) i cl(out) v out vb409 vb409(022y) vb409sp 1 a 80 ma (*) 5v 5% reg. 16v not reg 1 block diagram pentawatt hv(022y) 1 10 powerso-10 ? order codes: pentawatt hv(022y) vb409(022y) powerso-10 ? vb409sp pentawatt hv vb409 pentawatt hv input current limiter vref1 vref2 thermal protection output curr ent limiter vref3 output1 threshold cap (output2) input v z gnd nd8018
2/14 vb409 / vb409sp / vb409(022y) 5 4 3 2 1 pc10000 1 absolute maximum rating thermal data connection diagram (top view) symbol parameter value unit v in maximum input operative voltage (*) 580 v d v in,out input to output voltage - 0.2 to 420 v i out1 output current internally limited ma p tot power dissipation at t c =25 c internally limited w i in input current internally limited a t j junction operating temperature - 40 to 150 c t stg storage temperature - 55 to 150 c symbol parameter value unit pentawatt powerso-10 unit r thj-amb thermal resistance junction-ambient (max) 60 50 c/w r thj-case thermal resistance junction-case (max) 1 0.9 c/w output ground input threshold capacitor electrical characteristics (c=100 m f; -25?c 3/14 vb409 / vb409sp / vb409(022y) 1 electrical characteristics (continued) symbol parameter test conditions min typ max unit v cap(max) max clamped voltage on cap pin t j =25 c151617v v ref1 reference threshold voltage 11 12 13 v i th minimum current on threshold pin to switch- off the device 30 m a figure 1: input clamp current vs temperature figure 2: emc test results -20 0 25 50 75 100 125 temperature ( c) 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 input clamp current (a) en55011_qp en55014_qp en55011 industrial, scientific & medical devices en55014 household appliances
4/14 vb409 / vb409sp / vb409(022y) 1 figure 3: electrical schematic used for emc testing r1 1m w vb409 c1 100 m f d1 stta106 230vac, 50hz threshold cap + output1 c2 220nf r2 860k w iload 5-30 ma c3 2.2nf gnd input
5/14 vb409 / vb409sp / vb409(022y) 1 operation description the vb409, vb409(022y), vb409sp contain two separate stages, as shown in the block diagram. the first stage is a preregulator that translates the high rectified mains voltage to a low voltage and charges an external electrolytic capacitor. the second stage is a simple 5v regulator. the typical operating waveforms are shown in figure 5. the device may be driven by a half wave or by a full wave using a bridge rectifier. current flowing through the regulator stage is provided by a bipolar trilinton. it conducts for a limited time (0-t 1 ; t 2 -t/2), set by external divider (r1-r2). the values of r1 and r2 have to be chosen in order to achieve the internal threshold value at the decided vmains voltage. when the threshold pin voltage goes over v ref1 , the series trilinton is switched off and remains in this state until voltage at the threshold pin again drops below the internal threshold. using this technique, energy is drawn from the ac mains only during the low voltage portions of each positive half cycle, thus reducing the dissipation in the first stage. during the conduction angle, current provided by the trilinton is used to supply the loads and to charge the capacitor c1. in such a way, when the trilinton switches off, the loads receive the required currents by the capacitor discharge. for this reason it is important to properly set the conduction angle: during this period c1 has to reach a sufficient charge to guarantee that, at the end of discharging, the voltage drop between the capacitor and the output1 pin is over 2.5v. assuming that conduction angle has been set, two different possibilities can occur: 1) c1 value is such to reach v cap(max) within the conduction angle. as the comparator also senses c1 voltage, when v cap goes over v cap(max) , the trilinton would switch off. but doing so, the capacitor would discharge through the load so reducing its voltage. as soon as v cap drops below v cap(max) , the trilinton switches on. as a consequence the trilinton reaches a stable condition limiting the current to a value sufficient to supply the loads and hold the capacitor voltage just below v cap(max) (see figures 5b and 5c). 2) c1 value is such to reach v cap(max) outside the conduction angle. in this case the trilinton doesn't reduce the current, but holds it to a constant value (i cl(in) ) during the whole conduction angle (see figures 6a and 6b). thus for each period the capacitor is charged twice. the ripple on the capacitor (output2) depends on the following causes: - value of the capacitor - value of the total current supplied thus it is possible to reduce it choosing the proper capacitor value according to the formula: with d t @ t/2 the device has integrated current limit and thermal shutdown protections. the thermal shutdown turns the low voltage stage off (output1=0v) if the die temperature exceeds a predetermined value. hysteresis in the thermal sense circuit holds the device off until the die temperature cools down. be careful that the thermal protection doesn't act on the output2. conduction angle choice the power stage is a bipolar one; so in order to not exceed its soa limits the ratio r1/r2 must be 11 . further choosing r1 and r2 in such a way that the capacitor is charged to its maximum voltage value (v cap(max) ) at the end of the conduction period, the power dissipated will be minimized. c d q d v -------- i tot d t d v ------- - ? ==
6/14 vb409 / vb409sp / vb409(022y) application example for the power dissipation optimization in case of i out2 =constant the average power dissipated on the device (p device ) can be calculated as follow: p device = p in -(i out2 .v out2 )-(i out1 .v out1 ) (1) where p in = average input power and v out2 = average output2 voltage assuming that i tot =i out1 +i out2 (2) it is possible to use the below table data to evaluate through the formula (1) the minimum average power dissipation on the device. table 1 (with r1=1m w) application example: assuming that: c=100 m f; i out1 =15ma and i out2 =10ma, according to the formula (2), then i tot =25ma with these values, the table 1 reports: r1= r2=1m w ; v out2 =13.7v. using formula (1) the minimum average power dissipation is: p device = 0.8 - (10 13.7) 10 -3 - (15 5) 10 -3 @ 0.6w v out2(max) (v) v out2(min) (v) v out2 (v) i tot (ma) r2 (k w ) p in (w) c=220 m f 14.9 12.8 13.8 40 470 1.7 14.5 12.7 13.5 35 560 1.3 15 15.5 14.2 30 560 1.1 c=100 m f 15.4 12.2 13.7 25 1000 0.8 15.4 12.9 14.1 20 1000 0.7 15.5 13.6 14.5 15 1000 0.5 c=47 m f 15.8 13.3 14.5 10 1000 0.3 15.8 13.4 15.1 5 1000 0.2 1 main + r l oad r 1 r 2 c 1 vb049a1 input current limiter vref1 vref2 thermal protection output current limiter vref3 output1 threshold cap (output2) input v z i load2 figure 4: application scheme
7/14 vb409 / vb409sp / vb409(022y) 1 rectified t t t i in i cl(in) v cap v cap(max) v cap(min) main figure 5a figure 5b figure 5c figure 5: typical waveforms v max v 1 t 1 t 2 t/2 t t v out1 figure 5d (output2)
8/14 vb409 / vb409sp / vb409(022y) 1 as before explained, the device also senses the preregulator voltage (v cap ), so that as soon as the capacitor reaches its maximum voltage, the trilinton reduces the current so limiting furtherly power dissipation. on the contrary if the capacitor doesn't reach the maximum value, the trilinton supplies current at a steady value (i max ) during the whole conduction angle: v in t i in i cl(in) v 1 v max 0 t1 t2 t/2 t t figure 6a figure 6b t v cap figure 6c
9/14 vb409 / vb409sp / vb409(022y) 1 dim. mm. inch min. typ max. min. typ. max. a 4.30 4.80 0.169 0.189 c 1.17 1.37 0.046 0.054 d 2.40 2.80 0.094 0.11 e 0.35 0.55 0.014 0.022 f 0.60 0.80 0.024 0.031 g1 4.91 5.21 0.193 0.205 g2 7.49 7.80 0.295 0.307 h1 9.30 9.70 0.366 0.382 h2 10.40 0.409 h3 10.05 10.40 0.396 0.409 l 15.60 17.30 6.14 0.681 l1 14.60 15.22 0.575 0.599 l2 21.20 21.85 0.835 0.860 l3 22.20 22.82 0.874 0.898 l5 2.60 3 0.102 0.118 l6 15.10 15.80 0.594 0.622 l7 6 6.60 0.236 0.260 m 2.50 3.10 0.098 0.122 m1 4.50 5.60 0.177 0.220 r 0.50 0.02 v4 90 (typ) diam 3.65 3.85 0.144 0.152 p023h3 pentawatt hv mechanical data
10/14 vb409 / vb409sp / vb409(022y) a c h2 h3 h1 l5 dia l3 l6 l7 f g1 g2 l l1 d r m m1 e resin between leads v4 dim. mm. inch min. typ max. min. typ. max. a 4.30 4.80 0.169 0.189 c 1.17 1.37 0.046 0.054 d 2.40 2.80 0.094 0.110 e 0.35 0.55 0.014 0.022 f 0.60 0.80 0.024 0.031 g1 4.91 5.21 0.193 0.205 g2 7.49 7.80 0.295 0.307 h1 9.30 9.70 0.366 0.382 h2 10.40 0.409 h3 10.05 10.40 0.396 0.409 l 16.42 17.42 0.646 0.686 l1 14.60 15.22 0.575 0.599 l3 20.52 21.52 0.808 0.847 l5 2.60 3.00 0.102 0.118 l6 15.10 15.80 0.594 0.622 l7 6.00 6.60 0.236 0.260 m 2.50 3.10 0.098 0.122 m1 5.00 5.70 0.197 0.224 r 0.50 0.020 v4 90 90 diam. 3.70 3.90 0.146 0.154 pentawatt hv 022y (vertical high pitch) mechanical data
11/14 vb409 / vb409sp / vb409(022y) 1 1 1 1 dim. mm. inch min. typ max. min. typ. max. a 3.35 3.65 0.132 0.144 a (*) 3.4 3.6 0.134 0.142 a1 0.00 0.10 0.000 0.004 b 0.40 0.60 0.016 0.024 b (*) 0.37 0.53 0.014 0.021 c 0.35 0.55 0.013 0.022 c (*) 0.23 0.32 0.009 0.0126 d 9.40 9.60 0.370 0.378 d1 7.40 7.60 0.291 0.300 e 9.30 9.50 0.366 0.374 e2 7.20 7.60 0.283 300 e2 (*) 7.30 7.50 0.287 0.295 e4 5.90 6.10 0.232 0.240 e4 (*) 5.90 6.30 0.232 0.248 e 1.27 0.050 f 1.25 1.35 0.049 0.053 f (*) 1.20 1.40 0.047 0.055 h 13.80 14.40 0.543 0.567 h (*) 13.85 14.35 0.545 0.565 h 0.50 0.002 l 1.20 1.80 0.047 0.070 l (*) 0.80 1.10 0.031 0.043 a 0? 8? 0? 8? a (*) 2? 8? 2? 8? 1 1 powerso-10 ? mechanical data (*) muar only poa p013p detail oao plane seating a l a1 f a1 h a d d1 == == e4 0.10 a e c a b b detail oao seating plane e2 10 1 eb he 0.25 p095a
12/14 vb409 / vb409sp / vb409(022y) 1 1 pentawatt hv tube shipment (no suffix) all dimensions are in mm. base q.ty 50 bulk q.ty 1000 tube length ( 0.5) 532 a 18 b 33.1 c( 0.1) 1 c b a
13/14 vb409 / vb409sp / vb409(022y) 1 powerso-10 ? suggested pad layout 1 tape and reel shipment (suffix a13tro) reel dimensions all dimensions are in mm. base q.ty 600 bulk q.ty 600 a (max) 330 b (min) 1.5 c( 0.2) 13 f 20.2 g (+ 2 / -0) 24.4 n (min) 60 t (max) 30.4 tape dimensions according to electronic industries association (eia) standard 481 rev. a, feb 1986 all dimensions are in mm. tape width w 24 tape hole spacing p0 ( 0.1) 4 component spacing p 24 hole diameter d ( 0.1/-0) 1.5 hole diameter d1 (min) 1.5 hole position f ( 0.05) 11.5 compartment depth k (max) 6.5 hole spacing p1 ( 0.1) 2 top cover tape end start no components no components components 500mm min 500mm min empty components pockets saled with cover tape. user direction of feed 6.30 10.8- 11 14.6-14.9 9.5 1 2 3 4 5 1.27 0.67-0.73 0.54- 0.6 10 9 8 7 6 b a c all dimensions are in mm. base q.ty bulk q.ty tube length ( 0.5) a b c ( 0.1) casablanca 50 1000 532 10.4 16.4 0.8 muar 50 1000 532 4.9 17.2 0.8 tube shipment (no suffix) c a b muar casablanca
14/14 vb409 / vb409sp / vb409(022y) 1 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. the st logo is a trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy- all rights reserved. stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com

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