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HA17723/f/p precision voltage regulator description the HA17723 high-accuracy general-purpose voltage regulator features a very low stand-by current, (quiescent current) a low temperature drift, and high ripple rejection ratio. if you need over than 150ma output current, adding external pnp or npn transistor. this voltage regulator is suitable for various applications, for example, series or parallel regulator, switching regulator. ordering information type no. application package HA17723 commercial use dp-14 HA17723f fp-14da HA17723p industrial use dp-14 pin arrangement nc current limit current sense v in (? v in (+) v ref v ee v c v out v z nc v cc nc comp 1 2 3 4 5 6 7 14 13 12 11 10 9 8 (top view)
HA17723/f/p 2 circuit schematic v cc v ref v in (+) v in (? v ee v c v z v out comp cl cs
HA17723/f/p 3 absolute maximum ratings (ta = 25?) item symbol HA17723/p HA17723f unit supply voltage vcc 40 40 v input/output voltage differential vdiff (in-o) 40 40 v differential input voltage v in (diff) 5 5v maximum output current i out 150 150 ma current from vref i ref 15 15 ma power dissipation p t 830 (note 1) 625 (note 2) mw operating temperature topr 0 to +70 / ?0 to +75 0 to +70 c storage temperature tstg ?5 to +125 ?5 to +125 c notes: 1. above 25 c derate by 8.3mw/ c 2. allowable temperature of ic junction part, tj (max), is as shown below. tj (max) = q j - a ?pc (max)+ta ( q j - a is thermal resistance value during mounting, and pc (max) is the maximum value of ic power dissipation.) therefore, to keep tj (max) 125 c, wiring density and board material must be selected according to the board thermal conductivity ratio shown below. be careful that the value of pc (max) does not exceed that p t . 40 mm board 0.8 t ceramic or 1.5 t epoxy 0.5 1 2 5 10 20 board thermal conductivity (w/m c) 240 thermal resistance q j? ( c/w) 2 1 3 220 200 180 160 140 120 100 80 sop14 using paste containing compound sop14 without compound (1) glass epoxy board with 10% wiring density (2) glass epoxy board with 30% wiring density (3) ceramic board with 96% alumina coefficient
HA17723/f/p 4 electrical characteristics (ta = 25?) item symbol min typ max unit test conditions line regulation d v o line 0.01 0.1 % v in = 12 to 15v 0.1 0.5 % v in = 12 to 40v 0.4%v in = 12 to 15v, ta = ?0 to +75 c 0.3%v in = 12 to 15v, ta = 0 to +70 c load regulation d v o load 0.03 0.2 % i out = 1 to 50ma 0.7%v in = 12 to 15v, ta = ?0 to +75 c 0.6%i out = 1 to 50ma, ta = 0 to +70 c ripple rejection r rej 74 db f = 50hz to 10khz c ref = 0 ?6 c ref = 5 m f average temperature coefficient of output voltage d v o / d t 0.003 0.018 %/ c ta = ?0 to +75 c 0.003 0.015 %/ c ta = 0 to +70 c reference voltage v ref 6.80 7.15 7.50 v v in = v cc = v c = 12v, v ee = 0 standby current i st 4.0 ma v in = 30v, i l = 0 short circuit current limit i sc 65 ma r sc = 10 w , v out = 0 electrical characteristics measuring circuit v in v cc v ee v out v ref c ref v in (+) v in (+) v out v c r 1 r 3 r sc c 1 r 2 cl cs comp v in = v cc = v c = 12v, v ee = 0, v out = 5.0v, i l = 1ma, r sc = 0, c 1 = 100pf, c ref = 0, r 2 ? 5k w , r 3 = r 1 r 2 /(r 1 +r 2 )
HA17723/f/p 5 HA17723 applications fixed voltage source in series low voltage (2 to 7 v) regulator: figure 1 shows the construction of a basic low voltage regulator. the divider (resistors r 1 and r 2 ) from v ref makes the reference voltage, which will be provided to the noninverted input of the error amplifier, less than output voltage. in the fixed voltage source where the output voltage will be fed back to the error amplifier directly as shown in figure 1. output voltage will be divided vref since the output voltage is equal to the reference voltage. thus, the output voltage v out is: v out = nv ref , n = r 2 r 1 + r 2 comp v in v cc v out v out v ee cl cs v ref r 1 2.15k w r 3 1.5k w r 2 4.99k w c 1 100pf c ref 1 m f v in (+) r sc = 0 v in (? v c figure 1 low voltage (2 to 7 v) regulator high voltage (7 to 37 v) regulator: figure 2 shows the construction of a regulator whose output voltage is higher than the reference voltage, v ref . v ref is added to the non-inverted input of the error amplifier via a resistor, r 3 . the feedback voltage is produced by dividing the output voltage with resistors r 1 and r 2 . thus, the output voltage v out is: v out = , n = v ref n r 2 r 1 + r 2 comp v in v cc v ee v ref r sc = 0 v in (+) r 1 7.87k w r 2 7.15k w c 1 100pf r 3 3.8k w v in (? v out v out cl cs v c figure 2 high voltage (7 to 37 v) regulator
HA17723/f/p 6 negative voltage regulator: figure 3 shows the construction of a so-called negative voltage regulator, which generates a negative output voltage with regard to gnd. assume that the output voltage, ? out , increases in the negative direction. as the voltage across the r 1 is larger than that across the r 3 , which provides the reference voltage, the output current of the error amplifier increases. in the control circuit, the impedance decreases with the increase of input current, which makes the base current of the external transistor q approach gnd. as a result, the output voltage returns to the established value and output voltage is stable. the output voltage ?out of this circuit is: ? out = = v ref v ref r 3 r 3 + r 4 (r 1 + r 2 ) ?(r 3 + r 4 ) r 2 ?(r 3 + r 4 ) ?r 4 ?(r 1 + r 2 ) r 1 + r 2 r 3 + r 4 r 3 r 1 cl cs comp v in v c v ref v in (+) v in (? v out v out v z c 1 100pf r 2 11.5k w r 5 2k w r 4 3k w r 3 3k w r 1 3.65k w v cc v ee q figure 3 negative voltage regulator how to increase the output current: to increase the output current, you must increase the current capacity of the control circuit. figures 4 and 5 show examples with external transistors. cl cs comp v in v cc v ee v ref r sc 0.7 w r 1 7.87k w r 2 7.15k w c 1 500pf v out v out v in (+) v in (? v c q figure 4 increasing output current (1)
HA17723/f/p 7 cl cs comp q v in v cc v ee v ref r 1 2.15k w r sc 0.4 w c 1 1nf r 2 5.0k w v in (+) v in (? v out v out r 3 60 w v c figure 5 increasing output current (2) fixed voltage source in parallel control figure 6 shows the circuit of a fixed voltage source in parallel control. cl cs comp v cc v ee v ref r 3 100 w r 4 100 w r 1 2k w c 1 5nf r 2 5k w v in (? v out v out v z v c q 1 v in figure 6 fixed voltage source in shunt regulator switching regulator figure 7 shows a switching regulator circuit. the error amplifier, control circuit, and forward feedback circuit r 4 and r 3 operate in together as a comparator, and make the external transistors q 1 and q 2 to turn on/off. in this circuit, the self-oscillation stabilizes the output voltage and the change in output is absorbed by the changes of the switches conducting period. figures 8 and 9 show a negative voltage switching regulator circuit and its characteristics.
HA17723/f/p 8 v in q 2 q 1 d 1 v cc v ee v ref v out v in (+)v in (? r 5 3k w r 1 2.15k w r 4 1m w 5k w 51 w 1k w r 2 r 3 r 6 c 1 0.1 m f c 2 100 m f v out 5v l 1 1.2mh 100 w v c cl cs comp figure 7 positive voltage switching regulator v in q 1 d 1 q 2 v cc v ee v ref r 2 4k w r 7 1k w v out ?5v l 1 1.2mh r 6 220 w 100 w r 5 c 1 15pf r 4 1m w r 1 3.65k w c 1 0.1 m f c 2 100 m f r 3 1k w v out v z v in (+) v in (? v c cs comp cl figure 8 negative voltage switching regulator
HA17723/f/p 9 ? ? ?2 ?6 ?0 ?4 ?8 ?2 ?6 ?0 ?4 ?0 ?6 ?2 ? ? input voltage v in (v) input ?output characteristics ta = 25 c output voltage v out (v) 25 75 ?4 ?8 ?2 ?6 ?0 ?5.360 ?5.340 ?5.320 ?5.300 ?5.280 ?5.260 ?5.240 input voltage v in (v) output voltage v out (v) i out = 0.2a ta = ?5 c line regulation ?5.600 ?5.500 ?5.400 ?5.300 ?5.200 ?5.100 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 output current i out (a) load regulation 25 75 ta = ?5 c v in = 25 v output voltage v out (v) figure 9 negative voltage switching regulator operating characteristics
HA17723/f/p 10 floating-type fixed voltage source voltage sources of the floating type or boost type are typically employed when high voltage output is required. figure 10 shows the circuit of a floating-type fixed voltage source. considering the stabilization in this circuit, assume that the output voltage increases. at the input terminal of the error amplifier the non- inverted input will become low compared with the inverted input, and the output current of the error amplifier decreases. then, the current from the terminal v z in the control circuit decreases. as a result the base current of the external resistor q 1 will decrease and collector current will decrease, controlling increase of the output voltage. the output voltage v out in the circuit in figure 10 v out = 1 v ref r 1 + r 2 r 3 + r 4 r 4 r 1 figure 11 is the circuit diagram of a negative fixed voltage source in floating type. cs comp cl 2.0w q d 12 v hz12 h v in v cc r 5 6.2k w r sc 1 w r 4 3.0k w c 1 1nf r 3 3.0k w r 2 53.7k w r 1 3.57k w v ref v in (+) v ee v in (? v out v z v out v c figure 10 positive voltage floating regulator cl comp v in v ref v in (+) r 6 10k w r 4 3k w r 1 3.57k w r 2 97.6k w r 3 3k w r 5 10k w c 1 100pf v in (? v out v out v z v cc v ee v c cs d12 v hz12 h q figure 11 negative voltage floating regulator
HA17723/f/p 11 fixed voltage source with reduction type current limiter v in v cc v ee v ref v in (+) r sc 30 w r 3 2.7k w c 1 1nf r 2 2.15k w r 1 5.0k w r 4 5.6k w v in (? v out v out v c cl cs comp figure 12 fixed voltage source with reduction type current limiter 6.0 5.0 4.0 3.0 2.0 1.0 0 0 100 200 output current i out (ma) output voltage v out (v) i os = i os v be r 3 + r 4 r 4 r sc i op = i os + v o r 3 r 4 r sc v o i op figure 13 current control characteristics of fixed voltage source with reduction type current limiter
HA17723/f/p 12 fixed voltage source switching external control cs comp v in v ref v in (+) r 1 2.15k w r 2 4.99k w r 3 2k w r sc 5 w r 4 2k w c 1 1nf t 1 v in (? v out v out v out 3 10v v cc v ee v c cl control signal note: insert when note 2sc458 k figure 14 fixed voltage source switching external control time (sec) output voltage v out (v) 6 5 4 3 2 1 0 0 4 8 1216202428323640 ta = 25 c figure 15 operating characteristics of fixed voltage source switching external control
HA17723/f/p 13 characteristic curves 0.2 0102030 v out = +5v v in = ?2v r sc = 10 w ta = 75 c 25 ?0 0.1 output current i out (ma) 1.2 1.0 0.8 0.6 0.4 0.2 0 20406080100120 v out = +5v v in = +12v r sc = 10 w ta = 75 c 25 ?0 relative output voltage (v/v) output current i out (ma) 5 4 3 2 0 1020304050 25 75 v out = v ref i out = 0 ta = ?0 c stand-by current i st (ma) input voltage v in (v) 1 0 20406080100 0.1 0.2 25 v out = +5v v in = +12v r sc = 0 output current i out load regulation d v o load (%) load regulation d v o load (%) ?0 ta = 75 c load regulation vs. output current-1 load regulation vs. output current-2 relative output voltage vs. output current stand-by current vs. input voltage
HA17723/f/p 14 ?00 0 100 200 limit current i sc (ma) junction temperature tj( c) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 sense voltage v sc (v) 200 150 100 50 input/output voltage differential vdiff(in-o) (v) 0.2 line regulation vs. input/output voltage differential-1 line regulation vs. input/output voltage differential-2 0.1 0 5 5 15253545 line regulation d v o line (%) v out = +5v r sc = 0 i out = 1ma v = +3v 5 5 15253545 0 0.1 0.2 v out = +5v r sc = 0 i out = 1ma to 50ma input/output voltage differential vdiff(in-o) (v) line regulation d v o line (%) limit current r sc = 5 w r sc = 10 w sense voltage current limiting characteristics line transient response input voltage differential v in (dev) (v) ?0 ? 0 5 10 6 4 2 0 ? ? 5 m s/div time ( m s) output voltage differential v o (dev) (mv) input voltage output voltage v in = +12v v out = +5v i out = 1ma r sc = 0
HA17723/f/p 15 ?0 ? 0 output current differential i o (dev) (ma) 10 5 0 ? 5 5 m s/div time ( m s) output voltage differential v o (dev) (mv) output voltage output current v in = +12v v out = +5v i out = 40ma r sc = 0 output impedance zout ( w ) 10 1.0 0.1 100 1 k 10 k 100 k 1 m frequency f (hz) v out = 5v v in = +12v r sc = 0 i l = 50ma c l = 1 m f c l = 0 load transient response output impedance vs. frequency
HA17723/f/p 16 package dimensions hitachi code jedec eiaj mass (reference value) dp-14 conforms conforms 0.97 g unit: mm 7.62 0.25 0 ?15 19.20 20.32 max 1 8 14 7 1.30 2.54 0.25 0.48 0.10 6.30 7.40 max 0.51 min 2.54 min 5.06 max + 0.10 ?0.05 2.39 max hitachi code jedec eiaj mass (reference value) fp-14da conforms 0.23 g unit: mm *dimension including the plating thickness base material dimension *0.22 0.05 *0.42 0.08 0.70 0.20 0.12 0.15 0 ?8 m 0.10 0.10 2.20 max 5.5 10.06 1.42 max 14 8 1 7 10.5 max + 0.20 ?0.30 7.80 1.15 1.27 0.40 0.06 0.20 0.04
HA17723/f/p 17 cautions 1. hitachi neither warrants nor grants licenses of any rights of hitachi? or any third party? patent, copyright, trademark, or other intellectual property rights for information contained in this document. hitachi bears no responsibility for problems that may arise with third party? rights, including intellectual property rights, in connection with use of the information contained in this document. 2. products and product specifications may be subject to change without notice. confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. hitachi makes every attempt to ensure that its products are of high quality and reliability. however, contact hitachi? sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. design your application so that the product is used within the ranges guaranteed by hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the hitachi product. 5. this product is not designed to be radiation resistant. 6. no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from hitachi. 7. contact hitachi? sales office for any questions regarding this document or hitachi semiconductor products. hitachi, ltd. semiconductor & integrated circuits. nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan tel: tokyo (03) 3270-2111 fax: (03) 3270-5109 copyright ? hitachi, ltd., 1998. all rights reserved. printed in japan. hitachi asia pte. ltd. 16 collyer quay #20-00 hitachi tower singapore 049318 tel: 535-2100 fax: 535-1533 url northamerica : http:semiconductor.hitachi.com/ europe : http://www.hitachi-eu.com/hel/ecg asia (singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm asia (taiwan) : http://www.hitachi.com.tw/e/product/sicd_frame.htm asia (hongkong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm japan : http://www.hitachi.co.jp/sicd/indx.htm hitachi asia ltd. taipei branch office 3f, hung kuo building. no.167, tun-hwa north road, taipei (105) tel: <886> (2) 2718-3666 fax: <886> (2) 2718-8180 hitachi asia (hong kong) ltd. group iii (electronic components) 7/f., north tower, world finance centre, harbour city, canton road, tsim sha tsui, kowloon, hong kong tel: <852> (2) 735 9218 fax: <852> (2) 730 0281 telex: 40815 hitec hx hitachi europe ltd. electronic components group. whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 778322 hitachi europe gmbh electronic components group dornacher stra b e 3 d-85622 feldkirchen, munich germany tel: <49> (89) 9 9180-0 fax: <49> (89) 9 29 30 00 hitachi semiconductor (america) inc. 179 east tasman drive, san jose,ca 95134 tel: <1> (408) 433-1990 fax: <1>(408) 433-0223 for further information write to:

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