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ba ? st / ba ? sfp series regulator ics 1/11 regulator, low drop-out type with on/off switch ba ? st / ba ? sfp series the ba ? st and ba ? sfp series are variable, fixed output low drop-out type voltage regulators with an on/off switch. these regulators are used to provide a stabilized output voltage from a fluctuating dc input voltage. fixed output voltages are 3.3v, 5v, 6v(sfp), 7v, 8v, 9v, 10v(st), 12v(st). the maximum current capacity is 1 a for each of the above voltages. ! application constant voltage power supply ! ! ! ! features 1) built-in overvoltage protection circuit, overcurrent protection circuit and thermal shutdown circuit 2) to220fp-5, to252-5 standard packages can be accomodated in wide application. 3) 0 a (design value) circuit current when switch is off 4) richly diverse lineup. 5) low minimum i/o voltage differential. ! ! ! ! product codes output voltage (v) product no. output voltage (v) product no. variable ba00ast / asfp 8.0 ba08st / sfp 9.0 ba09st / sfp 3.3 ba033st / sfp 10.0 ba10st 5.0 ba05st / sfp 12.0 ba12st 6.0 ba06sfp 7.0 ba07st / sfp ! ! ! ! absolute maximum ratings (ta=25 c) parameter symbol limits unit power supply voltage v cc 35 v power dissipation pd 2000 *1 to220fp-5 to252-5 1000 *2 mw operating temperature topr -40~+85 ?c storage temperature tstg -55~+150 ?c peak applied voltage vsurge 50 *3 v *1 reduced by 16mw for each increase in ta of 1?c over 25?c. *2 reduced by 8mw for each increase in ta of 1?c over 25?c. *3 voltage application time : 200 msec. or less
ba ? st / ba ? sfp series regulator ics 2/11 ! ! ! ! block diagram 4 5 2 3 1 out ? + reference voltage gnd v cc ctl c 4 2 3 1 out ? + + + gnd v cc ctl variable output type (ba00ast / asfp) fixed output type reference voltage ! ! ! ! pin descriptions pin name 1 ctl output on/off 2v cc 3 gnd 4 out 5 c n.c. power supply input ground output pin no. function reference power supply pin for setting voltage with the ba00ast/asfp. in the baoost/sfp series, these are nc pins, except for the ba00ast/asfp.
ba ? st / ba ? sfp series regulator ics 3/11 ! ! ! ! recommended operating conditions ba00ast / asfp ba08st / sfp parameter symbol min. max. unit input voltage 25 v -1 a 4 output current v cc i o parameter symbol min. max. unit 925 v -1 a v cc i o input voltage output current ba033st / sfp ba09st / sfp parameter symbol min. max. unit 4.3 25 v - 1 a v cc i o input voltage output current parameter symbol min. max. unit 10 25 v - 1 a v cc i o input voltage output current ba05st / sfp ba10st parameter symbol min. max. unit 6 25 v - 1 a v cc i o input voltage output current parameter symbol min. max. unit 11 25 v -1 a v cc i o input voltage output current ba06sfp ba12st parameter symbol min. max. unit 725 v - 1 a v cc i o input voltage output current parameter symbol min. max. unit 13 25 v - 1a v cc i o input voltage output current ba07st / sfp parameter symbol min. max. unit 8 v - 1a 25 v cc i o input voltage output current ! ! ! ! electrical characteristics ba00ast / asfp (unless otherwise noted, ta=25 c, vcc=10v, io=500ma) parameter symbol min. typ. max. unit conditions measurement circuit reference voltage power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current v ref 1.200 1.225 1.250 v fig.1 v o - 5.0 - v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in =1vrms, f=120hz, i o =100ma fig.2 reg.l - 50 150 mv i o =5ma 1a fig.1 t cvo - 0.01 - % / ? ci o =5ma, tj=0~125 ? c fig.1 v d - 0.3 0.5 v fig.3 i b - 2.5 5.0 ma i o =0ma fig.4 i o 1.0 1.5 - a tj=25 ? c fig.1 i os - 0.4 - a v cc =25v v cc =0.95v o ist - 0 10 a fig.4 off mode fig.5 vth1 2.0 - - v output active mode, i o =0ma fig.6 vth2 - - 0.8 v output off mode, i o =0ma fig.6 i in 100 200 300 a ctl=5v, i o =0ma fig.6 v cc =6 25v
ba ? st / ba ? sfp series regulator ics 4/11 ba033st / sfp (unless otherwise noted, ta=25 c, vcc=8 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current v o1 3.13 3.3 3.47 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in =1vrms, f=120hz, i o =100ma fig.2 reg.l - 50 150 mv i o =5ma 1a fig.1 t cvo - 0.02 - % / ? c i o =5ma, tj=0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 0.95v o fig.3 i b - 2.5 5.0 ma i o =0ma fig.4 1.0 1.5 - a tj=25 ? c fig.1 i os - 0.4 - a v cc =25v fig.5 vth1 2.0 - - v output active mode, i o =0ma fig.6 vth2 - - 0.8 v output off mode, i o =0ma fig.6 i in 100 200 300 a ctl=5v, i o =0ma fig.6 v cc =4=.3 25v i st -010 a fig.4 off mode i o ba05st / sfp (unless otherwise noted, ta=25 c, vcc=10 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 4.75 5.0 5.25 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in =1vrms, f=120hz, i o =100ma fig.2 reg.l - 50 150 mv i o =5ma 1a fig.1 t cvo - 0.02 - % / ? c i o =5ma, tj=0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc =4.75v fig.3 i b - 2.5 5.0 ma i o =0ma fig.4 1.0 1.5 - a tj=25 ? c fig.1 i os - 0.4 - av cc =25v fig.5 vth1 2.0 - - v output active mode, i o =0ma fig.6 vth2 - - 0.8 v output off mode, i o =0ma fig.6 i in 100 200 300 a ctl=5v, i o =0ma fig.6 v cc =6 2=5v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode i o ba06sfp ( unless otherwise noted, ta=25 c, vcc=11 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 5.7 6.0 6.3 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in =1vrms, f=120hz, i o =100ma fig.2 reg.l - 50 150 mv i o =5ma 1a fig.1 t cvo - 0.02 - % / ? c i o =5ma, tj=0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc =5.7v fig.3 i b - 2.5 5.0 ma i o =0ma fig.4 i o 1.0 1.5 - a tj=25 ? c fig.1 i os - 0.4 - av cc =25v fig.5 vth1 2.0 - - v output active mode, i o =0ma fig.6 vth2 - - 0.8 v output off mode, i o =0ma fig.6 i in 100 200 300 a ctl=5v , i o =0ma fig.6 v cc =7 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode
ba ? st / ba ? sfp series regulator ics 5/11 ba07st / sfp (unless otherwise noted, ta=25 c, vcc=12 v, io=500 ma) (under development) parameter symbol min. typ. max. unit conditions measurement circuit v o1 6.65 7.0 7.35 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in = 1vrms, f = 120hz, i o = 100ma fig.2 reg.l - 50 150 mv i o = 5ma 1a fig.1 t cvo - 0.02 - % / ? c i o = 5ma, tj = 0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 6.65v fig.3 i b - 2.5 5.0 ma i o = 0ma fig.4 i o 1.0 1.5 - a tj = 25 ? c fig.1 i os - 0.4 - a v cc = 25v fig.5 vth1 2.0 - - v output active mode, i o = 0ma fig.6 vth2 - - 0.8 v output off mode, i o = 0ma fig.6 i in 100 200 300 a ctl = 5v , i o = 0ma fig.6 v cc = 8 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode ba08st / sfp (unless otherwise noted, ta=25 c, vcc=13 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 7.6 8.0 8.4 v fig.1 fig.4 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in =1vrms, f=120hz, i o =100ma fig.2 reg.l - 50 150 mv i o =5ma 1a fig.1 t cvo - 0.02 - % / ? c i o =5ma, tj=0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 0.95v o fig.3 i b - 2.5 5.0 ma i o =0ma fig.4 i o 1.0 1.5 - a tj=25 ? c fig.1 i os - 0.4 - a v cc =25v fig.5 vth1 2.0 - - v output active mode , i o = 0ma fig.6 vth2 - - 0.8 v output off mode , i o = 0ma fig.6 i in 100 200 300 a ctl=5v , i o = 0ma fig.6 v cc 9 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a off mode ba09st / sfp (unless otherwise noted, ta=25 c, vcc=14 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 8.55 9.0 9.45 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in = 1vrms, f = 120hz, i o = 100ma fig.2 reg.l - 50 150 mv i o = 5ma 1a fig.1 t cvo - 0.02 - % / ? c i o = 5ma, tj = 0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 0.95v o fig.3 i b - 2.5 5.0 ma i o = 0ma fig.4 i o 1.0 1.5 - a tj = 25 ? c fig.1 i os - 0.4 - a v cc = 25v fig.5 vth1 2.0 - - v output active mode , i o = 0ma fig.6 vth2 - - 0.8 v output off mode , i o = 0ma fig.6 i in 100 200 300 a ctl = 5v , i o = 0ma fig.6 v cc = 10 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode
ba ? st / ba ? sfp series regulator ics 6/11 ba10st (unless otherwise noted, ta=25 c, vcc=15 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 9.5 10 10.5 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in = 1vrms, f = 120hz, i o = 100ma fig.2 reg.l - 50 150 mv i o = 5ma 1a fig.1 t cvo - 0.02 - % / ? c i o = 5ma, tj = 0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 0.95v o fig.3 i b - 2.5 5.0 ma i o = 0ma fig.4 i o 1.0 1.5 - a tj = 25 ? c fig.1 i os - 0.4 - av cc = 25v fig.5 vth1 2.0 - - v output active mode, i o = 0ma fig.6 vth2 - - 0.8 v output off mode, i o = 0ma fig.6 i in 100 200 300 a ctl = 5v , i o = 0ma fig.6 v cc = 11 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode ba12st (unless otherwise noted, ta=25 c, vcc=17 v, io=500 ma) parameter symbol min. typ. max. unit conditions measurement circuit v o1 11.4 12 12.6 v fig.1 reg.i - 20 100 mv fig.1 r.r. 45 55 - db e in = 1vrms, f = 120hz, i o = 100ma fig.2 reg.l - 50 150 mv i o = 5ma 1a fig.1 t cvo - 0.02 - % / ? c i o = 5ma, tj = 0 ~ 125 ? c fig.1 v d - 0.3 0.5 v v cc = 0.95v o fig.3 i b - 2.5 5.0 ma i o = 0ma fig.4 i o 1.0 1.5 - a tj = 25 ? c fig.1 i os - 0.4 - a v cc = 25v fig.5 vth1 2.0 - - v output active mode, i o = 0ma fig.6 vth2 - - 0.8 v output off mode, i o = 0ma fig.6 i in 100 200 300 a ctl = 5v , i o = 0ma fig.6 v cc = 13 25v power save current output voltage input stability ripple rejection ratio load regulation temperature coefficient of output voltage minimum i/o voltage differential bias current peak output current output short-circuit current on mode voltage off mode voltage input high level current i st -010 a fig.4 off mode
ba ? st / ba ? sfp series regulator ics 7/11 ! ! ! ! measurement circuits ( the c pin only exists on the ba00ast / asfp, for the ba00ast / asfp, place a 6.8k ? resistor between the out and c pins, and a 2.2k ? resisitor between the c and pins.) fig.1 measurement circuit for output voltage, input stability, load regulation, and temperature coefficient of output voltage v 22 f 0.33 f v cc i o out v cc gnd ctl 5v *c + fig.2 measurement circuit for ripple rejection ratio ripple rejection ratio r.r. = 20 log ( e in e out ) v v 22 f 0.33 f 100 f v cc i o =100ma out v cc gnd e in e in =1v rms f=120hz e out 10 ? 5w 5v ctl *c + fig.3 measurement circuit for minimum i/o voltage differential 22 f 0.33 f v cc= 0.95v o i o= 500ma out v cc gnd v 5v ctl *c + fig.4 measurement circuit for bias current, power save current measurement circuit 22 f 0.33 f v cc out v cc gnd a ctl *c + fig.5 measurement circuit for output short-circuit current 22 f 0.33 f v cc i os out v cc gnd a ctl 5v + *c fig.6 measurement circuit for on/off mode voltage, input high level current 22 f 0.33 f v cc out v cc v ctl a gnd *c +
ba ? st / ba ? sfp series regulator ics 8/11 ! ! ! ! operation notes (1) operating power supply voltage when operating within the normal voltage range and within the ambient operating temperature range, most circuit functions are guaranteed. the rated values cannot be guaranteed for the electrical characteristics, but there are no sudden changes of the characteristics within these ranges. (2) power dissipation heat attenuation characteristics are noted on a separate page and can be used as a guide in judging power dissipation. if these ics are used in such a way that the allowable power dissipation level is exceeded, an increase in the chip temperature could cause a reduction in the current capability or could otherwise adversely affect the performance of the ic. make sure a sufficient margin is allowed so that the allowable power dissipation value is not exceeded. (3) output oscillation prevention and bypass capacitor be sure to connect a capacitor between the output pin and gnd to prevent oscillation. since fluctuations in the valve of the capacitor due to temperature changes may cause oscillations, a tantalum electrolytic capacitor with a small internal series resistance (esr) is recommended. a 22 f capacitor is recommended; however, be aware that if an extremely large capacitance is used (1000 f or greater), then oscillations may occur at low frequencies. therefore, be sure to perform the appropriate verifications before selecting the capacitor. also, we recommend connecting a 0.33 f bypass capacitor as close as possible between the input pin and gnd. (4) current overload protection circuit a current overload protection circuit is built into the outputs, to prevent ic destruction if the load is shorted. this protection circuit limits the current in the shape of a fall back characteristics. it is designed with a high margin, so t hat even if a large current suddenly flows through the large capacitor in the ic, the current is restricted and latching is prevented. however, these protection circuits are only good for pre-venting damage from sudden accidents. the design should take this into consideration, so that the protection circuit is not made to operate continuously (for instance, clamping at an output of 1v f or greater; below 1v f , the short mode circuit operates). note that the capacitor has negative temperature characteristics, and the design should take this into consideration. (5) thermal overload circuit a built-in thermal overload circuit prevents damage from overheating. when the thermal circuit is activated, the various outputs are in the off state. when the temperature drops back to a constant level, the circuit is restored. (6) internal circuits could be damaged if there are modes in which the electric potential of the application?s input (v cc ) and gnd are the opposite of the electric potential of the various outputs. use of a diode or other such bypass path is recommended. (7) although the manufacture of this product includes rigorous quality assurance procedures, the product may be damaged if absolute maximum ratings for voltage or operating temperature are exceeded. if damage has occurred, special modes (such as short circuit mode or open circuit mode) cannot be specified. if it is possible that such special modes may be needed, please consider using a fuse or some other mechanical safety measure. (8) when used within a strong magnetic field, be aware that there is a slight possibility of malfunction.
ba ? st / ba ? sfp series regulator ics 9/11 (9) when the connected load which contains a big inductance component in an output terminal is connected and the occurrence of a reverse electromotive force can be considered at the time of and power-output off at the time of starting, i ask the insertion of protection diode of you. (example) output pin (10) although it is sure that the example of an application circuit should be recommended, in a usage, i fully ask the validation of a property of you. in addition, when you alter the circuit constant with outside and you become a usage, please see and decide sufficient margin in consideration of the dispersion in an external component and ic of our company etc. not only including the static characteristic but including a transient characteristic. this ic is monolithic ic and has p+ isolation and p substrate for an isolation between each element. a p-n junction is formed by these p layers and n layers of each element, and various kinds of parasitic elements are formed. for example, when the resistor and the transistor are connected with the pin like the example of a simple architecture, ? at a resistor, it is at the time of gnd > (pin a), at a transistor (npn), it is at the time of gnd > (pin b), a p-n junction operates as parasitism diode. ? at a transistor (npn), it is at the time of gnd > (pin b), the npn transistor of a parasitic element operates by n layers of other elements which approach with the above-mentioned parasitism diode. a parasitic element is inevitably made according to a potential relation on the architecture of ic. when a parasitic element operates, the interference of a circuit operation is caused and the cause of a malfunction, as a result a destructive is obtained. therefore, please be fully careful of impressing a voltage lower than gnd(p substrate) to an input/output terminal etc. not to carry out usage with which a parasitic element operates.
ba ? st / ba ? sfp series regulator ics 10/11 (pin a) (pin a) resistor p substrate n gnd gnd n p n p + p + parasitic elements parasitic elements (pin b) transistor (npn) p substrate n c b e gnd n n p n p + p + parasitic elements parasitic elements gnd (pin b) gnd c e b other approaching elements the example of a simple architecture of bipolar ic ! ! ! ! electrical characteristic curves (3)6.5 (4)2.0 0 25 50 75 100 125 150 ambient temperature : ta( ? c) power dissipation : pd (w) 25 20 15 10 5 fig. 7 thermal derating curves (to220fp-5) (1) infinite heat sink (2) alumina pcb, 100 100 2 mm 2 (3) alumina pcb, 50 50 2 mm 2 (4) ic alone (1)22.0 (2)11.0 12.5 10 7.5 5 2.5 0 25 50 75 100 125 150 (1) infinite heat sink is used j-c = 12.5 ( c/w) (2) ic simple substance j-a = 125.0 ( c/w) power dissipation : pd(w) (2)1.0 ambient temperature : ta ( c) (1)10.0 fig.8 thermal derating curves (to252-5) output voltage : v out (v) junction temperature : tj ( ? c) 0 1 2 3 4 5 25 50 75 100 125 150 175 200 6 v cc =10v i out =0 ba05st fig.9 thermal cutoff circuit characteristics
ba ? st / ba ? sfp series regulator ics 11/11 10 8 6 4 2 0 0 1.0 2.0 output voltage : v out (v) output current : i out (a) v cc =10v fig.10 current limit characteristics ba05st 6 5 4 3 2 1 0 01020304050 output voltage : v out (v) input voltage : v cc (v) ba05st fig.11 over voltage protection characteristics ! ! ! ! external dimensions (units: mm) to220fp-5 to252-5 1 0.8 1.80.2 8.00.2 12.00.2 13.5min. 3.20.1 0.850.2 1.2 2345 1.778 0.5 + 0.1 2.85 10.0 + 0.3 ? 0.1 7.0 17.0 + 0.4 ? 0.2 4.5 + 0.3 ? 0.1 2.8 + 0.2 ? 0.1 1pin : ctl 2pin : v cc 3pin : gnd 4pin : out 5pin : n.c. + 0.3 ? 0.1 6.5 0.2 1 2 3 5 4 0.8 0.5 1.27 0.5 0.1 1.5 2.5 9.5 0.5 2.3 0.2 0.5 0.1 5.1 ? 0.1 +0.2 5.5 0.2 1.0 0.2 7.0 0.2

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