FA431ZCSR FS | Alldatasheet

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PROGRAMMABLE PRECISION REFERENCES The FA431ZCSR integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage reference operate as a low temperature coefficient zener which is programmable from V ref to 40 volts with two external resistors. with a typical dynamic impedance of 0.2Ω . replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 volt reference makes it convenient to obtain a stable reference from 5.0 volt logic supplies, and since the FA431ZCSR operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

FEATURES

Divice Code Name :FA431 + V ref Code + Package Code Low Dynamic Output Impedance : 0.2Ω (Typ.). Sink Current Capability of 1.0 to 100mA. Equivalent Full-Range Temperature Coefficient of 50ppm/℃ (Typ.). Low Output Noise Voltage. ITEM V ref Code Package Code FA431ZCSR Code Tolerance (%) Code Package C ±0.5 S SOT-23 These devices exhibit a wide operating current range of 1.0 to 100mA The characteristics of these references make them excellent 2013. 07. 18 1/5 SEMICO NDUCTOR TECH NICAL DATA FA431ZCSR Revision No : 0 DIM MILLIMETERS A B C D E 2.93 0.20 1.30+0.20/-0.15 0.45 2.40+0.30/-0.20 G 1.90 H J K L M N 0.95 0.13+0.10/-0.05 0.00 ~ 0.10 0.55

0.20 MIN

1.00+0.20/-0.10 M J K E 1 2 H G A N C B D 1.30 MAX L L P P P 7 + _ SOT-23 3. REFERENCE 2. ANODE 1. CATHODE Temperature Compensated for Operation Over Full Rated Operating Temperature Range. MARK: LA3

-2 0 K I - V CATHODE VOLTAGE V KA (V) CATHODE VOLTAGE V KA (V) CATHODE VOLTAGE V KA (V) -1 0 3 0 0 1 0 2 0 -100 -50 C A T H O D E C U R R E N T IK ( m A ) KA 100 150 40 20 0 10 1 0M 100k 10k 10M 1 0k FREQUENCY f (Hz) Zka - f FREQUENCY f (Hz) G VO - f 3 0 5 0 V O L T A G E S W I N G ( V ) 16 12 8 0 20 4 0 TIME t ( s) PULSE RESPONSE -24 C H A N G E I N R E F E R E N C E I N P U T -32 -16 -8 0 V O L T A G E V ( m V ) 100 0 1 1 0 -10 O P E N L O O P V O L T A G E G A I N G V O ( d B ) 800 600 K KA C A T H O D E C U R R E N T I (㎂) -200 2 0 1 0 0 3 0 -1 0 I - V K 200 400 V =V Ta=25 C KA ref A K f e r Ta=25 C V =V r e f Ta=25 C K I =10mA D Y N A M I C I M P E D A N C E Z k a (Ω) I =1 0mA~100mA Ta=25 C K 1 0k 10M 10k 100k 1 0M I =10mA Ta=25 C K 2 0 1 0 Ta=25 C OUTPUT INPUT V ref - V KA A L L O W A B L E P O W E R D I S S I P A T I O N PD ( m W ) 100 P D - Ta 25 50 75 100 125 150 175 200 300 400 500 600 700 800 1000 900 AMBIENT TEMPERATURE Ta ( C ) FA431ZCSR 2013. 07. 18 4/5 FA431ZCSR Revision No : 0

Flat Package (SMD Package) Elements mounting styles of electronic devices are gaining in further diversification over recent years, and needs for components are all the more expanding in varieties. Especially, surface mounting is steadily penetrating into industrial segments as a world-wide popular technical trend. Although exposure to high temperature is inevitable during soldering we recommend limiting the soldering temperature to low levels as shown in figure for the sake of retaining inherent excellent reliability. (a) When employing solder reflow method Atmospheric temperature around resin surfaces must be less than 240 , not exceeding the time length of 10 sec. Recommend temperature profile Precautions on heating method When resin in kept exposed to high temperature for a long time, device reliability may be marred. Therefore, it is essential to complete soldering in the shortest time possible to prevent temperature of resin from rising. (b) When employing halogen lamps or infrared-ray heaters When halogen lamps or infrared-ray heaters are used, avoid direct irradiation onto resin surfaces; such devices cause extensive localized temperature rise. Please keep a reflow solder operating when SMD package’s soldering. 60 sec. Time (sec.) Within 30 sec. Within 10 sec. Fig. 6 ) C ( e r u t a r e p m e t c i r e h p s o m o t A e r u t a r e p m e t e c a f u s n i s e r = 150 210 240 2013. 07. 18 5/5 FA431ZCSR Revision No : 0