Datasheet AP431I (Diodes) - 7

NOT RECOMMENDED FOR NEW DESIGN USE AP431S AP431i Performance Characteristics Reference Voltage vs. Ambient Temperature Reference Current vs. Ambient Temperature
2.520 0.36 0.34 R1=10K, R2=Infinite 2.515 V =V KA REF I =1mA I =1mA 0.32 KA 2.510 KA 0.30 2.505 A) 0.28 (V) ( e t 0.26 2.500 g n atl 0.24 rre 2.495 u Vo C 0.22 ce 2.490 n ce 0.20 n re e re f 2.485 0.18 e e f e R 0.16 R 2.480 0.14 2.475 0.12 2.470 0.10 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 Ambient Temperature (oC) Ambient Temperature (oC)
Minimal Cathode Current for Regulation Minimal Cathode Current for Regulation at Different Ambient Temperature
200 200 V =V V =V 150 175 KA REF KA REF T =25oC T =-40oC A A 100 I (MIN) 150 T =25oC KA A A) A) T =125oC A ( 50 ( 125 t t n n rre rre u 0 100 u C C e I (MIN) e KA d -50 d 75 o o ht ht a a -100 C 50 C -150 25 -200 0 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Cathode Voltage (V) Cathode Voltage (V)
Cathode Current vs. Cathode Voltage Ratio of Delta Reference Voltage to Delta Cathode Voltage vs. Case Temperature
100 0.5 80 0.4 V =3V to 36V V =V KA KA REF I =1mA 60 KA T =25oC 0.3 A A) 0.2 (m 40 tn V) 20 0.1 rre u (mV/ C 0 0.0 e KA d V  o -20 / -0.1 h F t E a R C -40 V -0.2  -60 -0.3 -80 -0.4 -100 -0.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 125 Cathode Voltage (V) Case Temperature (oC) AP431i 7 of 17 July 2017 Document number: DS37535 Rev. 7 - 3
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