bl galaxy electrical production specification programmable shunt regulator BL431 document number: bl/sssr171 www.galaxycn.com rev.a 1 features z programmable output voltage to 36 volts. z low dynamic output impedance 0.20 typical z sink current capability of 1.0 to 100ma z equivalent full-range tem perature coefficient of 50ppm/ typical z temperature compensated for operation over full rated operating temperature range z low output noise voltage sot-23 z fast turn-on response ordering information type no. marking package code BL431 431 sot-23 maximum rating @ ta=25 unless otherwise specified parameter symbol limits unit cathode voltage v ka 37 v cathode current range(continuous) i ka -100~+150 ma reference input current range i ref 0.05~-10 ma power dissipation d,z suffix package n suffix package p d 770 1000 mw operating temperature range t opr -25~+85 storage temperature range t stg -65to+150 recommended operating conditions parameter symbol min typ max unit cathode voltage v ka v ref - 36 v cathode current i ka 1.0 - 100 ma pb lead-free
bl galaxy electrical production specification programmable shunt regulator BL431 document number: bl/sssr171 www.galaxycn.com rev.a 2 electrical characteristics @ ta=25 unless otherwise specified parameter symbol conditions min. typ. max. unit reference input voltage v ref v ka =v ref ,i ka =10ma 2.44 2.495 2.55 v deviation of reference input voltage over-temperature (note1) ? v ref / ? t v ka =v ref ,i ka =10ma, t min t a t max 4.5 17 mv ? v ka =10v-v ref -10 -2.7 ratio of change in reference input voltage to the change in cathode voltage ? v ref / ? v ka i ka = 10ma ? v ka =36v-10v -0.5 -2.0 mv/v reverse input current i ref i ka =10ma, r 1 =10k ? ,r 2 = 1.5 4 a deviation of reference input currrent over full temperature range ? i ref / ? t i ka =10ma, r 1 =10k ? ,r 2 = t a =full range 0.4 1.2 a minimun cathode current for regulation i ka(min v ka = v ref 0.45 1.0 ma off-stage cathode current i ka(off) v ka =36v, v ref =0 0.05 1.0 a dynamic impedance(note2) z za v ka = v ref , i ka =1 to 100ma f 1.0khz 0.15 0.5 ? ?t min =-25 ,t max =+85 typical characteristics @ ta=25 unless otherwise specified
bl galaxy electrical production specification programmable shunt regulator BL431 document number: bl/sssr171 www.galaxycn.com rev.a 3
bl galaxy electrical production specification programmable shunt regulator BL431 document number: bl/sssr171 www.galaxycn.com rev.a 4 package outline plastic surface mounted package sot-23 soldering footprint unit : mm package information sot-23 dim min max a 2.85 2.95 b 1.25 1.35 c 1.0typical d 0.37 0.43 e 0.35 0.48 g 1.85 1.95 h 0.02 0.1 j 0.1typical k 2.35 2.45 all dimensions in mm device package shipping BL431 sot-23 3000/tape&reel
|
