description the rad hard sgr117a 3-terminal positive adjustable regulators have been designed to meet the most stringent space and strategic level radiation requirements while meeting the industry standard lm117a and lm117 electrical specifications. in addition to the features of the standard sgr117a, these devices are capable of meeting the attached data sheet electricals after the following radiation events: total dose: exceeds 1 meg rad neutron fluence: 5x10 12 n/cm2 features full electrical performance after radiation exposure 1 meg rad total dose 5x10 12 n/cm2 1% output voltage tolerance 0.01%/v line regulation 0.3% load regulation min. 1.5a output current available in to-257 package (hermetic to-220) high reliability features-sgr117a radiation data available available to mil-std-883 lmi level "s" processing available sgr117a advanced data sheet rad hard 1.5 amp three terminal adjust able voltage regulator schematic diagram 3/91 rev 1.3 10/02 l infinity microelectronics inc. copyright ? 1994 11861 western avenue garden grove, ca 92841 1 (714) 898-8121 fax: (714) 893-2570
sgr117a 3/91 rev 1.3 10/02 l infinity microelectronics inc. copyright ? 1994 11861 western avenue garden grove, ca 92841 2 (714) 898-8121 fax: (714) 893-2570 power dissipation ....................................... input to output voltage differential .................................. storage temperature range ......................... absolute maximum ratings (note 1) internally limited 40v -65 c to 150 c operating junction temperature hermetic (k, r, t, ig-packages) .................................... lead temperature (soldering, 10 seconds) .............. 150 c 300 c note 1. exceeding these ratings could cause damage to the device. thermal data k package: thermal resistance- junction to case , q jc ................. 3.0c/w thermal resistance- junction to ambient , q ja .............. 35c/w r package: thermal resistance- junction to case , q jc ................. 5.0c/w thermal resistance- junction to ambient , q ja ............. 40c/w t package: thermal resistance- junction to case , q jc .................. 15c/w thermal resistance- junction to ambient , q ja ........... 120c/w ig package: thermal resistance- junction to case , q jc ................. 3.5c/w thermal resistance- junction to ambient , q ja ............. 42c/w note a. junction temperature calculation: t j = t a + (p d x q ja ). note b. the above numbers for q jc are maximums for the limiting thermal resistance of the package in a standard mount- ing configuration. the q ja numbers are meant to be guidelines for the thermal performance of the device/pc- board system. all of the above assume no ambient airflow. input voltage range ................................. (v out + 3.5v) to 37v operating junction temperature range sgr117a ........................................................-55c to 150c recommended operating conditions (note 2 & 3) units sgr117a min. typ. max. min. typ. max. sgr117a parameter test conditions i out = 10ma t a = 25c 3v (v in - v out ) 40v, p p max , 10ma i out i max 3v (v in - v out ) 40v, i l = 10ma t a = 25c t a = t min to t max 10ma i out i max v out 5v, t a = 25c v out 3 5v, t a = 25c v out 5v v out 3 5v t a = 25c, 20ms pulse v out = 10v, f =120hz c adj = 1 m f, t a = 25c c adj = 10 m f 10ma i out i max , 2.5v (v in - v out ) 40v reference voltage line regulation (note 4) load regulation (note 4) thermal regulation (note 5) ripple rejection adjust pin current adjust pin current change note 2. range over which the device is functional. note 3. these ratings are applicable for junction temperatures of less than 150c. electrical characteristics (unless otherwise specified, these specifications apply over full operating ambient temperatures for sgr117 with -55c t a 125c, v in - v out = 5.0v, and for i out = 500ma (k and ig), and i out = 100ma (t package). although power dissipation is internally limited, these specifications are applicable for power dissipations of 2w for the t package, and 20w for the k and ig packages. i max is 1.5a for the k and ig packages and 500ma for the t package. low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperatur e.) pre rad post neutron 5 x 1012 n/cm2 1.220 1.220 66 1.262 1.270 0.01 0.02 15 0.3 50 1 0.02 100 5 1.238 1.225 66 1.250 1.250 0.005 0.01 5 0.1 20 0.3 0.002 65 80 50 0.2 1.25 0.01 0.02 5 0.1 20 0.3 0.03 65 80 50 0.2 1.275 1.275 0.03 0.05 50 1 50 1 0.07 100 8 v v %/v %/v mv % mv % %/w db db a a
sgr117a 3/91 rev 1.3 10/02 l infinity microelectronics inc. copyright ? 1994 11861 western avenue garden grove, ca 92841 3 (714) 898-8121 fax: (714) 893-2570 electrical characteristics (continued) pre rad post neutron 5 x 1012 n/cm2 units sgr117a min. typ. max. min. typ. max. sgr117a (v in - v out ) = 40v (v in - v out ) 15v k, r, ig packages t package (v in - v out ) = 40v, t j = 25c k, r, ig packages t package t a = 125c, 1000 hours t a = 25c, 10hz f 10 khz (note 5) 1.5 0.5 0.3 0.15 3.5 2.2 0.8 0.4 0.2 8ma a a a a % % % minimum load current current limit temperature stability (note 5) long term stability (note 5) rms output noise (% of v out ) test conditions parameter 1.5 0.5 0.3 0.15 3.5 2.2 0.8 0.4 0.2 1 0.3 0.001 5 2 1 note 4. regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. changes in output vo ltage due to heating effects are covered under the specification for thermal regulation. note 5. these parameters, although guaranteed, are not tested in production. connection diagrams & ordering information (see notes below) ambient temperature range part no. package connection diagram 3-terminal to-3 metal can k-package sgr117ak -55c to 125c sgr117ak/883b -55c to 125c 2 1 adjustment case is v out v in 3-terminal to-66 metal can r-package sgr117ar -55c to 125c sgr117ar/883b -55c to 125c 1 2 adjustment case is v out v in 3-pin to-39 metal can t-package sgr117at -55c to 125c sgr117at/883b -55c to 125c 3-pin hermetic to-257 ig-package (isolated) sgr117aig/883b -55c to 125c sgr117aig -55c to 125c v in v out adjust v out adjust 3 2 1 v in case is v out note 1. contact factory for jan and desc product availability. 2. all parts are viewed from the top.
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