l9820 high side driver operating supply voltage up to 25v dc current 0.3a r on < 800m w diagnostic and protection func- tions m p compatible enable input for stand-by mode description the l9820 high side driver realized with mul- tipower - bcd mixed technology, drives resistive or inductive loads with one side connected to ground. the enable input is ttl compatible and a diag- nostic output provides an indication of short circuit and device status (thermal and overvoltage shut- down). onchip thermal protection and short circuit protection are provided. september 2003 ? block diagram minidip so8 ordering numbers: l9820 l9820d multipower bcd technology 40m w 1/6
absolute maximum ratings symbol parameter value unit v s max forward voltage 50 vdc i r reverse bias current at -1.3v C0.46 a v 5 input voltage (to gnd) C0.3 to 20 v v 8 diag. output voltage (to gnd) C0.3 to 20 v v 1 output voltage (to gnd) C0.3 to 25 v i 4 supply current internally limited i 5 enable input current 0.5 ma i 8 diag. out current (sink) 10 ma i 1 output current internally limited t op operation temperature C40 to 85 c t j , t stg junction and storage temperature range C55 to 150 c t jp detecting temperature 150 c thermal data symbol parameter minidip so8 unit r th j-amb thermal resistance junction-ambient max. 100 200 c/w truth table h: high level l: low level enable function diag. status power status l operating off h l h normal operation h h h overvoltage protection on l l h overcurrent protection on l l h overtemperature protection on ll pin connection (top views) minidip so8 l9820 2/6
pin functions n. name description 1 power output the device is provided with short circuit protection. 4 power supply supply voltage input. 5 enable input ttl comp atible input. high level on this pin means output current on. the low level voltage switches off the charge pump, the power stage and the diagnostic output reducing to the minimum value the quiescent current. 7 ground this pin must be connected to ground. 8 diagnostic feedback the diagnostic circuit is active in input high level condition. this output detects with tipically 50 m s delay at t amb = 25 c the following faults: C overvoltage condition. C thermal shutdown. C short circuit. the power stage current is internally limited at 1.5a. the diagnostic output is active low. the diagnostic delay time allows to avoid spurious diagnosys(i.e.: turn on overcurrent, overvoltage spikes etc.). electrical characteristics (v s = 14.4v, C40 c t j +85 c, unless otherwise specified.) symbol parameter test condition min. typ. max. unit v s operating supply voltage 6 25 v r on on resistance input > 2v, t j = 25 c input > 2v, full t range 0.6 0.8 1.2 w w i off off state supply current t j < 35 c t j = 85 c 130 300 m a m a i on on state supply current 4 ma v el enable low level 0.8 v v eh enable high level 2 v i e enable current 0v < vi <5v 10 m a i leakd diagnostic output leakage current v cc = 5v diagnostic output high 10 m a v satd diagnostic output saturated voltage isink < 3.5ma 0.4 v t dd diagnostic delay time t j = 25 c30 m s t don output on delay time t j = 25 c30 m s t r output on rise time tj = 25 c 100 m s t doff output off delay time tj = 25 c80 m s t f output off fall time tj = 25 c 100 m s v don overvoltage detection on 25 v v dh overvoltage hysteresis 2 5 v i don overcurrent detection on 0.5 1.5 a t don overtemperature detection on 150 c t dh overtemperature hysteresis 25 50 c l9820 3/6
dim. mm inch min. typ. max. min. typ. max. a 1.75 0.069 a1 0.1 0.25 0.004 0.010 a2 1.65 0.065 a3 0.65 0.85 0.026 0.033 b 0.35 0.48 0.014 0.019 b1 0.19 0.25 0.007 0.010 c 0.25 0.5 0.010 0.020 c1 45 (typ.) d (1) 4.8 5.0 0.189 0.197 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 3.81 0.150 f (1) 3.8 4.0 0.15 0.157 l 0.4 1.27 0.016 0.050 m 0.6 0.024 s8 (max.) (1) d and f do not include mold flash or protrusions. mold flash or potrusions shall not exceed 0.15mm (.006inch). so8 outline and mechanical data l9820 4/6
outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 3.32 0.131 a1 0.51 0.020 b 1.15 1.65 0.045 0.065 b 0.356 0.55 0.014 0.022 b1 0.204 0.304 0.008 0.012 d 10.92 0.430 e 7.95 9.75 0.313 0.384 e2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 f 6.6 0.260 i 5.08 0.200 l 3.18 3.81 0.125 0.150 z 1.52 0.060 minidip l9820 5/6
iinformation furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsib ility for the cons equences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics product s are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2003 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia C belgium - brazil - canada - china C czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com l9820 6/6
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