NJM2146B -1- ver.2003-07-18 voltage and current control ic general description package outline the NJM2146B is a voltage and current control ic which contains single-supply low offset voltage op-amp (2mv max.), low operating op-amp, and precision voltage reference. it is suitable for battery charger, second controller of switching regulator systems, and other battery systems. features operating voltage (2.5v to 18v) internal precision voltage reference (1.5v1%) pc terminal current (60ma max.) operating current (3ma max.) bipolar technology package outline dip8, dmp8, vsp8 pin configuration absolute maximum ratings (t a =25c) parameter symbol ratings unit supply voltage v + 20 v differential input voltage v id (ach) 20 (bch) 4 v power dissipation p d (dip8) 500 (dmp8) 300 (vsp8) 320 mw pc terminal current i pc 60 ma operating temperature range t opr -40 to 85 c storage temperature range t stg -50 to 150 c (note) when the supply voltage is less than 20v, the absolute maximum input voltage is equal to the supply voltage. recommended operating conditions (t a =25c) parameter symbol ratings unit operating voltage v opr 2.5 to 18 v NJM2146Bm NJM2146Bd NJM2146Br pin function 1. pc 2. a-input 3. a+input 4. gnd 5. b+input 6. b-input 7. v ref 8. v +
NJM2146B - 2 - ver.2003-07-18 electrical characteristics (v + =5v, t a =25c) parameter symbol conditions min. typ. max. unit operating current i cc i pc =off - 1 3 ma leakage current i pcleak v + =v pc =20v - - 100 a saturation voltage v pc(sat) i pc =50ma - 0.5 0.7 v reference voltage v ref i ref =0ma 1485 1500 1515 mv reference voltage load regulation ? v ref / ? i ref i ref =0 to 5ma - - 30 mv [ach] parameter symbol conditions min. typ. max. unit input offset voltage v io - 0.5 2 mv input offset current i io - 5 50 na input bias current i b - 80 250 na large signal voltage gain a v - 80 - db input common mode voltage range v icm 0 to 3 - - v common mode rejection ratio cmr - 90 - db supply voltage rejection ratio svr - 80 - db slew rate sr - 0.8 - v / s gain bandwidth product gb f=10khz - 2 - mhz [bch] parameter symbol conditions min. typ. max. unit input offset voltage v io - 1 6 mv input offset current i io - 10 50 na input bias current i b - 100 300 na large signal voltage gain a v - 80 - db input common mode voltage range v icm 1.0 to 4.4 - - v common mode rejection ratio cmr - 90 - db supply voltage rejection ratio svr - 80 - db slew rate sr a v =1, v in =2.5v1v - 0.5 - v / s gain bandwidth product gb f=10khz - 1 - mhz typical application
NJM2146B - 3 - ver.2003-07-18 typical characteristics ach voltage gain, phase margin vs. frequency bch voltage gain, phase margin vs. frequency operating current vs. operating voltage reference voltage vs. operating voltage saturation voltage vs. pc terminal current reference voltage vs. 7pin output current
NJM2146B - 4 - ver.2003-07-18 typical characteristics operating current vs. temperature saturation voltage vs. temperature reference voltage vs. temperature input offset voltage vs. temperature input offset current vs. temperature input bias current vs. temperature
NJM2146B - 5 - ver.2003-07-18 [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
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