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R2A20114ASPW5 Datasheet(PDF) 8 Page - Renesas Technology Corp |
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R2A20114ASPW5 Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 17 page  R2A20114AFP/ASP Preliminary R03DS0051EJ0100 Rev.1.00 Page 8 of 16 Aug 29, 2011 Electrical Characteristics (Ta = 25°C, VCC = 12 V, CT = 1000 pF, RT = 27 k , CS1, CS2 = GND, IRAMP = 10 k, BO = 1 V, VAC = 0 V, RS = 220 k , FMC = GND (*1), FM = GND (*2), FB = COMP) Item Symbol Min Typ Max Unit Test Conditions UVLO turn-on threshold Vuvlh 9.7 10.4 11.1 V UVLO turn-off threshold Vuvll 8.4 8.9 9.4 V UVLO hysteresis Hysuvl 1.0 1.5 2.0 V Standby current Istby — 100 160 A VCC = 8.9 V Supply Operating current Icc — 5 7.5 mA Output voltage Vref 4.85 5.00 5.15 V Isource = –1 mA Line regulation Vref-line — 5 20 mV Isource = –1 mA, VCC = 10 V to 24 V Load regulation Vref-load — 5 20 mV Isource = –1 mA to -5 mA VREF Temperature stability dVref — 80 — ppm/°C Ta = –40 to 125°C (* 3) Feedback voltage Vfb 2.462 2.500 2.538 V FB-COMP Short Input bias current (* 1) Ifb –0.5 –0.3 –0.05 A Measured pin: FB Input bias current (* 2) Ifb –1.3 –0.8 –0.25 A Measured pin: FB Open loop gain Av — 40 — dB (* 3) Upper clamp voltage Vclamp-comp 3.8 4.0 4.3 V FB = 2.0 V, COMP: Open Low voltage Vl-comp 0.0 0.1 0.3 V FB = 3.0 V, COMP: Open Source current Isrc-comp –190 –135 –80 A FB = 1.5 V, COMP = 2.5 V Sink current 1 Isnk-comp1 — 120 — A (* 3) Sink current 2 Isnk-comp2 220 320 420 A FB =3.5 V, COMP = 2.5 V Error amplifier Transconductance gm 120 200 290 s FB = 2.45 V ↔ 2.55 V, COMP = 2.5 V PFC enable voltage Von-pfc 0.74 0.82 0.9 V Input pin: BO Brownout PFC disable voltage Voff-pfc 0.73 0.81 0.89 V Input pin: BO Initial accuracy fout 70 78 86 kHz Measured pin: OUT, FMC = 0 V fout temperature stability dfout/dTa — 0.1 — %/°C Ta = –40 to 125°C (* 3) fout voltage stability fout-line –1.5 0.5 1.5 % VCC = 12 V to 18 V CT top voltage Vct-H — 3.6 4.0 V (* 3) RT voltage Vrt 1.15 1.25 1.35 V FMC sink current (* 1)/ FM sink current (* 2) Isnk-fmc (* 1)/ Isnk-fm (* 2) 6 11 16 A FMC = 1 V (* 1)/ FM = 1 V (* 2) FMC source current (* 1)/ FM source current (* 2) Iso-fmc (* 1)/ Iso-fm (* 2) –16.5 –11.5 –6.5 A FMC = 1 V (* 1)/ FM = 1 V (* 2) FM magnitude change dfm 19 24 29 kHz FMC = 5 V (* 1)/FM = 5 V (*2) (* 3, *4) FM frequency 1 (* 1) ffm1 0.25 0.38 0.5 kHz FMC = 6.8 nF, FMR = 4 V (* 4) FM frequency 2 (* 1) ffm2 14 25 35 kHz FMC = 220 pF, FMR = 1.2 V (* 4) Oscillator FM frequency (* 2) ffm 6 10 14 kHz FM = 220 pF (* 4) Notes: *1 Applied to R2A20114AFP *2 Applied to R2A20114ASP *3 Design Specification (Reference data) *4 Refer to the figure shown below: Switching frequency time dfm ffm = 1/T |
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