Please let me know about 2-point below of EV2004ES1.
【Question】
①About first charge problem
・Until voltage input to 4.5-minute (273 sec) progress.
⇒LED indication are fast charge mode. But charging current is 200mA.
・After 4.5 minute (273sec) passage
⇒LED indication are fast charge mode. Charging current is 2.2A. (Normaly)
Is there a way to settle this movement?
The waveform is below.
※50mV/Div, Plobe: TDP1000(Tektronix), LED1(green): OFF and LED2(red): ON⇒Fast charge mode
・0 min ~ 10 min waveform
・10 min ~ waveform
②About Rsns resistance value
User's manual is written on Rsns:0.2Ω.
But customer measured DV2004ES1's Rsns, it was 0.1Ω.
※Please see picture
Why defference of User's manual and EVM?
【Customer setteing】
①Vin: 12V
②Electric Load: 7.2V(CV mode)
Or, NiMH battery: 1.2V × 6-cell=7.2V
③Configuration
・JP1(#INH-pin): High
・JP2(DSEL-pin): Low
・JP3(VSEL input): Floating
・JP4(TM1-pin): High
・JP5(TM2-pin): Low
・JP6(RB resistance): RB22(100kΩ)
・JP7(#DCMD-pin): Open
Best regards,
Satoshi