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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Charging | | | | | | | | | | • Reference: Examples of 5-V charging circuits | | | | | | | | | | Standard circuits For D2 , select a diode of small inverse current(lR=1jiA below / 5V) Di, D2 : MA716(Diode type code) D3 : MA704, MA700 | | | | | | D3 | | | | | | | | | | ( + )<D- 5V I-ft ( - )0— | | | | | | | | | | Ri 2.2kfi | | R2 5.6kfi | | | | | | VL621 | | | | | | | | | | | | | | VL1220, VL1216 | | 750 fi | | 2000 fi | | | | | | | | | | | | | | VL | | | | | | VL2020 | | | | | | 200 fi | | 510fi | | | | | | | | | | | | | | | | | | VL2320, VL2330 | | | | | | 150fi | | 390 fi | | | | | | | | | | | | | | | | | | VL3032 | | | | | | 68 fi | | 160fi | | | | | | | | | | | | | | Simple economical circuits D : MA700 (Very small inverse current) | | | | | | 2 | | | | | | | | | | | | | | | | | | | | | | | | ^.^Load with 5V applied | 100 nA~10mA | 100 jiA below | | | | \ D,Vf | 0.2V~0.6V | 0~0.2V | | | | | Ri | R2 | R1 | R2 | | | | VL621 | 8.2kfi | 2.4kfi | 6.8kfi | 2.7kfi | | | | VL1220, VL1216 | 2000 fi | 510fi | 1500 fi | 560 fi | | | | VL2020 | 1300 fi | 330 fi | 470 fi | 180fi | | | | VL2320, VL2330 | 1100fi | 270 fi | 390 fi | 150fi | | | | VL3032 | 510fi | 120fi | 180fi | 68fi | | | | | | | | | | | | | | | | D | | | | | | | | | | t 5V I ( - >o- | | | | | | R1 | | | | | | _IV | | | | | | | | | | | | | | R2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ZD | D1 | R1 | | | | | | A | MA3036L | MA704 | 300 fi | Common to all types | | | | ZU | B | MA3036H | MA700 | 270 fi | | | | | | | | | | | | | | | | | | | | | | CD -7 | | | | | | | | | | B> 3 B) i u 3 P <D 3 o i d <D i t i u 3 C i 3' y 73 <D B) rf o i at V <D i | | | | | | | | | | ITI Chapter 3- 58 | | | | | | | | | Panasonic | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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