17
R14
1.3 kΩ
R16 R15
200 kΩ 110 Ω
Q2
SW
| R8 |
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| 100 kΩ −INE1 8 | |
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| OUTC1 10 |
C10 5600 pF | ||
R9 | A | +INC1 13 |
| −INC1 12 | |
10 kΩ | B | |
R12 |
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30 kΩ |
| + |
R13 |
| INE1 9 |
| FB1 7 | |
30 kΩ |
| |
C8 | −INE2 4 | |
10000 pF |
| R10 | OUTC2 2 | |
R4 | 30 kΩ | +INC2 24 | |
R11 | |||
82 kΩ |
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R5 | 30 kΩ | −INC2 1 | |
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330 kΩ |
| +INE2 3 | |
R6 |
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68 kΩ |
| FB2 5 | |
| R7 | ||
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| 22 kΩ |
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| R18 |
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| 200 kΩ | − | |
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| INE3 16 | |
| C6 | R17 | |
| 1500 pF | 100 kΩ | |
| R3 | 11 | |
| 330 kΩ | OUTD | |
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| FB3 15 | |
| CS | CS 22 | |
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| 2200 pF |
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<Current Amp.1> | <Error | VREF |
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+ | Amp.1> |
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⋅ 25 | − |
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| IIN |
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− |
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| VCC (O) |
| VIN |
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+ |
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| 21 |
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| AC Adaptor | ||
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| + |
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| <PWM Comp.> |
| C5 | C1 |
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| 0.1 ∝F | − |
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| + | <OUT> |
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| 22 | ∝F | A B | |
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| OUT |
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| + |
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| + |
| Drive | 20 | Q1 |
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| − |
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| I1 | BATT | |||
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<Current Amp.2> | <Error | VREF | VCC |
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| L1 |
| RS |
| |
+ | Amp.2> |
| D1 | 12 | ∝H |
| 0.033 | Ω | ||
− |
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| + | + |
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⋅ 25 |
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| 19 | VH |
| Battery | ||||
− | + |
| Bias |
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| − | − |
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| Voltage | (VCC − 5 V) |
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| C2 | C3 |
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| <VH> |
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| 100 ∝F | 100 ∝F |
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Output voltage (Battery voltage) is adjustable
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| 2.5 V |
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| 1.5 V |
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| <UVLO> | VCC |
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| <Error |
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| VREF |
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| Amp.3> | (VCC UVLO) 215 kΩ |
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| − |
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| + |
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| + |
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| + |
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| − | 35 kΩ |
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| 4.2 V |
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| 0.91 V |
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| (0.77 V) |
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<SOFT> |
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| VREF |
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| UVLO |
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VREF |
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∝A |
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1 |
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| VCC | VCC |
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| bias |
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| 18 |
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| C7 |
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| CTL | ∝F | |
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| 0.1 | ||
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| <OSC> | <REF> | <CTL> | 14 | ||||
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| (45 pF) |
| VREF |
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| 17 | 6 | 5.0 V |
| 23 |
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| RT | VREF | GND |
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| RT |
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| Note : SW ON : DCC MODE | ||
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| 47 kΩ |
| C9 |
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| SW OFF : Dead Battery MODE | |
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| 0.1 ∝F |
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| Range of input voltage |
VIN=13V to 21V(at Load = 3A)