Datasheet LT3471 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN |
| Pages / Page | 16 / 8 — APPLICATIONS INFORMATION. Supply Current of Figure 2 During. Start-Up … |
| File Format / Size | PDF / 307 Kb |
| Document Language | English |
APPLICATIONS INFORMATION. Supply Current of Figure 2 During. Start-Up without Soft-Start RC Network
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Text Version of Document
LT3471
APPLICATIONS INFORMATION
L1 2.2μH D1 V V OUT1 IN 7V R 10 C R3 C3 SS1 PL CONTROL 1 4.7k 33pF 90.9k 4.7μF 9 SW1 1.8V 1 SHDN/SS1 FB1N 0V 2 C R4 SS1 FB1P 0.33μF 15k 3 V V REF IN 8 C2 2.6V TO 4.2V VIN LT3471 0.1μF Li-Ion 10μF 5 RSS2 R2 CONTROL 2 FB2N 4.7k 15k 1.8V 7 SHDN 4 /SS2 FB2P 0V C GND SW2 SS2 3471 F02 0.33μF 11 6 L2 C5 L3 C6 R1 10μH 1μF 15μH 75pF 105k VOUT2 VIN –7V C4 D2 10μF C1, C2: X5R OR X7R 6.3V D1, D2: ON SEMICONDUCTOR MBRM-120 C3, C4: X5R OR X7R 10V L1: SUMIDA CR43-2R2 C5: XR5 OR X7R 16V L2: SUMIDA CDRH4D18-100 CPL: OPTIONAL L3: SUMIDA CDRH4D18-150
Supply Current of Figure 2 During Supply Current of Figure 2 During Start-Up without Soft-Start RC Network Start-Up with Soft-Start RC Network
VIN = 3.3V ISUPPLY VIN = 3.3V 0.5A/DIV ISUPPLY 0.5A/DIV V V IN > VSHDN/SS V OUT1 VOUT1 IN > VSHDN/SS 2V/DIV 2V/DIV 3471 F02b 3471 F02c 0.1ms/DIV 0.2ms/DIV
Figure 2. Li-Ion OLED Driver
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APPLICATIONS INFORMATION
L1 2.2μH D1 V V OUT1 IN 7V R 10 C R3 C3 SS1 PL CONTROL 1 4.7k 33pF 90.9k 4.7μF 9 SW1 1.8V 1 SHDN/SS1 FB1N 0V 2 C R4 SS1 FB1P 0.33μF 15k 3 V V REF IN 8 C2 2.6V TO 4.2V VIN LT3471 0.1μF Li-Ion 10μF 5 RSS2 R2 CONTROL 2 FB2N 4.7k 15k 1.8V 7 SHDN 4 /SS2 FB2P 0V C GND SW2 SS2 3471 F02 0.33μF 11 6 L2 C5 L3 C6 R1 10μH 1μF 15μH 75pF 105k VOUT2 VIN –7V C4 D2 10μF C1, C2: X5R OR X7R 6.3V D1, D2: ON SEMICONDUCTOR MBRM-120 C3, C4: X5R OR X7R 10V L1: SUMIDA CR43-2R2 C5: XR5 OR X7R 16V L2: SUMIDA CDRH4D18-100 CPL: OPTIONAL L3: SUMIDA CDRH4D18-150
Supply Current of Figure 2 During Supply Current of Figure 2 During Start-Up without Soft-Start RC Network Start-Up with Soft-Start RC Network
VIN = 3.3V ISUPPLY VIN = 3.3V 0.5A/DIV ISUPPLY 0.5A/DIV V V IN > VSHDN/SS V OUT1 VOUT1 IN > VSHDN/SS 2V/DIV 2V/DIV 3471 F02b 3471 F02c 0.1ms/DIV 0.2ms/DIV
Figure 2. Li-Ion OLED Driver
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