LT3471 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LT3471

Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN

Linear Technology 

LT3471

APPLICATIONS INFORMATION

CONTROL 1

1.8V

0V

VIN

2.6V TO 4.2V

Li-Ion

CONTROL 2

1.8V

0V

RSS1

4.7k

CSS1

0.33μF

10μF

RSS2

4.7k

CSS2

0.33μF

L1

2.2μH

VIN

9 SHDN/SS1

10

SW1

8

VIN

LT3471

D1

1

FB1N

FB1P 2

3

VREF

CPL

33pF

C2

0.1μF

5

FB2N

R2

7 SHDN/SS2

4

FB2P

15k

GND

SW2

11

L2

10μH

VIN

6 3471 F02

C5

1μF

L3

15μH

R1

105k

D2

R3

90.9k

R4

15k

C6

75pF

C4

10μF

VOUT1

7V

C3

4.7μF

VOUT2

–7V

C1, C2: X5R OR X7R 6.3V

C3, C4: X5R OR X7R 10V

C5: XR5 OR X7R 16V

CPL: OPTIONAL

D1, D2: ON SEMICONDUCTOR MBRM-120

L1: SUMIDA CR43-2R2

L2: SUMIDA CDRH4D18-100

L3: SUMIDA CDRH4D18-150

Supply Current of Figure 2 During

Start-Up without Soft-Start RC Network

Supply Current of Figure 2 During

Start-Up with Soft-Start RC Network

ISUPPLY

0.5A/DIV

VOUT1

2V/DIV

VIN = 3.3V

ISUPPLY

0.5A/DIV

VIN > VSHDN/SS

0.1ms/DIV

3471 F02b

VOUT1

2V/DIV

Figure 2. Li-Ion OLED Driver

VIN = 3.3V

VIN > VSHDN/SS

0.2ms/DIV

3471 F02c

3471fb

8

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