TK11840LTL-G Ver la hoja de datos (PDF) - Toko America Inc

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TK11840LTL-G

Step-up DC-DC converter / white LED driver IC

Toko America Inc  

POWER&RF

VOUT=32V STEP-UP DC-DC CONVERTER FOR LDC/VCD BIAS APPLICATION

„ Designed Performance

„ List of common components

Input Voltage

Output Current

Output Voltage

Oscillation Frequency

VIN=4.5 to 5.5V

IOUT=up to 10mA

VOUT=32V

110kHz

Inductor Peak Current 250mA

Coil (TOKO)

Type D52LC A914BYW-101M

Parameter

Symbol Value Unit

Coil

L 100

µH

Input Capacitor

CIN

4.7

µF

Output Capacitor

COUT

10

µF

Short Circuit Protection Resistor

CSCP 0.1

µF

Bias Resistor

RB

2

kΩ

Time Capacitor

CT 1000

pF

Time Resistor

RT

4.7

kΩ

Feedback Capacitor

CFB 0.1

µF

VOUT

TK11840L

1 Ealn

FB 8

CFB

CSCP

2 SCP

OSC 7

VIN

3 VCC

GND 6

CT RT

RB

4 BR/CTL

VOUT 5

Sw.Tr.

R2

CR2

360kΩ 1000pF

R1

5.6kΩ

L

D

CIN

COUT

VOUT=5V STEP-UP DC-DC CONVERTER FOR SPEAKER DRIVER APPLICATION

„ Designed Performance

„ List of common components

Input Voltage

Output Current

Output Voltage

Oscillation Frequency

Inductor Peak Current

Coil (TOKO)

VIN=3.0 to 4.0V

IOUT=up to 300mA

VOUT=5.0V

740kHz

800mA

Type D412F 972AS-4R7M

Parameter

Symbol Value Unit

Coil

L 4.7

µH

Input Capacitor

CIN

4.7

µF

Output Capacitor

COUT

22

µF

Short Circuit Protection Resistor

CSCP 0.1

µF

Bias Resistor

RB

1

kΩ

Time Capacitor

CT 270

pF

Time Resistor

RT

2.2

kΩ

Feedback Capacitor

CFB 0.1

µF

VOUT

TK11840L

1 Ealn

FB 8 RFB CFB

CSCP

2 SCP

OSC 7 2.2kΩ

VIN

3 VCC

GND 6

CT RT

RB

4 BR/CTL

VOUT 5

Sw.Tr.

R2

CR2

68kΩ 10pF

R1

7.5kΩ

L

D

CIN

COUT

* Please inquire us about applications except above.

上記以外のアプリケーションについてはお問い合わせ下さい。

2005 SPRING

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