Rainbow-electronics MAX1524 Instrukcja Użytkownika Pobierz pdf (Strona 13)

MAX1522/MAX1523/MAX1524

Simple SOT23 Boost Controllers

______________________________________________________________________________________ 13

PARAMETER EXAMPLE 4 EXAMPLE 5

2.7V to 4.2V 1.8V to 3.0V

OUT

24V 3.3V

OUT(MAX)

30mA 100mA

R1, R2 909kΩ, 49.9kΩ 150kΩ, 93.1kΩ

Duty Cycle (max) 89.0% 52.6%

3µs

(SET = V

)

0.5µs

(SET = GND)

IDEAL

11.9µH 1.14µH

ACTUAL

Sumida

CDRH5D28-100

10µH, 65mΩ,

1.3A

Sumida

CDRH4D18-1R0

1µH, 45mΩ,

1.72A

PEAK

1.51A 1.80A

4.5mW at

OUT

= 10mA

5.7mW

OUT

= 50mA

SWITCHING

208kHz when

OUT

= 20mA

737kHz when

OUT

= 100mA

OUT(MIN)

OUT(MAX)

0.8µF to 2.7µF 3µF to 97µF

OUT(ACTUAL)

Taiyo Yuden

GMK325BJ225K

2.2µF, X5R, 35V,

1210

Taiyo Yuden

TMK316BT106ML

10µF, X7R, 6.3V,

1206

ESR

COUT(ACTUAL)

10mΩ 10mΩ

RIP P LE ( C OU T+ E S R )

126mVp-p 40mVp-p

100pF 220pF

220pF 100pF optional

10µF, 6.3V 10µF, 6.3V

MOSFET

Fairchild

FDC633N

Vishay Si2302DS

8nC at Vgs = 3V

5nC at Vgs = 3.3V

GATE

1.7mA

nonbootstrapped

3.7mA

bootstrapped

DIODE(RMS)

0.17A 0.42A

Diode

Nihon

EP10QY03, 1A

Nihon

EP10QY03, 1A

Table 2. Design Examples Using DCM

MANUFACTURER

PHONE WEB

Coilcraft

847-639-6400

www.coilcraft.com

Fairchild

800-341-0392

www.fairchildsemi.com

International

Rectifier

310-322-3331

www.irf.com

Kemet

408-986-0424

www.kemet.com

NIC Components

408-954-8470

www.niccomp.com

Panasonic

847-468-5624

www.panasonic.com

Sumida

847-956-0666

www.sumida.com

Taiyo Yuden

408-573-4150

www.t-yuden.com

Table 3. Component Manufacturers

Chip Information

TRANSISTOR COUNT: 1302

1 2 ... 8 9 10 11 12 13 14

MAX1522/MAX1523/MAX1524 1

Komentarze do niniejszej Instrukcji

Brak uwag

Rainbow-electronics MAX1524 Instrukcja Użytkownika Strona 13

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Czujniki Rainbow-electronics MAX1524