3S1265R Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

3S1265R

Fairchild Power Switch(FPS)

Fairchild Semiconductor 

KA3S1265R/KA3S1265RF/KA3S1265RD

Electrical Charcteristics (CONTROL part)

(Ta = 25°C unless otherwise specified)

Characteristic

Symbol

Test condition

Min. Typ. Max. Unit

UVLO SECTION

Start threshold voltage

Stop threshold voltage

OSCILLATOR SECTION

Initial accuracy

Frequency change with temperature(2)

Maximum duty cycle

FEEDBACK SECTION

Feedback source current

Shutdown feedback voltage

Shutdown delay current

SYNC. & SOFT START SECTION

VSTART

VSTOP

-

After turn on

14 15 16 V

9 10 11 V

FOSC

∆F/∆T

Dmax

Ta=25°C

−25°C ≤ Ta ≤ +85°C

-

18 20 22 kHz

- ±5 ±10 %

92 95 98 %

IFB

VSD

Idelay

Ta=25°C, Vfb=GND

0.8 1 1.2 mA

-

6.9 7.5 8.1 V

Ta=25°C, 5V ≤ Vfb ≤ VSD 1.4 1.8 2.2 µA

Soft start voltage

VSS

VFB=2V

4.7

Soft start current

Sync threshold voltage

Sync threshold voltage(ON)(3)

Sync threshold voltage(OFF)(3)

ISS

VSYTH

VSYTH(ON)

VSYTH(OFF)

Sync & S/S=GND

KA3S1265R,KA3S1265RF

KA3S1265RD

0.8

6.0

6.86

5.92

REFERENCE SECTION

Output voltage (1)

Temperature stability (1)(2)

Vref

Ta=25°C

4.80

Vref/∆T −25°C ≤ Ta ≤ +85°C

-

CURRENT LIMIT (SELF-PROTECTION) SECTION

Peak Current Limit

IOVER Max. inductor current

7.04

PROTECTION SECTION

Thermal shutdown temperature (Tj) (1)

TSD

-

140

TOTAL DEVICE SECTION

Start Up current

ISTART VCC=14V

0.1

Operating supply current

(Control Part Only)

IOP

Ta=25°C

6

Vcc Zener voltage

VZ

ICC=20mA

30

5.0

-

6.4

7.23

6.23

5.00

0.3

8.00

160

0.3

12

32.5

5.4 V

- mA

6.8

7.60 V

6.54

5.20 V

0.6 mV/°C

8.96 A

-

°C

0.55 mA

18 mA

35 V

Note:

1. These parameters, although guaranteed, are not 100% tested in production

2. These parameters, although guaranteed, are tested in EDS(water test) process

3.The amplitude of the sync. pulse is recommended to be between 2V and 3V for stable sync. function.

4

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