DH321 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

DH321

Green Mode Fairchild Power Switch (FPS™)

Fairchild Semiconductor 

FSDH321, FSDL321

Electrical Characteristics (Control Part) (Continued)

(Ta=25°C unless otherwise specified)

Parameter

Symbol

Condition

UVLO SECTION

Start Threshold Voltage

VSTART VFB=GND

Stop Threshold Voltage

VSTOP VFB=GND

OSCILLATOR SECTION

Initial Accuracy

Frequency Modulation

FOSC

FMOD

FSDH321

Initial Accuracy

Frequency Modulation

Frequency Change With Temperature (2)

FOSC

FMOD

∆F/∆T

FSDL321

-25°C ≤ Ta ≤ +85°C

Maximum Duty Cycle

Dmax

FSDH321

FSDL321

FEEDBACK SECTION

Feedback Source Current

IFB

Ta=25°C, Vfb = 0V

Shutdown Feedback Voltage

VSD

Shutdown Delay Current

IDELAY Ta=25°C, Vfb = 4V

BURST MODE SECTION

VBURH

Burst Mode Voltage

VBURL Tj = 25°C

Hysteresis

CURRENT LIMIT(SELF-PROTECTION)SECTION

Peak Current Limit(3)

ILIM

Current Limit Delay(1)

TCLD

Tj = 25°C

Tj = 25°C

SOFT START SECTION

Soft Start Time

TSS Vfb = 4V

PROTECTION SECTION

Thermal Shutdown Temperature (1)

TSD

-

Over Voltage Protection

VOVP

TOTAL STANDBY CURRENT SECTION

Startup Charging Current

ICH

VCC=0V

Operating Supply Current

(Control Part Only)

IOP

VCC = 14V, Vfb = 0V

Note:

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

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

3. di/dt = 250mA/uS

Min. Typ. Max. Unit

11 12 13

V

7

8

9

V

90 100 110

kHz

±2.5 ±3 ±3.5

45 50 55

kHz

±1.0 ±1.5 ±2.0

-

±5 ±10 %

62 67 72

%

71 77 83

%

0.70 0.90 1.1 mA

5.5 6.0 6.5

V

3.5 5.0 6.5 µA

0.4 0.5 0.6

V

0.25 0.35 0.45 V

- 150 -

mV

0.60 0.70 0.80 A

- 600 -

ns

10 15 20 ms

125 145 -

°C

18 19 20

V

0.7 0.85 1.0 mA

1

3

5

mA

6

Share Link: