LD7577JAGN Ver la hoja de datos (PDF) - Unspecified

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componentes Descripción

Fabricante

LD7577JAGN

High Voltage Green-Mode PWM Controller with Brown-Out Protection

Unspecified 

Electrical Characteristics

(TA = +25°C unless otherwise stated, VCC=15.0V)

PARAMETER

CONDITIONS

High-Voltage Supply (HV Pin)

High-Voltage Current Source

Off-State Leakage Current

Supply Voltage (Vcc Pin)

VCC< UVLO(on), HV=500V

VCC> UVLO(off), HV=500V

Startup Current

Operating Current

(with 1nF load on OUT pin)

VCOMP=0V,Fsw=65KHz

VCOMP=3V,Fsw=65KHz

OLP Tripped

OVP Tripped

UVLO (off)

UVLO (on)

OVP Level

Voltage Feedback (Comp Pin)

Short Circuit Current

VCOMP=0V

Open Loop Voltage

COMP pin open

Green Mode Threshold VCOMP

Burst Mode Threshold VCOMP

Current Sensing (CS Pin)

Maximum Input Voltage(Vcs_off)

Leading Edge Blanking Time

COMP >1.9V

COMP <1.9V

Input impedance

Delay to Output

Oscillator for Switching Frequency

Frequency

FSW=65KHz

Trembling Frequency

Green Mode Frequency

Modulation Frequency

FSW=65KHz

FSW=65KHz

Temp. Stability

Voltage Stability

VCC=11V-25V

LD7577JA

MIN

TYP

MAX UNITS

0.5

1.0

1.5

mA

35

μA

320

μA

3.3

mA

3.6

mA

0.78

mA

0.88

mA

9.0

10.0

11.0

V

15.0

16.0

17.0

V

26.5

28.0

29.5

V

1.5

2.2

mA

5.8

V

2.35

V

1.4

V

0.80

0.85

0.90

V

320

nS

750

nS

1

MΩ

100

nS

60

65

70

KHz

±4

KHz

22

KHz

86

Hz

5

%

1

%

Leadtrend Technology Corporation

LD7577JA-DS-00b August 2010

5

www.leadtrend.com.tw

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