IL3843D Ver la hoja de datos (PDF) - IK Semicon Co., Ltd

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IL3843D

Fixed Frequency Current Mode PWM Controller

IK Semicon Co., Ltd 

IL3843

EL ECTRI CAL CHARACTERI STI CS (Vcc= 15V unless otherwise noted)

Characteristics

OUTPUT SECTION

Output Voltage

Low State (Sink=20mA, VCC=15V)

(Sink=200mA, VCC=15V)

High State (Sink=-20mA, VCC=15V)

(Sink=-200mA, VCC=15V)

Output Voltage with UVLO Activated

(VCC=6.0V, ISink,=1.0mA, TA=Tlow to Thigh)

Output Voltage Rise Time

(CL=1.0nF, VCC=15V, TA=Tlow to Thigh)

Output Voltage Fall Time

(CL=1.0nF, VCC=15V, TA=Tlow to Thigh)

ONDERVOLTAGE LOCKOUT SECTION

Startup Threshold (VCC=0V to 15V,TA=Tlow to Thigh)

Minimum Operating Voltage After Turn-On

(VCC=15V to 0V,TA=Tlow to Thigh)

PWM SECTION

Duty Cycle

Maximum (VCC=15V, TA=Tlow to Thigh,RT=10k,CT=3.3nF)

Minimum (VCC=15V, TA=Tlow to Thigh,RT=10k,CT=3.3nF)

TOTAL DEVICE

Power Supply Current

Startup: VCC=6.5V

VCC=15V Operating

Power Supply Zener Voltage (ICC=25mA, VCC=0 to 40V)

Symbol Min

VOL

VOH

13

12

VOL(UVL

O)

tr

tf

Vth

7.8

VCC(min)

7.0

DCmax 94

DCmin

ICC

Vz

30

NOTES: 1. Vfinal= Vref25 ±( Regline+ Regload)/1000± | Vref70(Vref0)-Vref25 |

Vref25=Vref @ TA=25°C;

Vref70=Vref @ TA=70°C;

Vref0 =Vref @ TA=0°C.

2. Tlow= 0°C ; Thigh=+70°C

Max Unit

0.4

2.2

V

1.1

V

150

ns

150

ns

9.0

V

8.2

V

0

%

1.0

17

mA

40

V

2011, February, Rev. 03

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