SC2441AEVB Просмотр технического описания (PDF) - Semtech Corporation

Номер в каталоге

Компоненты Описание

производитель

SC2441AEVB

1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter

Semtech Corporation 

POWER MANAGEMENT

Typical Characteristics

Current Sense Amplifier Input Bias Current vs

Temperature (Inverting Pin)

-25

-30

-35

VCC = 8V, VCS1 (-) = VCS2 (-) = 0V

-40

-50 -25

0 25 50 75 100 125

Temperature (°C)

Overload Hiccup Threshold vs Temperature

0.400

0.395

0.390

0.385

0.380

0.375

0.370

0.365

0.360

0.355

0.350

-50

VSS1,2 = 3.5V

-25 0 25 50 75

Temperature (°C)

100 125

SC2441A

Soft-Start Voltage Threshold (to Enable Overload

Hiccup Protection) vs Temperature

4.0

3.8

3.6

3.4

3.2

3.0

-50 -25

0 25 50 75 100 125

Temperature (°C)

Soft-Start Discharge Current vs Temperature

9.0

8.5

8.0

7.5

VFB1=VFB2=0.3V, VSS1=VSS2=3V

7.0

-50 -25 0 25 50 75

Temperature (°C)

100 125

Soft-Start Voltage (to Restart Overload Shutdown)

vs Temperature

0.60

0.58

0.56

0.54

0.52

0.50

-50 -25

0 25 50 75 100 125

Temperature (°C)

Soft-Start Disable Voltage vs Temperature

0.83

0.81

0.79

0.77

VFB1=VFB2=0.45V, VCOMP1=VCOMP2=2V

0.75

-50 -25 0 25 50 75 100 125

Temperature (°C)

Soft-Start Threshold Voltage (to Eable PWM

Operation) vs Temperature

1.30

1.28

1.26

1.24

1.22

1.20

-50 -25

VFB1=VFB2=0.03V

0 25 50 75 100 125

Temperature (°C)

 2006 Semtech Corp.

VIN Start-up Threshold Voltage vs Temperature

1.75

1.74

1.73

1.72

1.71

1.70

-50 -25

0 25 50 75 100 125

Temperature (°C)

14

VIN Hysteresis Voltage vs Temperature

0.110

0.105

0.100

0.095

0.090

0.085

0.080

0.075

-50 -25

0 25 50 75 100 125

Temperature (°C)

www.semtech.com

Share Link: