VIPER53-E 데이터 시트보기 (PDF) - STMicroelectronics

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VIPER53-E

OFF-line primary switch

STMicroelectronics 

VIPer53 - E

Electrical characteristics

Table 5. Supply section

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VDSstart

Drain voltage starting

threshold

VDD = 5V; IDD = 0mA

34 50 V

IDDch1

Startup charging current

VDD = 0 ... 5V; VDS = 100V

Figure 5 on page 10

-12

mA

IDDch2 Startup charging current VDD = 10V; VDS = 100VFigure 5.

-2

mA

IDDchoff

Startup charging current

in thermal shutdown

VDD = 5V; VDS = 100VFigure 7.

TJ > TSD - THYST

0

mA

IDD0

Operating supply current

not switching

Fsw = 0kHz; VCOMP = 0V

8 11 mA

IDD1

Operating supply current

switching

Fsw = 100kHz

9

mA

VDDoff

VDD undervoltage

shutdown threshold

Figure 5 on page 10

7.5 8.4 9.3 V

VDDon VDD startup threshold

Figure 5.

10.2 11.5 12.8 V

VDDhyst VDD threshold hysteresis Figure 5.

2.6 3.1

V

VDDovp

VDD Overvoltage

shutdown threshold

Figure 5.

17 18 19 V

Table 6. Error amplifier section

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VDDreg VDD regulation point

∆VDDreg

VDD regulation point

total variation

GBW Unity gain bandwidth

AVOL Voltage gain

Gm DC transconductance

VCOMPlo Output low level

VCOMPhi Output high level

ICOMPlo Output sinking current

ICOMPhi Output sourcing current

ICOMP = 0mA

Figure 11. on page 11

ICOMP = 0mA; TJ = 0 ... 100°C

From Input = VDD to Output =

VCOMP

ICOMP = 0mA Figure 14 and 15

ICOMP = 0mA Figure 14 and 15

VCOMP = 2.5V Figure 11.

ICOMP = -0.4mA; VDD = 16V

ICOMP = 0.4mA; VDD=14V(1)

VCOMP = 2.5V; VDD = 16V

Figure 11. on page 11

VCOMP = 2.5V; VDD= 14V

Figure 11.

14.5 15 15.5 V

2

%

700

kHz

40 45

dB

1 1.4 1.8 mS

0.2

V

4.5

V

-0.6

mA

0.6

mA

1. In order to insure a correct stability of the error amplifier, a capacitor of 10nF (minimum value: 8nF) should

always be present on the COMP pin.

5/36

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