VIPER50A-E datasheet(5/31 Pages) STMICROELECTRONICS

Part #	VIPER50A-E

Description	SMPS PRIMARY I.C.

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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5 / 31 page

VIPer50A-E/ASP-E

1 Electrical Data

5/31

1.2

Electrical Characteristics

TJ = 25°C; VDD = 13V, unless otherwise specified

Table 2.

Power Section

(1) On Inductive Load, Clamped.

Table 3.

Supply Section

Table 4.

Oscillator Section

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

BVDS

Drain-Source Voltage

ID = 1mA; VCOMP = 0V

700

V

IDSS

Off-State Drain

Current

VCOMP = 0V; Tj = 125°C

VDS = 700V

1mA

RDS(on)

Static Drain-Source

On Resistance

ID = 2A

ID = 2A; Tj = 100°C

4.6

5.7

10.3

Ω

tf

Fall Time

ID = 0.2A; VIN =300V

(1)Figure 7

100

ns

tr

Rise Time

ID = 1A; VIN = 300V

(1)Figure 7

50

ns

Coss

Output Capacitance

VDS = 25V

120

pF

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

IDDch

Start-Up Charging Current

VDD = 5V; VDS = 35V

(see Figure 6)(see Figure 11)

-2

mA

IDD0

Operating Supply Current

VDD = 12V; FSW = 0kHz

(see Figure 6)

12

16

mA

IDD1

Operating Supply Current

VDD = 12V; Fsw = 100kHz

14

mA

VDD = 12V; Fsw = 200kHz

16

mA

VDDoff

Undervoltage Shutdown

(see Figure 6)

7.5

8

9

V

VDDon

Undervoltage Reset

(see Figure 6)

11

12

V

VDDhyst

Hysteresis Start-up

(see Figure 6)

2.4

3

V

Symbol

Parameter

Test Conditions‘

Min

Typ

Max

Unit

FSW

Oscillator Frequency Total

Variation

RT=8.2KΩ; CT=2.4nF

VDD=9 to 15V;

with RT± 1%; CT± 5%

(see Figure 10)(see Figure 14)

90

100

110

KHz

VOSCIH

Oscillator Peak Voltage

7.1

V

VOSCIL

Oscillator Valley Voltage

3.7

V

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