SIP2800 datasheet(3/8 Pages) VISHAY

3 / 8 page

SiP2800/01/02/03/04/05

Vishay Siliconix

New Product

Document Number: 72660

S-41623—Rev.C, 30-Aug-04

www.vishay.com

SPECIFICATIONS

Limits

Test Conditions Unless Specified

VCC =10 V, RT = 100 kΩ,CT = 330 pF

CREF =0.1 mF, --40 _C<TA <85 _C

Parameter

Unit

Maxa

Typb

Mina

Test Conditions Unless Specified

VCC =10 V, RT = 100 kΩ,CT = 330 pF

CREF =0.1 mF, --40 _C<TA <85 _C

Symbol

PWM and Overcurrent Comparator

COMP to CS Offset

CS = 0 V

0.45

0.90

1.35

CS Pin Blanking Time

100

150

Overcurrent Comparator Fault

Threshold

1.47

1.73

Output

I=20 mA

All Parts

0.1

0.40

VOL

I = 200 mA

All Parts

0.35

0.90

VOL

I=50 mA,VCC =5 V

SiP2803/5

0.15

0.40

Output Voltage

I=20 mA,VCC =0 V

All Parts

0.70

1.20

I= --20 mA

All Parts

0.15

0.40

VCC -- VOH

I = --200 mA

All Parts

1.00

1.90

I= --50 mA,VCC =5 V

SiP2803/5

0.40

0.90

Rise Time

CL= 1 nF

Fall Time

CL= 1 nF

Undervoltage Lockout

SiP2800

6.6

7.2

7.8

Start Thresholdd

VSTART

SiP2801

8.6

9.4

10.2

Start Thresholdd

VSTART

SiP2802/4

11.5

12.5

13.5

SiP2803/5

3.7

4.1

4.5

SiP2800

6.3

6.9

7.5

Stop Thresholdd

VSTOP

SiP2801

6.8

7.4

8.0

Stop Thresholdd

VSTOP

SiP2802/4

7.6

8.3

9.0

SiP2803/5

3.2

3.6

4.0

SiP2800

0.05

0.30

0.48

Start to Stop Hysteresis

VHYS

SiP2801

1.5

2.0

2.4

Start to Stop Hysteresis

VHYS

SiP2802/4

3.0

4.2

5.1

SiP2803/5

0.2

0.5

0.8

Soft-Start

COMP Rise Time

τSS

FB = 1.8 V, Rise from 0.5 V to VREF --1 V

Overall

Start-up Current

ISTART

Vcc < Start Threshold

0.1

0.2

Operating Supply Current

ICC

FB =0 V, CS =0 V

0.5

1.0

Vcc Internal Zener Voltaged

ICC =10 mA

12.0

13.5

15.0

Vcc Internal Zener Voltage Minus

Start Threshold Voltaged

VZ--VSTART

SiP2802/04

0.5

1.0

Notes

The algebraic convention whereby the most negative value is a minimum and the most positive a maximum (--40_ to 85_C).

Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing and are measured at VCC = 12 V unless otherwise noted.

Gain is defined by A = ∆VCOMP/∆VCS , 0V

≤ VCS ≤ 0.8 V.

Start, Stop, and Zener voltages track each other.

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