3

Electrical Characteristics: continued

CS2842A/CS2843A

CS3842A/CS3843A

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX UNITS

CS2842A

CS3842A

CS2843A/CS3843A

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX MIN

TYP

MAX UNITS

Notes:

3. Parameter measured at trip point of latch with VFB=0.

2.These parameters, although guaranteed, are not 100% tested in production.

4. Gain defined as:

A =

; 0 ≤ VSense ≤ 0.8V.

s

Under-Voltage Lockout Section

Start Threshold

15

16

17

14.5

16.0 17.5

7.8

8.4

9.0

V

Min. Operating

After Turn On

9

10

11

8.5

10.0 11.5

7.0

7.6

8.2

V

Voltage

s

Output Section: continued

Rise Time

50

150

50

150

ns

Fall Time

50

150

50

150

ns

Output Leakage

-0.01

-10.00

-0.01 -10.00 µA

s

Total Standby Current

Start-Up Current

0.5

1.0

0.5

1.0

mA

Operating Supply Current

17

11

17

mA

34

34

V

Package Pin Description

PACKAGE PIN #

PIN SYMBOL

FUNCTION

8L PDIP/SO

14L SO Narrow

1

1

COMP

Error amp output, used to compensate error amplifier

23

Error amp inverting input

3

5

Sense

Noninverting input to Current Sense Comparator

4

7

OSC

Oscillator timing network with Capacitor to Ground, resistor

5

8

Gnd

Ground

9

Pwr Gnd

Output driver Ground

610

Output drive pin

11

Output driver positive supply

712

Positive power supply

814

Output of 5V internal reference

2,4,6,13

NC

No Connection