CS3842B datasheet(3/8 Pages) ONSEMI

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Electrical Characteristics: continued

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

CS-3842B

CS-3843B

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX UNITS

Notes:

1. Adjust VCC above the start threshold before setting at 15V.

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

in production.

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

4. Gain defined as:

A =

; 0

≤ V

Sense ≤ 0.8V.

∆V

COMP

∆V

Sense

Package Pin Description

PACKAGE PIN #

PIN SYMBOL

FUNCTION

8L PDIP/SO

14L SO Narrow

COMP

Error amp output, used to compensate error amplifier

VFB

Error amp inverting input

Sense

Noninverting input to Current Sense Comparator

OSC

Oscillator Timing Network with Capacitor to Ground, resistor

to VREF

Gnd

Ground

Pwr Gnd

Output driver Ground

610

VOUT

Output drive pin

VCCPwr

Output driver positive supply

712

VCC

Positive power supply

814

VREF

Output of 5V internal reference

2,4,6,13

No Connection

s Output Section: continued

Rise Time

TJ=25°C, CL=1nF (Note 2)

150

Fall Time

TJ=25°C, CL=1nF (Note 2)

150

Output Leakage

UVLO Active, VOUT=0

-0.01

-10.00

µA

s Total Standby Current

Start-Up Current

0.3

0.5

Operating Supply Current

VFB=VSense=0V RT=10kΩ, CT=3.3nF

VCC Zener Voltage

ICC=25mA

s Under-Voltage Lockout Section

Start Threshold

14.5

16.0

17.5

7.8

8.4

9.0

Min. Operating

After Turn On

8.5

10.0

11.5

7.0

7.6

8.2

Voltage

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