ABSOLUTE MAXIMUM RATINGS

-0.3V

to

+10V

DRIVE

-0.3V

to

EOR

-0.3V

to

* (ZXSC420 only)

STDN

-0.3V

to

* (ZXSC410 only)

-0.3V

to

Operating Temp.

-40°C to

+85°C

Storage Temp.

-55°C to

+125°C

Power Dissipation

450mW

ZXSC410

ZXSC420

SEMICO NDUC TORS

ISSUE 2 - May 2003

2

Symbol

Parameter

Conditions

Limits

Units

Min

Typ

Max

Supply parameters

1.8

8

V

Iq

1

Quiescent Current

220

A

Shutdown Current

4.5

A

Eff

2

Efficiency

85

%

Reference tolerance

-3.0

3.0

%

Reference Temp Co

0.005

%/ C

Discharge pulse width

1.7

s

Operating Frequency

200

kHz

Input parameters

sense voltage

22

28

34

mV

sense input current

-1

-7

-15

A

Feedback voltage

291

300

309

mV

2

Feedback input current

-1.2

-4.5

A

Shutdown high voltage

1.5

1

V

Shutdown low voltage

0

0.55

V

Line voltage regulation

0.5

%/V

Output parameters

3

Output current

300

mA

Transistor drive current

2

3.4

5

mA

Transistor voltage drive

0

V

Mosfet gate drive cpbty

300

pF

EOR Flag output high

2.5

V

EOR Flag output low

0

1.15

V

EOR delay time

70

195

250

s

Load current regulation

0.01

%mA

ELECTRICAL CHARACTERISTICS

°C to 85°C unless otherwise stated.

Note

1

Excluding gate/base drive current.

2

3

System not device spec, including recommended transistors.