Steady,

Steady,

Steady,

Steady, keep

keep

keep

keep you

you

you

you advance

advance

advance

advance

3/9

WS

WS

WS

WS3

3

3

32

2

2

215

15

15

15

Ordering

Ordering

Ordering

Ordering Information

Information

Information

Information

Package

Package

Package

Package

IC

IC

IC

IC Marking

Marking

Marking

Marking Information

Information

Information

Information

Purchasing

Purchasing

Purchasing

Purchasing Device

Device

Device

Device Name

Name

Name

Name

SOT89-5 Pb-free

WS3215 TP

WS3215

Recommended

Recommended

Recommended

Recommended Operating

Operating

Operating

Operating Condition

Condition

Condition

Condition

S

S

S

Symbol

ymbol

ymbol

ymbol

P

P

P

Parameter

arameter

arameter

arameter

V

V

V

Value

alue

alue

alue

U

U

U

Unit

nit

nit

nit

Input voltage

8~40

V

Operating temperature

-20~85

℃

Absolute

Absolute

Absolute

Absolute Maximum

Maximum

Maximum

Maximum Ratings

Ratings

Ratings

Ratings (((( Note

Note

Note

Note 1)

1)

1)

1)

S

S

S

Symbol

ymbol

ymbol

ymbol

P

P

P

Parameter

arameter

arameter

arameter

Value

Value

Value

Value

Unit

Unit

Unit

Unit

DC Supply Voltage

-0.3~50

V

SW

Drain voltage of internal Power MOSFET

-0.3~50

V

CSN

Output current sensing voltage(relative

0.3~-6.0

V

DIM

Switch enable and Dimming Voltage

-0.3~6.0

V

Isw

Maximum Output Current

1.8

A

Power Dissipation(Note 2)

1.5

W

Thermal Resistance,SOT89-5(θJA)

45

℃/W

Junction Operating Temperature

-40 to 150

℃

Storage Temperature

-55 to 150

℃

Note1：Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which

the device is intended to be functional, but device parameter specifications may not be guaranteed. For guaranteed

specifications and test conditions, see the Electrical Characteristics.

Note 2：Higher temperature leads to the necessary decreasing of maximum power dissipation. It also decided by both TJMAX, θJA,and

ambient temperature TA. The maximum accepted power is formulated as PDMAX = (TJMAX -TA)/ θJA

or the value among

the lower ones in the absolute maximum rating.

ESD

ESD

ESD

ESD Information

Information

Information

Information

S

S

S

Symbol

ymbol

ymbol

ymbol

P

P

P

Parameter

arameter

arameter

arameter

V

V

V

Value

alue

alue

alue

U

U

U

Unit

nit

nit

nit

Human body model on all pins(Discharge with a 100pF

capacitor through a 1.5kΩ resistance.)

4

KV

Machine model on all pins

400

V