CM431 datasheet(3/12 Pages) ETC

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CM431

LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR

2003/03/24

Preliminary Rev.1.1

Champion Microelectronic Corporation

Page 3

ABSOLUTE MAXIMUM RATINGS

Cathode to Anode Voltage (VKA) (Note 2)

-0.3V to 37V

Continuous Cathode Current (IK)

-100mA to 150mA

Reference Input Current (IREF)

-50uA to 10mA

Maximum junction temperature range, TJ

150

Storage temperature range

-65

OC to 150OC

Lead temperature (soldiering, 10 seconds)

260

Note 1:

Exceeding these ratings could cause damage to the device.

All voltages are with respect to Ground.

Currents are positive into, negative out of the specified terminal.

Note 2:

Voltage values are with respect to the anode terminal unless otherwise noted.

POWER DISSIPATION TABLE

Package

(

OC/W )

Derating factor ( mW/

OC )

TA≧25

TA≦25

Power rating(mW)

TA=70

Power rating(mW)

TA= 85

Power rating (mW)

SOP-8

165

6.06

757

485

394

TO-92

156

6.41

801

513

417

SOT-89

71(note)

14.1

1763

1128

916

SOT-23

285

3.5

438

280

228

Note :

For SOT-89 package, Thermal Resistance-Junction to Tab (

θJT ) = 35 OC/W. T

J = T

TAB + (PD x

θJT)

: Thermal Resistance-Junction to Ambient

Junction Temperature Calculation:

TJ = TA + (PD x

JA).

The

JA numbers are guidelines for the thermal performance of the device/PC-board system.

All of the above assume no ambient airflow.

RECOMMENDED OPERATING CONDITIONS

Min

Max

Units

Operating free air temperature range, TA

105

Cathode current, IK

100

Cathode voltage, VKA

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