Electrical Characteristics (Note 3) (Continued)

Specifications in standard type face are for T

perature range. Unless otherwise specified: V

Ω.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Thermal Shutdown

Tsd

Thermal Shutdown Temp.

165

˚C

Thermal

Shutdown

Hysteresis

25

˚C

Thermal Resistance

θ

JA

Junction to Ambient

MTC Package

125

˚C/W

SDA Package

32

˚C/W

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device

is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.

Note 2: For detailed information on soldering plastic TSSOP and LLP package, refer to the Packaging Databook available from National Semiconductor.

Note 3: Min and Max limits are 100% production tested at 25 ˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical

Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).

Note 4: Device thermal limitations may limit usable range.

Note 5: Specification applies to the oscillator frequency. The operational frequency of the LM5070-50 devices is divided by two.

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