6446

Pulse Voltage V+ to V (50ms)
                                                             50V
Continuous Voltage from V+ to V
                                                             40V
Input-Output Voltage Differential
                                                             40V
Maximum Amplifier Input Voltage
(Either Input)                                        8.5V
(Differential)                                          5V
Current from Vz
                                                             25mA
Current from Vref
                                                             15mA
Internal Power Dissipation
(Note 2)
Metal Can                                              800mW
Cavity DIP                                              900mW
LCC                                                        TBD
Operating Temperature Range
                                                              -55 C to +125 C
Maximum Junction Temperature
                                                              150 C
Storage Temperature Range
                                                              -65 C to +150 C
Lead Temperature
(Soldering, 4 seconds max.)                  300 C
Thermal Resistance
ThetaJA
CERDIP (Still Air)                                    TBD
(500LF/Min Air flow)                               TBD
METAL CAN (Still Air)                               TBD
(500LF/Min Air flow)                               TBD
LCC (Still Air)                                          96 C/W
(500LF/Min Air flow)                               70 C/W
ThetaJC
CERDIP                                                  TBD
METAL CAN                                            TBD
LCC                                                       27 C/W
ESD Tolerance
(Note 3)
                                                             500V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax - TA)/ThetaJA or the number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: Human body model, 1.5K Ohm in series with 100pF.

The 6446 is a voltage regulator designed primarily for series regulator applications. By itself, 6446 will supply output currents up to 150mA, but external transistors can be added to provide any desired load current. The circuit features extremely low standby current drain, and provision is made for either linear or foldback current limiting.

The 6446 is also useful in a wide range of other applications such as a shunt regulator,a current regulator or a temperature controller.