MIL-M-38510-702 Microcircuits, Linear, Regulating Pulse Width Modulators, Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, regulating, pulse width modulator microcircuits. Two product assurance classes and a choice of case outlines and lead finishes are provided and are reflected in the complete part number. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.3

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MIL-M-38510/702A

6.5  Abbreviations, symbols, and definitions.  The abbreviations, symbols, and definitions used herein are defined in

MIL-PRF-38535, MIL-STD-1331, and as follows:

LRESET                                Cold start/PWM latch.

VTVO                                    Total variation of output voltage.

VSOL and VSOH                 Sync output voltage (high and low levels) of the oscillator section. VSIL and VSIH                    Sync input voltage (high and low levels) of the oscillator section. ISYNC                                   Sync input current.

ISINK                                     Output sync current (compensation pin) of the error amplifier. ISOURCE                              Output source current (compensation pin) of the error amplifier.

VDIFF                                    Maximum differential input signal (negative and positive current)

sense pin voltages.

VCLO                                    Current limit offset voltage.

VTH                                       Threshold voltage of the shutdown section. VLATCH                                Latching voltage of the shutdown terminal. VNLATCH                             Nonlatching voltage of the shutdown terminal. VSU                                       Start-up threshold voltage.

VSD                                       Shutdown threshold voltage.

6.6  Logistic support.  Lead materials and finishes (see 3.3) are interchangeable.  Unless otherwise specified, microcircuits acquired for Government logistic support will be acquired to device class B (see 1.2.2), lead material and finish A (see 3.4). Longer length leads and lead forming should not affect the part number.

6.7  Substitutability.  The cross-reference information below is presented for the convenience of users.  Microcircuits covered by this specification will functionally replace the listed generic-industry type.  Generic-industry microcircuit types may not have equivalent operational performance characteristics across military temperature ranges or reliability factors equivalent to MIL-M-

38510 device types and may have slight physical variations in relation to case size.  The presence of this information should not be deemed as permitting substitution of generic-industry types for MIL-M-38510 types or as a waiver of any of the provisions of MIL-PRF-38535.

      Military device type                                                             Generic-industry type        

01                                                                                     UC1846

02                                                                                     UC1847

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