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KA1M0380
FEATURES
- Precision fixed operating frequency (70KHz) - Pulse by pulse over current limiting - Over load protection - Internal thermal shutdown function - Under voltage lockout - Internal high voltage sense FET < - Low start up current ( 0.4mA) TO-220F
SPS
PRODUCT SUMMARY
Part Number KA1M0380 BVdss 800V Rds(on) 5 ID 3A
1.GND 2.DRAIN 3.Vcc 4.FB
ABSOLUTE MAXIMUM RATINGS ( Ta = 25 C , unless otherwise specified )
Characteristics Drain - Source(GND) Voltage (1) Drain - Gate Voltage (R =1M) (1) GS Gate - Source(GND) Voltage Rise Time (2) Fall Time (2) Drain-Sourse Off State Leakage Current ( Vds = 0V, Vgs = 0V ) C) Continuous Drain Current (Tc = 25 Supply Voltage Analog Input Voltage Range Total Power Dissipation Operating Temperature Storage Temperature

Symbol VDSS VDGR VGS Tr Tf IDSS ID VCC VFB PD ( wt H/S) Derating TOPR TSTG
Value 800 800 _ + 30 95 60 250 3.0 30 -0.3 ~ VSD 20 0.28 - 25 ~ + 85 - 55 ~ + 150
Unit V V V ns ns uA ADC V V W W/ C

C C
Notes: (1) TJ = 25 C to 150 C (2) VDD = 400V, ID = Max. Rating, V = 10V GS
Rev. B
(c)1999 Fairchild Semiconductor Corporation
KA1M0380
ELECTRICAL CHARACTERISTICS ( Control part )
( Ta = 25 C unless otherwise specified ) Symbol Characteristics Min Typ Max Unit
SPS
Test Conditions
REFERENCE SECTION Vref Output Voltage 4.80 5.00 5.20 0.3 V Ta = 25 C
__ -25 C < Ta < +85 C
Vref/ T Temperature Stability OSCILLATOR SECTION FOSC
F
0.6 mV/ C
Note1
Initial Accuracy Frequency Change with Temperature
62
67
_ +5
72
_ + 10
KHz Ta = 25 C %
__ -25 C < Ta < +85 C
/ T
PWM SECTION DMAX Maximum Duty Cycle 62 67 72 %
FEEDBACK SECTION I FB Idelay Feedback Source Current Shutdown Delay Current 1 5 mA uA Ta = 25 C , Vfb = 0
_ _ SD 5 V < Vfb < V
OVER CURRENT PROTECTION SECTION IL(MAX) Over Current Protection 1.5 1.8 2.2 A Max. Inductor Current
UVLO SECTION Vth(H) Vth(L) Start Threshold Voltage Minimum Operating Voltage 14 9 15 10 16 11 V V After turn on
KA1M0380
ELECTRICAL CHARACTERISTICS ( Continued)
( Ta = 25 C unless otherwise specified ) Symbol Characteristics Min Typ Max Unit
SPS
Test Conditions
TOTAL STANDBY CURRENT SECTION IST IOPR VZ Start up Current Operating Supply Current ( control part only ) Vcc Zener Voltage 30 0.25 15 32.5 0.4 18 35 mA VCC = 14V mA V Ta = 25 C , ICC = 20mA
SHUTDOWN SECTION VSD T SD Shutdown Feedback Voltage ThermalShutdownTemperature(Tj) 7 7.6 150 8.2 V
C
Note 1
Notes: (1) These parameters, although guaranteed,are not 100% tested in production (2) In output section, the design target is the maximum current after current clamping (3) These parameters, although guaranteed, are tested in EDS(wafer test) process.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
ACExTM CoolFETTM CROSSVOLTTM E2CMOSTM FACTTM FACT Quiet SeriesTM FAST(R) FASTrTM GTOTM HiSeCTM
DISCLAIMER
ISOPLANARTM MICROWIRETM POPTM PowerTrenchTM QSTM Quiet SeriesTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 TinyLogicTM
UHCTM VCXTM
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.

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