DATASHEET & RELIABILITY DATA

DATASHEET & RELIABILITY DATA KSP5 SERIES 오디피 Open Digital Power Corp. FAX : 82-31-445-7388 1

Contents - Introduction 3~4 page - Datasheet 5~13 page 1. Internal Circuit Architecture 2. Maximum Ratings 3. Electrical Charateristics 4. Isolation Charateristics 5. Gerneral Charateristics 6. Environment 7. Characteristics Curves - Reliability Data 14~23 page 1. MTBF 2. Environmental Stress Test 3. Main Components Δt Test 4. Derating of semiconductor (IC, FET) - Application Sheet 24~3 page 1. Basic Connection 2. Input Section 3. Output Section 4. Environment 5. Isolation 6. Outline Dimensions FAX : 82-31-445-7388 2

MAX. Power 5.W Isolated DC-DC Converter KSP5 Series Small Size Excellent Efficiency DC-DC Converter - Introduction 1. Features Six side shield compact size Excellent Efficiency & Reliability Built in ceramic Capacitor only (high reliability) Isolated Input - Output 3kHz fixed frequency & Current mode Control Low output Ripple & Noise Built-in over current protection circuit Built-in over voltage protection circuit Positive logic input remote on/off control Adjustable output voltage Wide 2 :1 input range RoHS compatible design Built-in Input UVLO (Under Voltage Lock Out) Safety : NRTL/CE Standard(UL/EN695-1) (Approvals pending) 2. Applications Electric vehicle, Railroad Industrial applications Distributed Power Systems FA control Data and telecommunication 3. Environment Operating Temperature : -4 ~ 85 (Refer to derating curve) Operating Humidity Storage Temperature : -4 ~ 15 Cooling : 5% ~ 95% RH (Non condensing) : Free-Air Convection or Forced air(refer to derating curve) MTBF : 3.6 * 1 5 hrs FAX : 82-31-445-7388 3

4. Model Name Structure KSP5-24 -12 Series Name Output Voltage Output Power Input Voltage(Typ.) 5. Pin assignments & Function - Single Output Name & Function PIN No. NAME FUNCTION 1 CNT Remote on/off Control 2 -Vin Negative terminal for Vin 3 +Vin Positive terminal for Vin 4 +Vout Positive terminal for Vout 5 -Vout Negative terminal for Vout 6 TRM Vout variation(±1%) by external parts FAX : 82-31-445-7388 4

- Datasheet 1. Internal Circuit Architecture 2. Maximum Ratings Characteristics KSP5-24 - XX Symbol Min. Typ. Max. Unit 18-36 Input Voltage Continuis KSP5-48 - XX KSP5-72 - XX Vin 36-75 55-9 VDC KSP5-11 - XX 65-15 Operating Ambient Temperature Storage Temperature Withstand Voltage Ta -4-7 Tstg -4-15 - - 5 Vac FAX : 82-31-445-7388 5

3. Electrical Characteristics - Input Section Ta : 25, Vin : Typical Input Voltage Operating Voltage Range Under Voltage Lock Out (UVLO) Maximum Input Current (Vin : rated, Io : 1%) No Load Input Current (Vin : rated) Characteristics KSP5-24 - XX KSP5-48 - XX KSP5-11 - XX Power up Threshold Power down Threshold (after turn-on) KSP5-24 - XX KSP5-48 - XX KSP5-11 - XX KSP5-24 - XX KSP5-48 - XX KSP5-11 - XX - Output Section Symbol Min. Typ. Max. Unit 18 24 36 36 48 75 55 72 9 65 11 15 KSP5-24 15 16 17 KSP5-48 31 33 35 KSP5-72 46 48 5 KSP5-11 54 57 6 KSP5-24 14 15 16 KSP5-48 29 31 33 KSP5-72 43 45 47 KSP5-11 49 52 55 Ta : 25, Vin : Minimum, Typical, Maximum Input Voltage Characteristics Output Voltage Accuracy Regulation KSP5-72 - XX KSP5-72 - XX KSP5-72 - XX Line Regulation (From min. Vin to max. Vin, constant load) Load Regulation (From no load to maximum load) Output Ripple and Noise (Vin : Rated, Io : Max., BW : 2MHz, use the external capacitor between +Vo and -Vo (MLCC : 15, el-cap. : 47uF)) Vin Iin 2.28 1.14.78.53 Symbol Min. Typ. Max. Unit Vo - - ±2 % mvp-p - - - - - - ±.5 VDC VDC A ma % ±1 % 1% of Vout note1 mvp-p (peak to peak) note1. 3.3Vout : 75mVp-p, 5Vout : 75mVp-p FAX : 82-31-445-7388 6

Characteristics KSP5 - XX - 3R3 Symbol Min. Typ. Max. Unit - - 11. Output Current KSP5 - XX - 5 KSP5 - XX - 12 Io - - 1. - - 4.2 A KSP5 - XX - 15 - - 3.3 Output Current Limit (OCP : Over Current Protection, recovers automatically) 15 - - % Dynamic Load Response (Vin : rated, Io : from 25% to 5%, from5% to 25%, BW : 2MHz, Freq. : 1Hz, Duty :.5, Tr/Tf : 1us) - - 3% of Vout mvp-p (peak to peak) Start - Up Time Turn - on Overshoot Tstart - - 1 ms - - 5 % KSP5-24 - 3R3-9 - KSP5-24 - 5 KSP5-24 - 12-92 - - 93 - % KSP5-24 - 15-93 - KSP5-48 - 3R3-9 - Efficiency (Vin : Rated. Io : Max.) KSP5-48 - 5 KSP5-48 - 12 KSP5-48 - 15 KSP5-72 - 3R3 KSP5-72 - 5 KSP5-72 - 12-92 - - 93 - - 93 - - 9 - - 91 - - 9 - % % KSP5-72 - 15-9 - KSP5-11 - 3R3-86 - KSP5-11 - 5 KSP5-11 - 12-89 - - 88 - % KSP5-11 - 15-88 - FAX : 82-31-445-7388 7

4. Isolation Characteristics Withstand Voltage (AC5V, 1minute) Characteristics Input - Output Input - Case Output - Case Symbol Min. Typ. Max. Unit - - 5 Vac - - 5 Vac - - 5 Vac Isolation Resistance (DC5V at 25 and 7%RH) Output - Case Riso 1 - - MΩ 5. General Characteristics Characteristics Remote on / off control (CNT Pin, Positive Logic Module on : Logic High or open Module off : Logic Low or Short to -Vin) Symbol Min. Typ. Max. Unit CNT External Trim Adj. Range (TRM Pin, Vout variation by external parts) TRM -1 - +1 % Switching Frequency MTBF (MIL-HDBK-217F) Dimension (W x H x L) Weight 3 3.6 * 1 5 51. x 43.2 x 16. khz hrs mm - 74 - grams 6. Environment Characteristics Operating Temperature Range Operating Humidity (non Condensing) Storage Temperature Symbol Min. Typ. Max. Unit Ta -4-85 5-95 %RH Tstg -4-15 FAX : 82-31-445-7388 8

Efficiency(%) Efficiency(%) Efficiency(%) Efficiency(%) KSP5 Series DC-DC Converter 7. Characteristics Curves - KSP5 Series Efficiency Curves 1 9 8 7 6 5 4 3 2 1 < KSP5-24 - 3R3 > < KSP5-24 - 5 > 1 9 84 91.265 7 9 93.355 91 6 93.5 9 5 92.68 4 3 2 1 25 5 75 1 25 5 75 1 8 1 1 83.45 9 85.915 9 89.955 891.67 92.325 8 93.36 93.155 7 93.755 7 6 < KSP5-24 - 12 > < KSP5-24 - 15 > 5 5 4 4 3 3 2 2 1 1 25 5 75 1 25 5 75 1 6 FAX : 82-31-445-7388 9

Efficiency(%) Efficiency(%) Efficiency(%) Efficiency(%) KSP5 Series DC-DC Converter 1 9 8 7 6 5 4 3 2 1 < KSP5-48 - 3R3 > < KSP5-48 - 5 > 1 9 8 8.84 89.455 88.915 6 93.36 9.45 5 93.745 9.85 93.9 3 2 1 25 5 75 1 25 5 75 1 7 4 1 1 81.25 9 84.375 9 89.125 89.99 92 8 93.2 92.72 7 93.375 7 6 < KSP5-48 - 12 > < KSP5-48 - 15 > 5 5 4 4 3 3 2 2 1 1 25 5 75 1 25 5 75 1 6 FAX : 82-31-445-7388 1

Efficiency(%) Efficiency(%) Efficiency(%) Efficiency(%) KSP5 Series DC-DC Converter 1 9 8 7 6 5 4 3 2 1 < KSP5-72 - 3R3 > < KSP5-72 - 5 > 1 9 76 8 86.67 87 92.37 7 9 92.155 9 6 91.85 5 4 3 2 1 25 5 75 1 25 5 75 1 1 1 79.97 981.38 9 88.35 888.68 9.73 8 9.33 9.97 7 91.115 7 6 < KSP5-72 - 12 > < KSP5-72 - 15 > 5 5 4 4 3 3 2 2 1 1 25 5 75 1 25 5 75 1 6 FAX : 82-31-445-7388 11

Efficiency(%) Efficiency(%) Efficiency(%) Efficiency(%) KSP5 Series DC-DC Converter 1 9 8 7 6 5 4 3 2 1 < KSP5-11 - 3R3 > < KSP5-11 - 5 > 9 8.63 8 82.43 87.75 9.51 7 89.34 91.79 89.64 6 91.69 5 4 3 2 1 25 5 75 1 25 5 75 1 1 1 1 81.75 9 83.83 9 88.53 8 88.69 9.83 8 89.96 91.49 7 9.34 7 6 < KSP5-11 - 12 > < KSP5-11 - 15 > 5 5 4 4 3 3 2 2 1 1 25 5 75 1 25 5 75 1 6 FAX : 82-31-445-7388 12

- KSP5 Derating curve <KSP5-24-XX> <KSP5-48-XX> <KSP5-72,11-XX> FAX : 82-31-445-7388 13

- Reliability Data 1. MTBF Calculating Reliable Values of MTBF Calculated based on part count reliability projection of MIL-HDBK-217F individual failure rates λg is given to each part and MTBF is calculated by the count of each part. Method is : MTBF = For a given equipment environment where : λ equip = Total equipment failure rate (Failures / 1^6 Hours) λg = Generic failure rate for the i th generic part (Failures / 1^6 Hours) πq = Quality factor for the i th generic part ( πq= 1) Ni n i=n i=1 1 6 Ni λg πq i = Quanty of i th generic part = 16 λ equip [ hours] = Number of different generic part categories in the equipment PART Number Failure Rate Failure Rate 1 Logic IC 1.15.15 2 FET 5.12.6 3 Voltage Regulaor 1.2.2 4 Diode (Zener) 4.2.8 5 Diode (FRD) 2.69.138 6 Diode (SBD) 1.27.27 7 Bridge Diode.66-8 LED.23-9 Varistor.13-1 Photo-coupler 2.7.14 11 Thyristor 1.22.22 12 Elec.- Cap..19-13 Ceramic Cap. 37.26.962 14 MLCC.53-15 Choke coil 1.22.22 16 Switching transformer 3.42.126 17 Line Filter.44-18 Resistor 31.24.744 19 Resistor Variable.24-2 Thermister.19-21 Connertor.52-22 Soldering Point 123.78.9594 23 PCB 1.37.37 24 Fuse.1 - Total Equipment Failure Rate (λequip) 2.7782 MTBF = 1^6 / λequip(f/t) 36,93.992 MTBF 36,[Hours] FAX : 82-31-445-7388 14

2. Environmental Stress Test(EST) The purpose of the environment stress test is to ensure reliability by setting in advance the following environment and verified. - transport process and conservation status - environmental change conditions that can be applied to the product from the process of the end-user Test cycle consists of 1 segments(total 1 hours). Test results of all segments must meet the specifications. (refer to Fig.1 & Table1) < Fig.1 : Test Cycle > Segment Time Temp. Humidity Description Input 'SW' A 2 hours -4 % Low temperature storage off B 4 hours -4 % Low temperature operation on C 12 hours 25 % Room temperature operation on D 1 hours -2 % Low temperature operation on E 12 hours 5 % High temperature operation on F 12 hours 5 5% High-temperature & humidity operation on G 12 hours 25 % Room temperature operation on H 4 hours 5 9% High-temperature & humidity operation on I 4 hours 15 % High temperature storage off J 19 hours 25 % Room temperature operation on < Table1 : Segment Description > FAX : 82-31-445-7388 15

Time 3h 7h 11h 15h 19h 23h 27h 31h 35h 39h 43h 47h 51h 55h 59h 63h 67h 71h 75h 79h 83h 87h 91h 95h 99h KSP5 Series DC-DC Converter 2.1. Environmental Stress Test Results a. Test Sample : KSP5-24-5 b. 1 hours in one cycle CH1 test graph Time Tamb. CH2 T1 Coil CH3 T1 Core CH4 T1 Core 12 h 2.9 21.6 21.4 1 8 6 4 2 Tamb. T1 Coil T1 Core -2-4 -6 c. Characteristics test results (@ Input Voltage : 24VDC) Segment Test Time T amb. /Humi. Output Voltage Start up Ripple / Noise Output Load Condition A 3h -4 / % 4.97V OK 47 [mvp-p] B 9h 25 / % 4.98V OK 47 [mvp-p] C 24h -2 / % 4.98V OK 47 [mvp-p] D 33h 5 / % 4.97V OK 51 [mvp-p] E 48h 5 / 5% 4.98V OK 51 [mvp-p] F 58h 25 / % 4.98V OK 51 [mvp-p] G 72h 5 / 9% 4.97V OK 51 [mvp-p] H 81h 25 / % 4.98V OK 51 [mvp-p] I 1h 25 / % 4.97V OK 51 [mvp-p] Test Result Pass Pass Pass FAX : 82-31-445-7388 16

Time 3h 7h 11h 15h 19h 23h 27h 31h 35h 39h 43h 47h 51h 55h 59h 63h 67h 71h 75h 79h 83h 87h 91h 95h 99h KSP5 Series DC-DC Converter d. Test Sample : KSP5-48-12 e. 1 hours in one cycle CH1 test graph Time Tamb. MIN CH2 T1 MINCoil CH3 L2 MINCoil CH4 T1 Core 12 h 23.2 23.5 23.7 1 8 6 4 2 Tamb. T1 Coil L2 Coil -2-4 -6 f. Characteristics test results (@ Input Voltage : 48VDC) Segment Test Time T amb. /Humi. Output Voltage Start up Ripple / Noise Output Load Condition A 3h -4 / % 12.8V OK 112 [mvp-p] B 9h 25 / % 12.1V OK 112 [mvp-p] C 24h -2 / % 12.6V OK 112 [mvp-p] D 33h 5 / % 11.98V OK 112 [mvp-p] E 48h 5 / 5% 11.99V OK 112 [mvp-p] F 58h 25 / % 12.V OK 112 [mvp-p] G 72h 5 / 9% 11.99V OK 13 [mvp-p] H 81h 25 / % 12.4V OK 13 [mvp-p] I 1h 25 / % 11.99V OK 13 [mvp-p] Test Result Pass Pass Pass FAX : 82-31-445-7388 17

Time 3h 7h 11h 15h 19h 23h 27h 31h 35h 39h 43h 47h 51h 55h 59h 63h 67h 71h 75h 79h 83h 87h 91h 95h 99h KSP5 Series DC-DC Converter g. Test Sample : KSP5-72-12 h. 1 hours in one cycle CH1 test graph Time Tamb. CH2 T1 Coil CH3 L2 Coil CH4 T1 Core 12 h 24.7 25.4 26.1 1 8 6 4 2 Tamb. T1 Coil L2 Coil -2-4 -6 i. Characteristics test results (@ Input Voltage : 72VDC) Segment Test Time T amb. /Humi. Output Voltage Start up Ripple / Noise Output Load Condition A 3h -4 / % 12.6V OK 112 [mvp-p] B 9h 25 / % 12.3V OK 112 [mvp-p] C 24h -2 / % 12.2V OK 112 [mvp-p] D 33h 5 / % 12.2V OK 112 [mvp-p] E 48h 5 / 5% 12.1V OK 112 [mvp-p] F 58h 25 / % 12.2V OK 112 [mvp-p] G 72h 5 / 9% 12.1V OK 112 [mvp-p] H 81h 25 / % 12.4V OK 112 [mvp-p] I 1h 25 / % 12.1V OK 112 [mvp-p] Test Result Pass Pass Pass FAX : 82-31-445-7388 18

Time 3h 7h 11h 15h 19h 23h 27h 31h 35h 39h 43h 47h 51h 55h 59h 63h 67h 71h 75h 79h 83h 87h 91h 95h 99h KSP5 Series DC-DC Converter j. Test Sample : KSP5-11-5 k. 1 hours in one cycle CH1 test graph Time Tamb. MIN CH2 T1 MINCoil CH3 L2 MINCoil CH4 T1 Core 12 h 24.7 25.1 25.3 1 8 6 4 2 Tamb. T1 Coil L2 Coil -2-4 -6 l. Characteristics test results (@ Input Voltage : 11VDC) Segment Test Time T amb. /Humi. Output Voltage Start up Ripple / Noise Output Load Condition A 3h -4 / % 4.8V OK 68 [mvp-p] B 9h 25 / % 4.82V OK 61 [mvp-p] C 24h -2 / % 4.83V OK 61 [mvp-p] D 33h 5 / % 4.79V OK 53 [mvp-p] E 48h 5 / 5% 4.8V OK 53 [mvp-p] F 58h 25 / % 4.81V OK 53 [mvp-p] G 72h 5 / 9% 4.79V OK 53 [mvp-p] H 81h 25 / % 4.87V OK 53 [mvp-p] I 1h 25 / % 4.8V OK 53 [mvp-p] Test Result Pass Pass Pass FAX : 82-31-445-7388 19

3. Main Components Δt Test The purpose of the test is to ensure the reliability and margin by measuring the heating value of the main components. 3.1. KSP5-24-5 (@, Airflow : 1m/s) Test Point Test Condition Vin : 18VDC Vin : 24VDC Vin : 36VDC T amb. 34.4 T amb. 33.4 T amb. 31.8 Tc Δt Tc Δt Tc Δt IC Input FET Sync. FET Freewheeling FET Trans Coil Trans Core Inductor Coil Inductor Core 66.2 31.8 61.5 28.1 66.5 34.7 88.3 53.9 78.2 44.8 84.2 52.4 8.4 46. 71.6 38.2 71.9 4.1 76.2 41.8 73.7 4.3 78.2 46.4 75.2 4.8 69. 35.6 69.5 37.7 66.7 32.3 61.5 28.1 63.2 31.4 63.3 28.9 64.3 3.9 7. 38.2 5. 15.6 5.8 17.4 54.5 22.7 3.2. KSP5-11-5 (@, Airflow : 1m/s) Test Point Test Condition Vin : 65VDC Vin : 11VDC Vin : 15VDC T amb. 28.7 T amb. 28.8 T amb. 29.4 Tc Δt Tc Δt Tc Δt IC Input FET Sync. FET Freewheeling FET Trans Coil Trans Core Inductor Coil Inductor Core 58.6 29.9 68.7 39.9 71.6 42.2 65.5 36.8 78.6 49.8 81.7 52.3 62. 33.3 69.2 4.4 71. 41.6 63.5 34.8 74.9 46.1 77.7 48.3 63.4 34.7 72. 43.2 72.1 42.7 62.1 33.4 71.3 42.5 72.1 42.7 68.8 4.1 77.3 48.5 8.4 51. 65.3 36.6 75. 46.2 77.5 48.1 FAX : 82-31-445-7388 2

4. Derating of Semiconductor Compare Tjmax(maximum junction temperature) and TJ and is expressed as a percentage. Tj is the value calculated by the temperature of the case and the power dissipation and the thermal impedance. - Measuring Components : FET, Rectifier diode - Calculating method of derating ratio T j = T c + (R Θ(J-C) P d ) T c : Case Temperature R Θ(J-C) : Thermal impedance between junction and case P d : Power dissipation 4.1. KSP5-24-5 (@, Airflow : 1m/s) Condition Components Vin : 18VDC Load : 1% T amb. : 7 IC1 (Active clamp PWM IC) Q2 (Input FET) Q4 (Sync. FET) Q5 (Freewheeling FET) T j(max) : 15 P d :.14 W R Θ(J-A) : 125 /W T j = 117.4 T c : 99.9 T j(max) : 15 P d :.16 W R Θ(J-A) : 5 /W T j = 114.8 T c : 16.8 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 114.6 T c : 13.3 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 116.1 T C : 14.8 = 78.3% = 76.5% = 76.4% = 77.4% FAX : 82-31-445-7388 21

Condition Components Vin : 36VDC Load : 1% T amb. : 7 IC1 (Active clamp PWM IC) Q2 (Input FET) Q4 (Sync. FET) Q5 (Freewheeling FET) T j(max) : 15 P d :.17 W R Θ(J-A) : 125 /W T j = 126. T c : 14.7 T j(max) : 15 P d :.4 W R Θ(J-A) : 5 /W T j = 124.4 T c : 122.4 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 121.4 T c : 11.1 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 127.7 T C : 116.4 = 84.% = 82.9% = 8.9% = 85.1% 4.2. KSP5-11-5 (@, Airflow : 1m/s) Condition Components Vin : 65VDC Load : 1% T amb. : 55 IC1 (Active clamp PWM IC) Q2 (Input FET) Q4 (Sync. FET) Q5 (Freewheeling FET) T j(max) : 15 P d :.14 W R Θ(J-A) : 125 /W T j = 12.4 T c : 84.9 T j(max) : 15 P d :.9 W R Θ(J-C) : 25 /W T j = 94.1 T c : 91.8 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 1. T c : 88.3 T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 11.1 T C : 89.8 = 68.3% = 62.7% = 66.7% = 67.4% FAX : 82-31-445-7388 22

Condition Components Vin : 15VDC Load : 1% T amb. : 55 IC1 (Active clamp PWM IC) T j(max) : 15 R Θ(J-A) : 125 /W T c : 97.2 P d :.14 W T j = 114.7 = 76.5% Q2 (Input FET) T j(max) : 15 R Θ(J-C) : 25 /W T c : 17.3 P d :.2 W T j = 17.8 = 71.9% Q4 (Sync. FET) T j(max) : 15 R Θ(J-C) : 25 /W T c : 96.6 P d :.45 W T j = 17.9 = 71.9% Q5 (Freewheeling FET) T j(max) : 15 P d :.45 W R Θ(J-C) : 25 /W T j = 114.6 T C : 13.3 = 76.4% FAX : 82-31-445-7388 23

- Application Sheet 1. Basic Connection 2. Input Section - Input fuse Generally, encapsulated power supplies do not have internal fuse. To ensure safe operation, an external fuse(regular or Slow Blow Type) is recommended. Vin 24V 48V 72V 11V Series KSP5 Series 6A 3A 2A 2A - Unstable Input Input voltage is comprised of both the DC voltage(average rectified voltage)and the peak to peak ripple voltage. Peak to peak ripple voltage should be minimized so that the input voltage is within the standard input voltage range as follows. Vin Vin(max) Vin(min) < Unstable Input > t FAX : 82-31-445-7388 24

- Battery Input When using a battery as the input power supply, make sure that the maximum and minimum input voltage do not away out of the standard input voltage range. - Input Reverse-polarity voltage protection Accidentlly reversing the input connections could damage the module. Thus. If the connections may be accidentally reversed. Use a protective diode and an input fuse as shown below. - Remote On/Off Control(CNT) Without switching the input on/off, the output can be enabled and disabled using this function. This function is useful for sequence control when building multiple output power supplies. This control circuit is on the input side using the CNT pin. Ground of CNT pin is the input -V terminal. CNT level for -Vin OUTPUT High level Low level Open Short to -Vin < Positive Logic on/off Control > ON OFF - Under Voltage Lock Out(UVLO) MODEL KSP5-24 - XX KSP5-48 - XX KSP5-72 - XX KSP5-11 - XX Power Up Threshold (Typ.) 16V 33V 48V 57V Power Down Threshold (Typ.) 15V 31V 45V 52V FAX : 82-31-445-7388 25

3. Output Section - Output Ripple and Noise Measurement Method The measurement for output ripple and noise are based on normal probe with 2 MHz bandwidth scope. Upon measurement of the ripple voltage, make sure that the scope probe leads are not too long. If a precise measurement can be made, the noise occurs from circumference must be reduced. - Line Regulation The line regulation means to the change in output voltage when the input voltage is varied within the input voltage range, at constant load and constant ambient temperature. The measurement point for the input and output voltage are ±Vin pins, ±Vout pins respectively. - Load Regulation The load regulation means to the change in output voltage when the load is changed from minimum load to maximum load, at constant input voltage and constant ambient temperature. The measurement point for the input and output voltage are ±Vin pins, ±Vout pins respectively. - Output Voltage Variation(TRM) The output voltage can be varied within ±1% of the standard output voltage when use the external parts-resistors and variable resistor. External Resistors : Vo R1 R2 VR Resistance tolerance ±5% 3.3V 1.5 kω 68Ω 1 kω Variable Resistor(VR) : 5V 1 kω 68Ω 1 kω Total resistance toloatace ±2% 12V 3.9 kω 68Ω 1 kω Remaining Resistance : Value less than 1% 15V 5.6 kω 75Ω 1 kω +V -V TRM R1 R2 VR - + LOAD < Trim Method > FAX : 82-31-445-7388 26

- Over Current Protection(OCP) The KSP5 series is built into an OCP(Over Current Protection) circuit. When the OCP triggers, the output voltage will be fall. If overload condition is removed, the output will automatically recover. - Over Voltage Protection(OVP) The KSP5 series is built into an OVP(Over Voltage Protection) circuit. When the OVP triggers, the output voltage is shutdown. The input must be taken out (for at least five seconds), and than reinputted manually. Otherwise, the module will not output. 4. Environment - Temperature Operation Temperature The range of ambient temperature in over which a module can be operated safely at either rated or derated output power. Refer to derating curve as page 1. Storage Temperature The range of ambient temperature in over which a module may be stored long term without damage. The storage temperature range is from -4 to 15. - Humidity Operating & Storage Humidity The range of ambient humidity in % over which a module can be operated safely at either rated or derated output power. The operating humidity range is from 5% to 95%RH. The range of ambient humidity in % over which a module may be stored long term without damage. The storage humidity range is from 5% to 95%RH. FAX : 82-31-445-7388 27

5. Isolation Isolation Resistance The electrical separation between input and output of a module by means of the power transformer. The isolation resistance is a function of materials and spacings employed throughout the module. Please don't test with a voltage above standard voltage for the Isolation Resistance Test. 5VDC, 1 MΩ 5VDC, 1 MΩ 5VDC, 7 MΩ FAX : 82-31-445-7388 28

Withstand Voltage For the withstand voltage test, the applied voltage must be increased gradually from zero to the testing value, and then decreased gradually at shut down. Especially stay away from use of a timer. Where a pulse of several times the applied voltage can be generated..5kvac 1minute.5kVAC 1minute.5kVAC 1minute FAX : 82-31-445-7388 29

6. Outline Dimensions <Unit : mm (inch)> FAX : 82-31-445-7388 3