UH Series. Preliminary Data Sheet. 1/2 Brick 800W REFERENCED THERMAL IMAGES

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1 UH Series 1/2 Brick 8W The UH series provides up to 8W/67A outputs with industry standard half brick package. The efficient SR stage is combined with patented Buck Reset topology that would reduce power loss to achieve 219W/in3 power density. The multi-layer single side circuit board design plus the patented Sink-Plate technology would enhance the thermal performance and improve its reliability. Modules are designed for Telecom, Servers, Networking equipments and other applications that use a 48V input bus. Preliminary Data Sheet PART NUMBER SYSTEM(Total height = standoff height + module thickness) UH 48 Serie Rated Input s Name UH 33 a Rated Output Enable Logic b c Pin Standoff Length Height 24=18V~36V Unit:.1V P: Positive =36V~75V Increments N: Negative = 12V = 3.3V 3.24 d Base-Plate / module thickness - N Current Share M 1.mm Metal Plate/.46 - N: without Current share S 3.mm Metal-Plate/.54" S: secondary A 3.mm Sink-Plate/.54 Current share B 5.mm Sink-Plate/ XX X Output Suffix Version Current ~C: for output current rating For marketing purpose only MODEL LIST (Contact to factory for special input / output) Maximum Input Maximum Output Efficiency Part Number UH4848abcd-N17XXX 36V~75V 887W 48V/17A 816W 93% UH4828abcd-N29XXX 36V~75V 883W 28V/29A 812W 93% UH4812abcd-N67XXX 36V~75V 874W 12V/67A 84W 94% Part Number Maximum Input Maximum Output Efficiency REFERENCED THERMAL IMAGES UH4828N2M-S29 (Io= 15A@5 C/2LFM) UH4828N2M-S29 (Io= 19.5A@5 C/4LFM) http: service@glary.com Fax: / 5 R14A

2 UH Series SPECIFICATIONS Absolute Maximum Ratings Operation Storage Operation: -4 C to +11 C -55 C to +125 C Transient (1mS): -.5V to +8Vdc Input to Output Input to Case Output to Case 1V Maximum 2.KV Minimum 1.KV Minimum 1.KV Minimum -.5V to +12Vdc Conversion Efficiency Typical See table Switching Frequency Typical 33KHz MTBF Bellcore TR-332 issue 6 TAVG or TC 1mm Metal-plate 3mm Sink-plate C (UH4828abcd-N29XXX) 11 C ±5 C for standard setting 87g 94g Logic High Logic Low +3.V to +6.5V V to +1.V Temperature Input Voltage Range Isolation Voltage Remote Control General Parameters OTP Weight Control Functions Remote Control Input Current of Remote Control Pin -.5mA ~ +1.5mA Input Operation Voltage Range LEXT = 1uH +36V to +75Vdc 5mA rms/2map-p +34.V to +36.Vdc VNOM +31.2V to +33.2Vdc Off State Input Current Latch-State Input Current VNOM 8mA Max 22.uF Max Voltage Accuracy Typical ±1.% Line Regulation Full Input Range ±.3% Load Regulation %~1% ±.3% Temperature Drift -4 C ~1 C ±.3%/ C Output Tolerance Band All Conditions ±4% Ripple & Noise (2MHz) Peak-Peak (RMS) 3% (1%) VO Over Voltage Protection VNOM, 1% Load 115~13 %VO Output Current Limits VNOM 18%~125% Voltage Trim VNOM, 1% Load ±1% Input Ripple Rejection (<1KHz) VNOM, Full Load -5dB Step Load (2.5A/μS) 5%~75% Load ±6%Vo/5μS Start-Up Delay Time VNOM, Full Load 5mS/25mS Reflected Ripple Current Power ON Voltage Ranges Power OFF Voltage Ranges Input Capacitance 6mA Max Output http: service@glary.com Fax: / 5 R14A

3 UH Series TYPICAL WAVES AND CURVES Start-up waveform of UH4828P2S-S29 (VIN: 48V, Load: 29A) Transient response of UH4828P2S-S29 (VIN: 48V, Load: Eff. W V 48V 75 Input/Output ripples of UH4828P2S-S29 (VIN: 48V, Load: 29A, LIN=1uH) 36V 48V 1 75V 7 75V Io 29 Efficiency plot of UH4828P2S-S Io Io 29 Power loss curves of UH4828P2S-S m/s.5m/s 1.m/s 1.5m/s 2.m/s m/s.5m/s 1.m/s 1.5m/s 2.m/s Io Ta Calculated derating of UH4828P2S-S29 (TAVG= 1ºC) Ta Calculated derating of UH4828P2S-S29 (TAVG= 12ºC) http: service@glary.com Fax: / 5 R14A

4 UH Series MECHANICAL DRAWING Side view Module Thickness Standoff Height Mounting Inserts M3 threaded (4 pcs) Pin Length 1.9 (48.3) Side view 2.1 (53.34) Bottom view -Vi(1) (1)-Vo (9)SCS CASE(2) (61.5) (5.8) (8)-S.6 (15.24) 1.4 (35.56).2 (5.8).3 (7.62) (7)TRIM ON/OFF(3).4 (1.2) (7 plcs).6 (15.24) (6)+S.4 (1.16).8 (2.3) (2 plcs) (5)+Vo +Vi(4).51 (12.96).22 (5.59) 2.4 (51.82) 2.46 (62.5) Dimensions and Pin Connections Designation Function Description Pin # Dimensions: inches (mm) +IN Positive input 1 Tolerances:.xx±.2 (.x±.5).xxx±.1 (.x±.25) PC Remote control. To turn-on and turn-off output. 2 Mass: 87g / 1.mm Metal Plate -IN Negative input 3 -Vo Negative output 4 Base plate: Aluminum alloy with anode oxide -S Negative remote sense 5 Mounting inserts: Stainless steel TRIM Output voltage adjust 6 Maximum torque: 3.9 in-ib (.44Nm) +S Positive remote sense 7 Pin material: Copper alloy or Brass +Vo Positive output 8 Pin plating: Golden over Nickel 94g / 3.mm Sink Plate http: service@glary.com Fax: / 5 R14A

5 UH Series REFERENCED EMC CIRCUIT Referenced Input Filter Circuit Referenced input filter circuit The circuit shown in left-hand side can be used as a design reference for customer system. The EMC performance of customer s system depends on the whole system design. It should be noted that modifications on the circuit parameters and fine adjustment of the final layout affect the final EMC performance. Since no components are ideal for infinite frequency range. The bandwidth of EMC components should be taking into consideration when designing an EMC filter circuit. EXTERNAL OUTPUT CAPACITANCE For reducing the ripple/noise voltage on the load or the peak voltage deviation caused by a step load, additional capacitor is required for decoupling the unwanted voltage components from the load. Since the step load performance is mainly dominated by the feedback loop performance, which also affected by the additional output capacitance. To put some low-bandwidth high capacitance Electrolytic capacitors very close to the power module help nothing and even introduces unwanted effects on the feedback performance, sinking or sourcing surge current damaging the power module. Glary suggest to put a low ESR capacitor with simply sufficient capacitance to handle the short duration high frequency component of ripple/noise or voltage peak deviation, and the capacitor needs to be as close as possible to the load. Do not add capacitor for no reason. NOTE: 1. It is recommended that the input should be protected by fuses or other protection devices. 2. All specifications are typical at nominal input, full load and 25 C unless otherwise noted. 3. Specifications are subject to change without notice. 4. Printed or downloaded datasheets are not subject to Glary document control. 5. Product labels shown, including safety agency certificates, may vary based on the date of manufacture. 6. Information provided in this documentation is for ordering purposes only. 7. This product is not designed for use in critical life support systems, equipment used in hazardous environments, nuclear control systems or other such applications, which necessitate specific safety and regulatory standards other than the ones listed in this datasheet. IMPORTANT General specifications and the performances are related to standard series only, no special customer specification display here except requested items. In order to secure effective usage of converter and the validity of Glary's service and warranty coverage, please refer to the application notes for general usage. For needs of usage beyond the application notes, please contact to Glary headquarter or our regional sales representative office for help. http: service@glary.com Fax: / 5 R14A

6 UH Series Half Brick up to 6W/12A The UH series provides up to 6W/12A outputs with industry standard half brick package. The efficient SR stage is combined with patented Buck Reset topology that would reduce power loss to achieve 219W/in3 power density. The multi-layer single side circuit board design plus the patented Sink-Plate technology would enhance the thermal performance and improve its reliability. Modules are designed for Telecom, Servers, Networking equipments and other applications that use a 24V or 48V input bus. PART NUMBER SYSTEM UH a b c d - N 12 xx x Series Name Input Voltage Output Voltage Enable Logic Pin Dimension Standoff Height Base-Plate / module thickness (Total Height = c + d) Current Share Output Current Suffix Version UH Unit:.1V 48=36V~75V Increments P: Positive 24=18V~36V 28=28V N: Negative 12=12V :.12 1:.16 2:.2 3:.24 :.2 1:.8 2:.16 M:1.mm Metal Plate/.46 N:without S:3.mm Metal-Plate/.54" Current share - A:3.mm Sink-Plate/.54 S:secondary B:5.mm Sink-Plate/.62 Current share ~C: for output current rating For marketing purpose only MODEL LIST (Contact to factory for special input / output) Part Number Maximum Input Maximum Output Efficiency Part Number Maximum Input Maximum Output Efficiency UH4848abcd-N12xxx 36V~75V 627W 48V/12A 576W 92% UH2448abcd-N11xxx 18V~36V 548W 48V/1.5A 54W 92% UH4828abcd-N21xxx 36V~75V 64W 28V/21A 588W 92% UH4828abcd-N18xxx 18V~36V 548W 28V/18A 54W 92% UH4812abcd-N5xxx 36V~75V 653W 12V/5A 6W 92% UH2412abcd-N42xxx 18V~36V 548W 12V/42A 54W 92% UH485abcd-NAxxx 36V~75V 55W 5V/1A 5W 91% UH485abcd-NAxxx 18V~36V 55W 5V/1A 5W 91% UH4833abcd-NCxxx 36V~75V 44W 3.3V/12A 396W 9% UH2433abcd-NCxxx 18V~36V 44W 3.3V/12A 396W 9% REFERENCED THERMAL IMAGES UH485PB-NA (Io= 5A@5 C/2LFM) UH485PB-NA (Io= 61A@5 C/4LFM) http: service@glary.com Fax: /5 R13A

7 UH Series SPECIFICATIONS Absolute Maximum Ratings Temperature Input Voltage Range Isolation Voltage Remote Control Operation Storage Operation: Transient (1mS): Input to Output Input to Case Output to Case -4 C to +11 C -55 C to +125 C -.5V to +4Vdc -.5V to +8Vdc 5V Maximum 1V Maximum 2.KV Minimum 1.KV Minimum 1.KV Minimum -.5V to +12Vdc General Parameters Conversion Efficiency Typical See table Switching Frequency Typical 3KHz MTBF Bellcore TR-332 issue C (UH485abcd-NAxxx) OTP Internal 11 C(Tc) ±5 C Weight 1.mm Metal Plate 3.mm Sink Plate 87g 94g Control Functions Remote Control Input Current of Remote Control Pin Logic High Logic Low +3.V to +6.5V V to +1.V -.5mA ~ +1.5mA Input Operation Voltage Range +18V to +36Vdc +36V to +75Vdc Reflected Ripple Current L EXT = 1uH 8mA rms/3map-p Power ON Voltage Ranges +17.V to +18.Vdc +34.V to +36.Vdc Power OFF Voltage Ranges +15.6V to +16.6Vdc +31.2V to +33.2Vdc Off State Input Current V NOM 6mA Max Latch-State Input Current V NOM 8mA Max Input Capacitance 48.uF Max 2.uF Max Output Voltage Accuracy Typical ±1.% Line Regulation Full Input Range ±.3% Load Regulation %~1% ±.3% Temperature Drift -4 C ~1 C ±.3%/ C Output Tolerance Band All Conditions ±4% Ripple & Noise (2MHz) Peak-Peak (RMS) 3% (1%) V O Over Voltage Protection V NOM, 1% Load 115~13 %V O Output Current Limits V NOM 18%~125% Voltage Trim V NOM, 1% Load ±1% Input Ripple Rejection (<1KHz) V NOM, Full Load -5dB Step Load (2.5A/µS) 5%~75% Load ±6%Vo/5µS Start-Up Delay Time V NOM, Full Load 5mS/25mS http: service@glary.com Fax: /5 R13A

8 UH Series TYPICAL WAVES AND CURVES Start-up waveform of UH485abcd-NAxxx (VIN: 5V, Load: 1A) 1 Transient response of UH485abcd-NAxxx (VIN: 5V, Load: 7.A/5.A@2.5A/µS) Input/Output ripples of UH485abcd-NAxxx (VIN: 5V, Load: 1A, LIN=1uH) Eff. (%) V V V Load(A) 4LFM 3LFM 2LFM 1LFM 2LFM Ambient Temperature ( C) Load (A) Efficiency plot of UH485abcB-NAxxx Derating curves of UH485abcB-NAxxx for TC= 11 C Start-up waveform of UH4812abcd-N5xxx (VIN: 48V, Load: 5A) 1 Transient response of UH4812abcd-N5xxx (VIN: 48V, Load: 38.A/25.A@2.5A/µS) Input/Output ripples of UH4812abcd-N5xxx (VIN: 48V, Load: 5A, LIN=1uH) Eff. (%) V V V Load(A) 4LFM 3LFM 2LFM 1LFM 2LFM Ambient Temperature ( C) Load (A) Efficiency plot of UH4812abcB-N5xxx Derating curves of UH4812abcB-N5xxx for TC= 11 C http: service@glary.com Fax: /5 R13A

9 UH Series OPEN FRAME PACKAGE Module Thickness Side view Mounting Inserts M3 threaded (4 pcs) Standoff Height 1.9 (48.3) 2.1 (53.34) Bottom view Pin Length Side view -Vi(1) (1)-Vo (9)SCS.2 (5.8).4 (1.2) (7 plcs) 2.42 (61.5) 2. (5.8) 1.4 (35.56).6 (15.24) CASE(2) ON/OFF(3) (8)-S (7)TRIM (6)+S.3 (7.62).4 (1.16).6 (15.24).8 (2.3) (2 plcs) +Vi(4) (5)+Vo.51 (12.96).22 (5.59) 2.4 (51.82) 2.46 (62.5) Dimensions and Pin Connections Designation Function Description Pin # -Vi Negative input 1 CASE Connected to base plate 2 ON/OFF Remote control. To turn-on and turn-off output. 3 +Vi Positive input 4 +Vo Positive output 5 +S Positive remote sense 6 TRIM Output voltage adjust 7 -S Negative remote sense 8 SCS Secondary current share bus 9 -Vo Negative output 1 Dimensions: inches (mm) Tolerances:.xx±.2 (.x±.5).xxx±.1 (.x±.25) Mass: 87g / 1.mm metal plate 94g / 3. mm metal plate Base plate: Aluminum alloy with anode oxide Mounting inserts: Stainless steel Maximum torque: 3.9 in-ib (.44Nm) Pin material: Copper alloy or Brass Pin plating: Golden over Nickel http: service@glary.com Fax: /5 R13A

10 UH Series REFERENCED EMC CIRCUIT Referenced EMC Performance The tested result shown in left-hand side is obtained by loading the power module with a resistive load only. It can be used as a design reference for customer system. However! The performance of customer s system depends on the whole system design. It should be noted that modifications on the circuit parameters and fine adjustment of the final layout affect the final EMC performance greatly. Measured conductive level of UH4812abcd-S5xxx and referenced filter circuit Bandwidth of EMC Components No components are ideal for infinite frequency range. The bandwidth of EMC components should be taking into consideration when designing an EMC filter circuit. To connect ceramic capacitor with electricity capacitor in parallel and connect low inductance inductor with big one could get a better bandwidth. NOTE: 1. It is recommended that the input should be protected by fuses or other protection devices. 2. All specifications are typical at nominal input, full load and 25 C unless otherwise noted. 3. Specifications are subject to change without notice. 4. Printed or downloaded datasheets are not subject to Glary document control. 5. Product labels shown, including safety agency certificates, may vary based on the date of manufacture. 6. Information provided in this documentation is for ordering purposes only. 7. This product is not designed for use in critical life support systems, equipment used in hazardous environments, nuclear control systems or other such applications, which necessitate specific safety and regulatory standards other than the ones listed in this datasheet. IMPORTANT General specifications and the performances are related to standard series only, no special customer specification display here except requested items. In order to secure effective usage of converter and the validity of Glary's service and warranty coverage, please refer to the application notes for general usage. For needs of usage beyond the application notes, please contact to Glary headquarter or our regional sales representative office for help. http: service@glary.com Fax: /5 R13A