Datasheet

ManualsBrandsDELTA ELECTRONICS ManualsPSU ComponentsDC/DC converter (print) 36 Vdc, 3.3 Vdc 2.4 A 8 W No. of outputs: 2 x

DATASHEET

DS_DIM3R3_09102010

FEATURES

 High efficiency 98% @ 48Vin, 300W

 Size: 70.6x36.8x12.7mm (2.78”x1.45”x0.5”)

 Standard footprint

 Industry standard pin out

 Input OVP, UVLO, Output OCP, OTP

 8W (3.3Vdc) of isolated management power

for module self or other housekeeping

functions

 5V/100mA BLUE_LED power

 Input OR'ing for the A/B dual input power

feeds as well as A/B Enable signals

 Inrush protection and hot swap capability

 Integral EMI filter designed for the ATCA

board to meet CISPR Class B

 Independent 72Vdc output for charging the

external holdup capacitors resulting in

significant board real estate savings and

bleed resistor power dissipation

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing facility

 UL/cUL 60950-1 (US & Canada).

APPLICATIONS

 Telecom / Datacom

 Wireless Networks

 Optical Network Equipment

 Server and Data Storage

 Industrial / Testing Equipment

OPTIONS

 3.3V management Power

Delphi Series DIM, 300W Dual Input Power

Processing DC/DC Power Modules

The Delphi DIM series, 300W dual redundant input power processing

isolated DC/DC converter is the latest offering from a world leader in

power system and technology and manufacturing ― Delta Electronics,

Inc. This product family provides up to 300 watts of power in an industry

standard footprint and pinout. The DIM series is designed to simplify the

task and reduce the board space of implementing dual redundant, hot

swappable 48Vdc power distribution with EMI filtering and inrush

current limiting for an ATCA (Advanced Telecommunications Computing

Architecture) or other telecom boards. In addition to processing the dual

redundant 48V bus, the DIM module also provides isolated auxiliary

3.3V (8W), and/or 5V (100mA) BLUE_LED power for other

housekeeping functions. With creative design technology and

optimization of component placement, these converters possess

outstanding electrical and thermal performances, as well as extremely

high reliability under highly stressful operating conditions. All models

are fully protected from abnormal input/output voltage, current, and

temperature conditions. The Delphi DIM series converters meet all

safety requirements with basic insulation.

Summary of content (13 pages)

PAGE 1
FEATURES  High efficiency 98% @ 48Vin, 300W  Size: 70.6x36.8x12.7mm (2.78”x1.45”x0.5”)  Standard footprint  Industry standard pin out  Input OVP, UVLO, Output OCP, OTP  8W (3.
PAGE 2
TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=-48Vdc, nominal Vout unless otherwise noted;) PARAMETER ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient Operating Case Temperature Storage Temperature ISOLATION Input to MGMT_PWR Output Voltage Input to SHELF_GND Voltage Input to LOGIC_GND Voltage LOGIC_GND to SHELF_GND Insulation Resistance GENERAL SPECIFICATIONS Calculated MTBF Over-Temperature Shutdown Weight MAIN INPUT (DUAL FEED) CHARACTERISTICS Operation Input Voltage Range Inpu
PAGE 3
TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted;) PARAMETER MANAGEMENT POWER Operating Input Voltage Output Voltage Set-point Output Voltage (total) Output Regulation Line Regulation Load Regulation Temperature Regulation Output Voltage Overshoot Back-Drive Current Switching Frequency MANAGEMENT POWER (3.
PAGE 4
DIM3R3 INTERNAL BLOCK DIAGRAM PIN FUNCTIONS PIN NO.
PAGE 5
ELECTRICAL CHARACTERISTICS CURVES CH 1 CH 1 CH 3 CH 2 CH 2 CH 3 Figure 1: Input voltage turn-on threshold (2mS/div): CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div). CH2: Iin (-48V_AF, 2A/div). CH3: VRTN_OUT reference to –48V_OUT (10V/div). Figure 2: Input voltage turn-off threshold (2mS/div): CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div). CH2: Iin (-48V_AF, 2A/div). CH3: VRTN_OUT reference to. –48V_OUT (10V/div). Test conditions: (1) Feed A=37Vdc (Von slew rate= 0.
PAGE 6
ELECTRICAL CHARACTERISTICS CURVES CH1 CH4 CH2 CH2 CH3 CH3 CH1 Figure 5: Hold up performance (5mS/div): CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div). CH2: Iin (2A/div). CH3: 12V Vout (5V/div). CH4: VRTN_OUT reference to –48V_OUT (10V/div). Test conditions: (1) Feed A=48Vdc; Feed B=0Vdc (2) Q48SH12025: I(12V Out)=22.5A, I(3.3V)=2.5A, I(5V BLUE_LED PWR)=0A. (3) C2=220uF, C_hold=470uF X4 Figure 6: -48V_ALARM with loss of Feed (20mS/div): CH1: VinA (VRTN_AF reference to -48V_AF, 20V/div).
PAGE 7
ELECTRICAL CHARACTERISTICS CURVES CH 1 CH 1 CH 2 CH 2 Figure 9: MGMT_PWR (3.3V) and BLUE_LED_PWR (5V) output ripple/noise (2uS/div): CH1: Vo, MGMT_PWR (20mV/div). CH2: Vo, 5V BLUE_LED_PWR (20mV/div). Figure 10: MGMT_PWR (3.3V) dynamic response (1mS/div): CH1: Vo, MGMT_PWR (50mV/div). CH2: Io, MGMT_PWR (1A/div) Test conditions: (1) Feed A=48Vdc; Feed B=0Vdc (2) I(3.3V)=1.25A,I(5V BLUE_LED_PWR)=0.1A I(VRTN_OUT)=6.3A (3) C2=220uF, C_hold=220uF Test conditions: (1) Feed A=48Vdc; Feed B=0Vdc (2) 3.
PAGE 8
APPLICATION CIRCUITS TYPICAL VALUES FOR ABOVE COMPONENTS: POSITION VALUE F1,F2 1A, FUSE F3,F4 15A, FUSE F5,F6 15A, FUSE R1,R2 15Ω, RESISTOR R3 7.5KΩ, RESISTOR C1 22F, CAP NOTE No additional output capacitors are required, this cap are highly recommended to reduce the switching ripple and noise.
PAGE 9
FEATURES AND DESIGN CONSIDERATIONS Introduction The DIM3R3/050 module is designed to simplify the task and reduce the board space of an ATCA (Advanced Telecommunications Computing Architecture) power entry distribution requirements in the system board. EMI Filtering An internal EMI filter is designed for the ATCA board to meet the system conducted emission requirements of CISPR 22 Class B when used with Delta DC/DC converters.
PAGE 10
FEATURES AND DESIGN CONSIDERATIONS (CONTINUED) The PICMG 3.0’s requirements for the 0 Vdc transient is 5mS with 50V/ms fall slew rate and 12.5 V/ms rise slew rate. This requirement will lead to a 9.3ms T_HLDP requirement assuming power is interrupted at -43Vdc (Vth). Considering power output is 300W, Vth is 43V, C _ HLDP  2 * 300 * 9.3  1672(uF ) 722  432 Transient Over Voltage Protection The PICMG 3.0 requires the module work normally under 200V/5μS and 100V/10μS input voltage transient.
PAGE 11
THERMAL CONSIDERATIONS THERMAL CURVES Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel.
PAGE 12
MECHANICAL DRAWING Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Name Function -48V_AF -48V_BF VRTN_AF VRTN_BF ENABLE_AF ENABLE_BF SHELF_GND 72V_CAP -48V_OUT MGMT_PWR 5V BLUE LED_PWR LOGIC_GND -48V_ALARM VRTN_OUT -48V_A Feed (Externally Fused) -48V_B Feed (Externally Fused) VRTN_AF Feed (Externally Fused) VRTN_BF Feed (Externally Fused) ENABLE_AF Feed (Externally Fused) ENABLE_BF Feed (Externally Fused) Shelf / Chassis / Safety Ground Holdup/bulk capacitor output voltage (Negative Connection to -48V_OUT) OR’
PAGE 13
PART NUMBERING SYSTEM DIM 3R3 300 S Product Series Management Power Output Power Pin Length 300 - 300W S - 0.150” DIM - ATCA Input Module 3R3 - with 3.3V F A Option Code F- RoHS 6/6 (Lead Free) A - with management power (3.3V ) on Pin 10 only, no Pin 11 B - with management power (3.