profile: 12.7 (0.5 in.) High power-density: W/in.3 Output overvoltage
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FE020-Series Power Modules: dc-dc Converters; Input;
profile: 12.7 (0.5 in.) High power-density: W/in.3 Output overvoltage protection minimum load Short-circuit protection Parallel operation with load sharing Input-to-output isolation Synchronization Remote sense Remote on/off
FE020-Series Power Modules advanced surfacemount technology deliver high-quality, compact, dc-dc conversion economical price.
1950 Recognized, C22.2 950-95 Certified
Applications
Communications equipment systems Computer equipment Local power distribution Digital circuits Distributed power architectures Redundant power
registered trademark Underwriters Laboratories, Inc. registered trademark Canadian Standards Association.
Description
FE020A, Power Modules isolated, dc-dc converters that operate from nominal inputs provide Vdc, Vdc, outputs, respectively. power modules incorporate peakcurrent control circuitry power trains that combine high-efficiency power conditioning with precisely regulated output voltages. State-of-the-art packaging techniques combined with high-frequency switching technology produce lowprofile, high power-density power units. modules, which mount printed-circuit boards, 92.5 long, 48.3 wide, 12.7 high (3.6 in.). natural convection environment, devices operate with heat sink.
FE020-Series Power Modules: dc-dc Converters; Input;
Absolute Maximum Ratings
Stresses excess absolute maximum ratings cause permanent damage device. These absolute stress ratings only. Functional operation device implied these other conditions excess those given operations sections data sheet. Exposure absolute maximum ratings extended periods adversely affect device reliability. Parameter Input Voltage Isolation Voltage Operating Ambient Temperature (Natural convection; Thermal Considerations section.) Storage Temperature Symbol Unit
Tstg
Electrical Specifications
Unless otherwise indicated, specifications apply over operating input voltage, resistive load, temperature conditions. Table Input Specifications Parameter Operating Input Voltage Maximum Input Current Figure Inrush Transient Input Reflected-ripple Current, Peak-to-peak MHz, source impedance, Figure 20.) Input Ripple Rejection (120 Fusing Considerations CAUTION: This power module internally fused. input line fuse must always used. This encapsulated power module used wide variety applications, ranging from simple stand-alone operation integrated part sophisticated power architecture. preserve maximum flexibility, internal fusing included; however, achieve maximum safety system protection, always input line fuse. safety agencies require normal-blow fuse with maximum rating series with input (see Safety Considerations section). Based information provided this data sheet inrush energy maximum input current, same type fuse with lower rating used. Refer fuse manufacturer's data further information. Symbol 39.5 Unit mAp-p
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Electrical Specifications (continued)
Table Output Specifications Parameter Initial Output Voltage Point max; Output Voltage (Over operating input voltage, resistive load, temperature conditions until life.) Output Regulation: Line Load max) Temperature Figures 2-4.) Output Ripple Noise Voltage: Device Device Suffix FE020A FE020B FE020C FE020A FE020B FE020C Symbol 4.93 11.75 14.70 4.85 11.4 14.25 5.00 12.00 15.00 5.07 12.25 15.30 5.15 12.60 15.75 Unit
FE020A FE020B, FE020A FE020B FE020C FE020A FE020B FE020C FE020A FE020B FE020C
1.35
mVrms mVrms mVrms mVp-p mVp-p mVp-p
Peak-to-peak MHz)
Output Current (The FE020A Power Module provide °C.) Output Current-limit Inception: (See Figure 10.8 (See Figure 13.5 (See Figure Output Current Limit Figures 5-7.) Output Short-circuit Current Figures 5-7.) Efficiency max; Figures 8-10 21.)
FE020A FE020B FE020C FE020A FE020B FE020C FE020A FE020B, FE020A FE020B,
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Electrical Specifications (continued)
Table Output Specifications (continued) Parameter Dynamic Response (IO/t A/10 °C): Load Change from (see Figures 11-13): Peak Deviation Settling Time peak deviation) Load Change from (see Figures 14-16): Peak Deviation Settling Time peak deviation) Table Isolation Specifications Parameter Isolation Capacitance Isolation Resistance 1200 Unit Device Device Suffix Symbol Unit
FE020A FE020B,
FE020A FE020B,
General Specifications
Parameter Calculated MTBF max; °C): FE020A FE020B FE020C Weight 820,000 735,000 736,000 Unit hours hours hours (oz.)
(3.5)
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Feature Specifications
Unless otherwise indicated, specifications apply over operating input voltage, resistive load, temperature conditions. Parameter Remote On/Off open collector equivalent compatible; signal referenced VI(-) terminal; Feature Descriptions section.): Logic Low-Module Logic High-Module Module Specifications: On/Off Current-Logic On/Off Voltage: Logic Logic High (Ion/off Open Collector Switch Specifications: Leakage Current During Logic High (Von/off Output Voltage During Logic (Ion/off Turn-on Time max; within steady state.) Output Voltage Overshoot (See Figures 17-19.) Output Voltage Sense Range Output Voltage Set-point Adjustment Range Parallel Operation Load Sharing (Current deviation unit with respect average load current distributed among other units.) Output Overvoltage Protection (clamp) Device Device Suffix Symbol Unit
Ion/off Von/off Von/off Ion/off Von/off
FE020A FE020B,
0.25
FE020A FE020B FE020C FE020A FE020B,
clamp clamp clamp
4.85 0.15
Synchronization (50% duty cycle): Synchronization Voltage Required Source Current Synchronization Frequency Required Output Load Synchronization
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Characteristic Curves
OUTPUT VOLTAGE,
12.010 12.005
1200 1000
12.000 11.995 11.990 11.985 11.980 11.975
INPUT CURRENT, (mA)
INPUT VOLTAGE,
8-2945(C)
OPERATING AMBIENT TEMPERATURE, (°C)
8-2946(C)
Figure FE020-Series Typical Input Characteristic with Resistive Load max; (Arrows Indicate Hysteresis.)
Figure FE020B Typical Output Voltage Variation over Operating Ambient Temperature Range max;
15.000
14.998
OUTPUT VOLTAGE,
5.002
OUTPUT VOLTAGE,
14.996 14.994 14.992
5.000 4.998 4.996 4.994 4.992 4.990
14.990 14.988 OPERATING AMBIENT TEMPERATURE, (°C)
8-2944(C)
OPERATING AMBIENT TEMPERATURE, (°C)
8-236(C)
Figure FE020A Typical Output Voltage Variation over Operating Ambient Temperature Range max;
Figure FE020C Typical Output Voltage Variation over Operating Ambient Temperature Range max;
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Characteristic Curves (continued)
OUTPUT VOLTAGE,
OUTPUT CURRENT,
OUTPUT VOLTAGE,
OUTPUT CURRENT,
8-2940(C)
8-2941(C)
Figure FE020C Typical Output Characteristic with
Figure FE020A Typical Output Characteristic with
EFFICIENCY,
OUTPUT VOLTAGE,
OUTPUT CURRENT,
8-2942(C)
LOAD CURRENT,
8-2943(C)
Figure FE020B Typical Output Characteristic with
Figure FE020A Typical Converter Efficiency Function Output Current with
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Characteristic Curves (continued)
OUTPUT VOLTAGE, mV/div)
EFFICIENCY,
OUTPUT CURRENT, A/div)
A/µs
OUTPUT CURRENT,
8-2937(C)
Figure FE020B Typical Converter Efficiency Function Output Current with
TIME, µs/div)
8-239(C)
Figure FE020A Typical Output Voltage Waveform Step Load Change from max;
OUTPUT VOLTAGE, (100 mV/div)
EFFICIENCY,
OUTPUT CURRENT, (0.5 A/div)
0.85 A/µs
OUTPUT CURRENT,
8-2939(C)
Figure FE020C Typical Converter Efficiency Function Output Current with
TIME, µs/div)
8-2938(C)
Figure FE020B Typical Output Voltage Waveform Step Load Change from max;
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
OUTPUT VOLTAGE, (100 mV/div)
Characteristic Curves (continued)
OUTPUT VOLTAGE, (100 mV/div)
OUTPUT CURRENT, (0.5 A/div)
0.85 0.45
OUTPUT CURRENT, (0.50 A/div)
A/µs
0.66 A/µs
TIME, µs/div)
8-2935(C)
TIME, µs/div)
8-2934(C)
Figure FE020C Typical Output Voltage Waveform Step Load Change from max;
Figure FE020B Typical Output Voltage Waveform Step Load Change from max;
OUTPUT VOLTAGE, (100 mV/div)
OUTPUT VOLTAGE, mV/div)
OUTPUT CURRENT, (0.50 A/div)
0.66 0.33
OUTPUT CURRENT, A/div)
A/µs
A/µs
TIME, µs/div)
8-2936(C)
TIME, µs/div)
8-240(C)
Figure FE020C Typical Output Voltage Waveform Step Load Change from max;
Figure FE020A Typical Output Voltage Waveform Step Load Change from max;
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
OUTPUT VOLTAGE, REMOTE ON/OFF VOLTAGE, V/div) VON/OFF V/div)
OUTPUT VOLTAGE, REMOTE ON/OFF VOLTAGE, VON/OFF V/div) V/div)
Characteristic Curves (continued)
TIME, (200 µs/div)
8-2932(C)
TIME, (200 µs/div)
8-2931(C)
Figure FE020A Typical Output Voltage Start-Up Waveform Once Remote On/Off Removed max;
Figure FE020C Typical Output Voltage Start-Up Waveform Once Remote On/Off Removed max;
OUTPUT VOLTAGE, REMOTE ON/OFF VOLTAGE, V/div) VON/OFF V/div)
TIME, (200 µs/div)
8-2933(C)
Figure FE020B Typical Output Voltage Start-Up Waveform Once Remote On/Off Removed max; Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Test Configurations
OSCILLOSCOPE OSCILLOSCOPE LTEST IMPEDANCE
Design Considerations
Input Reflected Ripple
internal aluminum electrolytic input capacitor used filtering; therefore, input ripple increases temperature decreases. There approximately times more ripple than eight times more ripple than power module functions properly down with additional filtering. lower ripple needed, external capacitor across input with impedance over desired temperature range recommended.
BATTERY
8-489(C).a
Note: Input reflected-ripple current measured with simulated source impedance Capacitor offsets possible battery impedance. Current measured input module.
Safety Considerations
safety-agency approval system which power module used, power module must installed compliance with spacing separation requirements end-use safety agency standard, i.e., 1950 C22.2 950-95. input source non-SELV (ELV hazardous voltage greater than less than equal Vdc), module's output considered meeting requirements safety extra-low voltage (SELV), following must true:
Figure Input Reflected-Ripple Test Setup
SENSE VI(+) SUPPLY VI(-) CONTACT RESISTANCE VO(-) VO(+)
CONTACT DISTRIBUTION LOSSES
LOAD
8-352(C)
input source provided with reinforced insulation from other hazardous voltages, including mains. grounded, both input output pins kept floating. input pins module operator accessible. Another SELV reliability test conducted whole system, required safety agencies, combination supply source subject module verify that under single fault, hazardous voltages appear module's output.
Note: Take measurements module terminals. When socketing, place Kelvin connections module terminals avoid measurement errors socket contact resistance.
Figure Output Voltage Efficiency Measurement Test Setup
Note: ground either input pins module without grounding output pins. This allow non-SELV voltage appear between output pins ground. power module extra-low voltage (ELV) outputs when inputs ELV. input these units provided with maximum normal-blow fuse ungrounded lead.
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Data Sheet August 2000 Overcurrent Protection
provide protection fault condition, unit equipped with internal current limiting endure current limiting unlimited duration. point current-limit inception, unit shifts from voltage control current control. load resistance that results output voltage less than Vdc, some tail-out output current increase exhibited. unit operates normally once output current brought back into specified range.
Feature Descriptions
Remote On/Off
turn power module off, user must supply switch control voltage between pins switch open collector equivalent (see Figure 22). logic Von/off during which module off. maximum Ion/off during logic switch should maintain logic-low voltage while sinking During logic high, maximum Von/off generated power module maximum allowable leakage current switch Von/off
Remote Sense
Remote sense minimizes effects distribution losses regulating voltage remote-sense connections. output voltage specifications refer measurements taken remote-sense connections. voltage between remote-sense pins output terminals must exceed output voltage sense range given Feature Specifications table.
VI(+) VI(-) Von/off Ion/off CASE SENSE PARALLEL CLAMP VO(+) PARALLEL REMOTE ON/OFF VO(-)
LOAD
Synchronization
8-094(C)
Figure Remote On/Off Implementation Single Unit Operation
power module synchronized external clock applications where synchronization required. square-wave voltage capable delivering must placed between terminals Figures
Output Overvoltage Protection
output overvoltage clamp consists control circuitry, which independent primary regulation loop, that monitors voltage output terminals. control loop clamp higher voltage point than primary loop (see Feature Specifications table). This provides redundant voltage-control that reduces risk output overvoltage. voltage clamp must connected positive side power bus.
VI(+) VI(-) SENSE PARALLEL CLAMP VO(+) PARALLEL VO(-) REMOTE ON/OFF SYNC CASE
8-096(C)
Figure Connection Diagram Synchronization
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Feature Descriptions (continued)
VI(+)
Synchronization (continued)
DUTY CYCLE FREQUENCY AMPLITUDE
SENSE PARALLEL CLAMP VO(+) PARALLEL REMOTE ON/OFF VO(-) VI(-) CASE
LOAD
VI(+) SENSE CLAMP VO(+) PARALLEL REMOTE ON/OFF VO(-) VI(-) PARALLEL CASE
8-097(C)
Figure Synchronization Waveform
8-095(C)
Parallel Operation
either redundant operation additional power requirements, power modules configured parallel operation with forced load-sharing (see Figure 25). typical redundant configuration, Schottky diodes equivalent should used protect against short-circuit conditions. Because remote sense, forward-voltage drops across Schottky diodes affect point voltage applied load. additional power requirements, where multiple units used develop combined power excess rated maximum, Schottky diodes needed. implement forced load-sharing, following connections must made, good layout techniques should observed noise immunity:
Figure Wiring Configuration Redundant Parallel Operation
Thermal Considerations
Figure shows output derating curves units mounted vertically boards spaced apart with natural convection, ms-1 (100 ft./min.), ms-1 (200 ft./min.) forced-air conditions. velocity measured above unit center channel formed unit adjacent board (see Figure 27). ensure proper operation other environments, user must allow case temperature exceed Refer Figure location case temperature measurements.
parallel pins units must connected together. paths these connections should direct possible. remote-sense pins should connected power same point; i.e., connect remotesense pins side power same point remote-sense pins side power same point. Close proximity directness necessary good noise immunity.
Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Thermal Considerations (continued)
THERMOCOUPLE POSITION THERMOCOUPLE POSITION (CASE TEMPERATURE) (CASE TEMPERATURE)
Lucent
FE020A DC-DC Power Module
IN:DC 48V, 0.53A MADE OUT:DC
Rheinland
OUTPUT POWER (200 ft./min.) AIRFLOW NATURAL CONVECTION MEASURED ABOVE MODULE NATURAL CONVECTION (100 ft./min.)
CASE
8-608(C).a
Figure Thermocouple Location
AMBIENT TEMPERATURE MEASURED BELOW MODULE (°C)
8-606(C)
Figure Thermal Derating Curves FE020A Power Module
(0.20)
(0.25) MOTHERBOARD
POSITION VELOCITY PROBE
19.1 (0.75)
THERMOCOUPLE POSITION (AMBIENT TEMPERATURE)
12.7 (0.50) OUTPUT PINS AIRFLOW INPUT PINS
19.1 (0.75) THERMOCOUPLE POSITION (AMBIENT TEMPERATURE)
8-2947(C)
(0.25) 19.1 (0.75) BOARD SPACING
Note: Dimensions millimeters (inches).
Figure Power Module Orientation Test Chamber Tyco Electronics Corp.
FE020-Series Power Modules: dc-dc Converters; Input;
Outline Diagram
Dimensions millimeters (inches). Copper paths must routed beneath power module standoffs. Tolerances: (0.03 in.); x.xx 0.38 (0.015 in.). View
92.5 (3.64)
Lucent
FE020A DC-DC Power Module
IN:DC 48V, 0.53A MADE OUT:DC
48.3 (1.90)
CASE
Rheinland
(0.050)
Side View
12.70 (0.500) (0.11) MAX, PLCS
1.02 (0.040)
(0.28) CASE (0.25)
PLCS
(0.29) (0.23)
Bottom View
0.76 (0.030) 1.09 (0.043) CASE 35.56 34.54 (1.400) (1.360) 36.1 (1.42) 0.79 (0.031) 0.05 (0.002) TIN-PLATED BRASS, PLCS
23.37 10.16 (0.920) 28.46 18.29 (0.400) (1.120) (0.720)
21.60 16.50 (0.850) (0.650) 11.43 (0.450) (0.12) 76.20 (3.000) 81.28 (3.200)
8-2948(C)
5.08 (0.200)
Tyco Electronics Corp.
Function VI(+) VI(-) PARALLEL PARALLEL REMOTE ON/OFF SYNCHRONIZATION
Function CLAMP VO(+) VO(-) REMOTE SENSE VO(+) VO(-)
FE020-Series Power Modules: dc-dc Converters; Input;
Recommended Hole Pattern
Component-side footprint. Dimensions millimeters (inches).
81.28 (3.200) 76.20 (3.000) (0.12) 5.08 (0.200) 11.43 (0.450) 16.50 (0.650) 21.60 (0.850)
36.1 (1.42)
28.46 18.29 (1.120) (0.720) 10.16 35.56 23.37 (0.400) (0.920) 34.54
(1.400) (1.360)
8-2948(C)
Ordering Information
Input Voltage Output Voltage Output Power Device Code FE020A FE020B FE020C Comcode 105558233 Discontinued Discontinued
Tyco Electronics Power Systems, Inc. 3000 Skyline Drive, Mesquite, 75149, +1-800-526-7819 FAX: +1-888-315-5182 (Outside U.S.A.: +1-972-284-2626, FAX: +1-972-284-2900)
Tyco Electronics Corporation reserves right make changes product(s) information contained herein without notice. liability assumed result their application. rights under patent accompany sale such product(s) information. 2001 Tyco Electronics Corporation, Harrisburg, International Rights Reserved. Printed U.S.A.
August 2000 DS98-309EPS (Replaces DS91-099EPS)
Printed Recycled Paper
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