Q36SR12020
th
240W 1/4 Brick DC/DC Power Modules
FEATURES
Electrical
High efficiency: 93% @ 12V/20A
Industry standard footprint and pin-out
Fixed frequency operation
OTP, Input UVLO, Output OVP
Output OCP Hiccup mode
Output voltage trim range: -10%~+10%
Monotonic startup into normal and pre-biased
loads
2250V isolation and basic insulation
No minimum load required
No negative current during power or enable
on/off
Mechanical
Size:
w/o heat-spreader
58.4x36.8x11.7mm (2.30x1.45x0.46)
with heat-spreader
58.4x36.8x12.7mm (2.30x1.45x0.50)
Soldering Methods
Q36SR12020
Wave soldering
Quarter Brick DC/DC Power Module Hand soldering
18~75V in, 12V/20A out, 240W
Safety & Reliability
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS18001 certified manufacturing
Q36SR12020, Quarter Brick, 18V~75Vin input, single output, isolated
facility
DC/DC converters, are the latest offering from a world leader in power UL/cUL 60950-1 (US & Canada)
systems technology and manufacturing Delta Electronics, Inc. With
creative design technology and optimization of component placement,
OPTIONS
these converters possess outstanding electrical and thermal
performance, as well as extremely high reliability under highly stressful
Negative or positive logic remote On/Off
operating conditions. Typical efficiency of the 12V/20A module is greater
Through hole with heat-spreader
than 93%.
APPLICATIONS
Optical Transport
Data Networking
Communications
Servers
Datasheet E-mail: dcdc@deltaww.com
DS_Q36SR12020_06042019 TECHNICAL SPECIFICATIONS
(TA=25C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER NOTES and CONDITIONS Q36SR12020
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage Vdc
Continuous 0 80 Vdc
Transient (100ms) 100ms 100 Vdc
Operating Ambient Temperature -40 85 C
Storage Temperature -55 125 C
Input/Output Isolation Voltage 2250 Vdc
INPUT CHARACTERISTICS
Operating Input Voltage 18 48 75 Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold 16 17 18 Vdc
Turn-Off Voltage Threshold 15 16 17 Vdc
Lockout Hysteresis Voltage 0.3 1 1.8 Vdc
Maximum Input Current 100% Load, 18Vin 17.2 A
No-Load Input Current Vin=48V,Io=0A 100 mA
Off Converter Input Current Vin=48V 10 mA
Inrush Current (I2t) 1 A2s
Input Reflected-Ripple Current P-P thru 12H inductor, 5Hz to 20MHz 20 mA
Input Voltage Ripple Rejection 120 Hz 50 dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25C 11.82 12.00 12.18 Vdc
Output Voltage Regulation
Load Regulation Io=Io, min to Io, max 3 15 mV
Line Regulation Vin=18V to 75V 3 15 mV
Temperature Regulation Tc=-40C to 110C 120 mV
Total Output Voltage Range Over sample load, line and temperature 11.64 12.00 12.36 V
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 1F ceramic, 10F tantalum 100 mV
RMS Full Load, 1F ceramic, 10F tantalum 25 mV
Operating Output Current Range Vin=18V to75V 0 20 A
Operating Output Current Range
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient Vin=48V, 10F Tan & 1F Ceramic load cap, 0.1A/s
Positive Step Change in Output Current 75% Io.max to 50% Io.max 550 mV
Negative Step Change in Output Current 50% Io.max to 75% Io.max 550 mV
Settling Time (within 1% Vout nominal) 200 s
Turn-On Transient
Start-Up Time, From On/Off Control 35 mS
Start-Up Time, From Input 35 mS
Output Capacitance (note1) Full load; 5% overshoot of Vout at startup 0 5000 F
EFFICIENCY
100% Load Vin=24V 93.5 %
100% Load Vin=48V 93.0 %
60% Load Vin=48V 92.0 %
ISOLATION CHARACTERISTICS
Input to Output 2250 Vdc
Isolation Resistance 10 M
Isolation Capacitance 1000 pF
FEATURE CHARACTERISTICS
Switching Frequency 260 KHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On) Von/off 0.8 V
Logic High (Module Off) Von/off 2.4 5 V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off) Von/off 0.8 V
Logic High (Module On) Von/off 2.4 5 V
ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 1 mA
Leakage Current (for both remote on/off logic) Logic High, Von/off=5V
Output Voltage Trim Range(note 2) Pout max rated power, Io Io.max -10 10 %
Output Voltage Remote Sense Range 10 %
Pout max rated power, Io Io.max
Output Over-Voltage Protection Over full temp range; % of nominal Vout 115 140 %
GENERAL SPECIFICATIONS
MTBF Io=80% of Io, max; Ta=25C, normal input,600FLM 3.0 M hours
Weight Without heat spreader 45.5 grams
Weight With heat spreader 61.1 grams
Over-Temperature Shutdown (Without heat Refer to Figure 19 for Hot spot 1 location (48Vin,80%
135 C
spreader) Io, 200LFM,Airflow from Vin+ to Vin-)
Over-Temperature Shutdown (With heat spreader) Refer to Figure 22 for Hot spot 2 location (48Vin,80% Io,
120 C
200LFM,Airflow from Vin+ to Vin-)
Over-Temperature Shutdown (NTC resistor) Refer to Figure 19 for NTC resistor location 130 C
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots temperature is just for reference.
Note1: For applications with higher output capacitive load, please contact Delta.
Note2: Trim down range -10% for 18Vin ~75Vin, Trim up range +10% for 20Vin ~ 75Vin.
Datasheet E-mail: dcdc@deltaww.com
DS_Q36SR12020_06042019