Q48SC12025 Datasheet, PDF (3/28 Pages) Delta Electronics, Inc. – 300W DC/DC Power Modules

TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=400 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
Q48SC12025
Min.
Typ.
Max.
Units
FEATURE CHARACTERISTICS
Switching Frequency
130
KHz
ON/OFF Control, Remote On/Off logic
Default Negative logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
-0.7
0.8
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
3.5
50
V
ON/OFF Current (for both remote on/off logic)
Ion/off at Von/off=0.0V
0.5
mA
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io max; Ta=25°C; Airflow=300LFM
4.5
M
Weight(without heat spreader)
50
grams
Weight(with heat spreader)
65
grams
Over-Temperature Shutdown ( Without heat spreader)
Refer to Figure 22 for Hot spot 1 location
(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)
126
°C
Over-Temperature Shutdown (With heat spreader)
Refer to Figure 24 for Hot spot 2 location
(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)
114
°C
Over-Temperature Shutdown ( NTC resistor )
Refer to Figure 22 for NTC resistor location
125
°C
Note1: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference. And the OTP is Adjustable via PMBus.
Note2: Output voltage range 5.8% for remote sense-; Output voltage range 10% for remote sense+.
DIGITAL INTERFACE SPECIFICATIONS
(TA=25°C, airflow rate=400 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
PMBUS SIGNAL INTERFACE CHARACTERISTICS
Input High Voltage (CLK, DATA)
Input Low Voltage (CLK, DATA)
Input high level current (CLK, DATA)
Input low level current (CLK, DATA)
Output Low Voltage (SMBALERT#)
Output high level open drain leakage current
(SMBALERT#)
PMBus Operating frequency range
Measurement System Characteristics
Output current reading accuracy
VOUT reading accuracy
VIN reading accuracy
Temperature sense range
Temperature reading accuracy
SMBALERT, sink current 2mA
SMBALERT, 3.6V
12.5A<IOUT<25A
1A<IOUT<12.5A
Q48SC12025
Min.
Typ.
Max.
2.1
3.3
0
0.8
-10
10
-10
10
0.4
0
10
100 or 400
Units
Vdc
Vdc
uA
uA
Vdc
uA
kHz
-5
1.4
3
%
-1.7
2.5
A
1
%
-2
+2
Vdc
0
°C
-5
+5
°C
PIN DEFINATION
Pin#
Name
1
VIN(+)
2
ON/OFF
3
Case
4
VIN(-)
5
VOUT(-)
6
SENSE(-)
7
TRIM
8
SENSE(+)
Note3: see the last page.
Function
Pin#
Name
Function
9
Primary on/off
control pin
10
11
12
13
Remote sense 14
Trim ^{note 3}
15
Remote sense 16
VOUT(+)
C2
PGOOD pin, and this pin also could be configurated as secondary on/off control pin
SIG_GND Signal ground
DATA
PMBus data line
SMBALERT PMBus SMBAlert line
CLOCK
ADDR1
ADDR0
PMBus clock line
ADDR1 pin sets the high order digit of the address.
ADDR0 pin sets the low order digit of the address.
Datasheet
DS_Q48SC12025_04062017
E-mail: [e-mail]
http://www.deltaww.com/dcdc
P3