Q54SG Datasheet, PDF (3/26 Pages) Delta Electronics, Inc. – Industry standard, DOSA compliant pin out

TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=54Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
PMBus Signal Interface Characteristics
Logic Input Low (VIL)
C2, Data, SMBAlert, Clock pin
Logic Input High (VIH)
C2, Data, SMBAlert, Clock pin
Logic Onput Low (VOL)
C2, Data, SMBAlert, Clock pin; IOL=6mA
Logic Onput High (VOH)
C2, Data, SMBAlert, Clock pin; IOH=-6mA
PMBus Operating Frequency Range
PMBus Monitoring CHARACTERISTICS
Output Current Reading Accuracy
Io=50% ~ 100% of Io, max;
Io=5% ~ 50% of Io, max;
Output Voltage Reading Accuracy
Input Voltage Reading Accuracy
Temperature Reading Accuracy
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; 300LFM; Ta=25°C
Weight
Over-Temperature Shutdown (With heat spreader)
Refer to Figure 19 for Hot spot 1 location
(54Vin,80% Io, 200LFM,Airflow from Vin- to Vin+)
Over-Temperature Shutdown (With 0.5” height heat sink)
Refer to Figure 22 for Hot spot 2 location
(54Vin,80% Io, 200LFM,Airflow from Vin- to Vin+)
Over-Temperature Shutdown ( NTC resistor )
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.
Q54SG12050
Min.
Typ.
Max.
Units
0
0.8
V
2.1
3.3
V
0.4
V
2.6
V
100
400
KHz
-5
+5
%
-2
+2
A
-2
+2
%
-4
+4
%
-5
+5
℃
1.56
M hours
66.5
grams
112
°C
103
°C
125
°C
PIN DEFINATION
Pin#
Name Function
Pin# Name Function
1
VIN(+)
7 C2
Secondary on/off control pin; The default configuration is set to ignore this input. And such pin can be
reconfigured by the PMBus Interface.
2
ON/OFF Primary on/off control pin
8 Sig_Gnd Signal ground
3
VIN(-)
9 Data
PMBus data line
4
VOUT(-)
10 SMBAlert PMBus SMBAlert line
5
Trim Trim pin
11 Clock PMBus clock line
6
VOUT(+)
12 Addr1 ADDR1 pin sets the high order digit of the address.
13 Addr0 ADDR0 pin sets the low order digit of the address.
SIMPLIFIED APPLICATION CIRCUIT
Input
Source
Fuse
Reverse
polarity
Protection
EMI filter
On/off control
Delta DC/DC
Module
Vin(+)
On/off
Addr0 Addr1
Vout(+)
Trim
Vin(-)
Vout(-)
SMB
CLOCK DATA -ALERT C2
Load
CLK DATA ALERT CTRL
System MCU
3
DS_Q54SG12050_09092016