PQ60120QZB33 Datasheet, PDF (4/13 Pages) SynQor Worldwide Headquarters – Protection from permanent damage and hazardous conditions

Electrical Characteristics (continued)
Input:35-75V
Output:12V
Current:33A
Part No.:PQ60120QZB33
PQ60120QZB33 Electrical Characteristics (continued)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 48V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min. Typ. Max. Units Notes & Conditions
DYNAMIC CHARACTERISTICS
Output Voltage during Load Current Transient
Step Change in Output Current (0.1A/µs)
250
mV 50% to 75% to 50% Iout max, 470 μF load cap
Step Change in Output Current (5A/µs)
250
mV
Settling time
2
ms To within 1% Vout nom
Turn-On Transient
Turn-On Time
24
27
30
ms Full load, Vout=90% nom; Figures 4 & 5
Output Voltage Overshoot
2
%
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
2250
V See Absolute Maximum Ratings
Isolation Resistance
30
MΩ
Isolation Capacitance (input to output)
1000
pF See Note 4
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
°C Package rated to 150°C
Board Temperature
125
°C UL rated max operating temp 130°C
Transformer Temperature
125
°C
FEATURE CHARACTERISTICS
Switching Frequency Regulation Stage
235.6
238.0
240.4
kHz
Switching Frequency Isolation Stage
117.8
119.0
120.2
kHz
ON/OFF Control (Option P)
Off-State Voltage
-2.0
1.0
V
On-State Voltage
4.0
18.0
ON/OFF Control (Option N)
Off-State Voltage
4.0
18.0
V
On-State Voltage
-2.0
1.0
ON/OFF Control (Either Option)
Application notes; Figure A
ON/OFF Control Hysteresis
1.5
°C
Pull-Up Voltage
4.75
5.00
5.25
V
Pull-Up Resistance
10
kΩ
Output Voltage Trim Range
-50
5
% Measured across Pins 8 & 4; Figure B
Output Over-Voltage Protection
113
118
123
% Over Full Temperature Range; % of nominial Vout
Over-Temperature Shutdown
120
°C Average PCB Temperature
Over-Temperature Shutdown Restart Hysteresis
10
°C
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
2.7
10⁶ Hrs. TR-NWT-000332; 80% load, 300LFM, 40°C Ta
Calculated MTBF (MIL-217)
2.5
10⁶ Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40°C Ta
Field Demonstrated MTBF
10⁶ Hrs. See our website for details
Note 1: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.
Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [e-mail])
Note 3: If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup
mode, with a 500ms off-time.
Note 4: Higher values of isolation capacitance can be added external to the module.
Product # PQ60120QZB33
Phone [phone]
www.synqor.com
Doc.# 005-0005586 Rev. G
02/04/15
Page 4