RDK-249 Power Integrations, RDK-249 Datasheet - Page 40

• Manufacturer Part Number: RDK-249
• Description: KIT REF DESIGN PFS762HG
• Manufacturer: Power Integrations
• Series: HiperTFS®r

Specifications of RDK-249

• Main Purpose: Reference Design, PC Power Supply
• Embedded: No
• Utilized Ic / Part: TFS762HG
• Primary Attributes: 12V 25A, 5V 2.9A Outputs, 300 ~ 385 VDC Input
• Output Voltage: 5 V
• Input / Supply Voltage (max): 385 VDC
• Input / Supply Voltage (min): 300 VDC
• Duty Cycle (max): 50 %
• Mounting Style: Through Hole
• Output Current: 2.9 A
• Output Power: 14.5 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Other names: 596-1398

13.7 Full Power Hold-Up Time
After turning OFF the input voltage, the full output power Hold-Up Time from 385 VDC
down to 300 VDC is 20.8 ms. Maximum Hold-Up time (before 12 V Main output losing
regulation, starting from 385 VDC input) is 22.3 ms.
13.8 Standby Auto-Restart
Overloading the standby output with 6 A for 380 VDC input shows repeated restart
attempts every 2.3 s followed by a quick shutdown.
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
Figure 35 – Maximum Hold-Up Time = 22.3 ms
Figure 34 – Maximum Hold-Up Time = 22.3 ms
Upper: Standby V
Lower: Standby I
Upper (yellow): V
Upper (red): V
Lower: Input VDC, 60 V, 5 ms / div.
STBY
DRAIN
MAIN
DRAIN
, 1 V / div.
, 2 V / div.
, 100 mA, 1 s / div.
, 100 V / div.
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