pxb15-48ws15 TDK Corp., pxb15-48ws15 Datasheet - Page 24

• Manufacturer Part Number: pxb15-48ws15
• Description: Single Output 15 Watt Dc/dc Converters
• Manufacturer: TDK Corp.

Data Sheet
Mar. 23, 2009
PXB15-xxWSxx
affect the stability of the power module. The addition of an external C-L-C filter is recommended to minimize input
reflected ripple current. The inductor is simulated source impedance of 12μH and capacitor is Nippon chemi-con KZE
series 10μF/100V&10μF/100V. The capacitor must be located as close as possible to the input terminals of the power
module for lower impedance.
overload current is maintained at approximately 150 percent of rated current for PXB15W single output series.
damaged during an over-current fault condition. It also allows the power supply to restart when the fault is removed.
MOSFET and Schottky diodes and the temperature of those devices may exceed their specified limits. A protection
mechanism has to be used to prevent those power devices from being damaged.
the voltage on the output terminals exceeds the over-voltage protection threshold, then the Zener diode will send a
signal to the control IC to limit the output voltage.
This Common Choke L1 is defined as follow:
When excessive output currents occur in the system, circuit protection is required on all power supplies. Normally,
Hiccup-mode is a method of operation in a power supply whose purpose is to protect the power supply from being
One of the problems resulting from over current is that excessive heat may be generated in power devices; especially
The output over-voltage protection consists of a Zener diode that monitors the output voltage on the feedback loop. If
The power module should be connected to a low impedance input source. Highly inductive source impedance can
■
■
■
■
All dimensions in millimeters
L: 325μH±35% / DCR: 35Ω, max
A height: 8.8 mm, Max
Test condition: 100KHz / 100mV
Recommended through hole: Φ0.8mm
Output Over Voltage Protection
Output Over Current Protection
EMC considerations (Continued)
Input Source Impedance
15W, Single Output
24