PKM4510EPIHSLA Ericsson Power Modules, PKM4510EPIHSLA Datasheet - Page 13

• Manufacturer Part Number: PKM4510EPIHSLA
• Description: DC/DC CONVERTERS
• Manufacturer: Ericsson Power Modules

Specifications of PKM4510EPIHSLA

• Package: 8Quarter-Brick

Start-Up
PKM 1HE PI Typical Characteristics
Output Ripple
PKM 4000E PI Datasheet
Output Voltage Adjust
The resistor value for an adjusted output voltage is
calculated by using the following equations:
Output Voltage Adjust Upwards, Increase:
R
Output Voltage Adjust Downwards, Decrease:
R
Eg Increase 4% =>V
5 .11 [1 .5(100+4)/(1 .225x4)-(100+2x4)/4]=24 .7 kOhm
Eg Decrease 2% =>V
5 .11 x(100/2-2)=245 .3 kOhm
adj
adj
= 5 .11 [1 .5(100+Δ%) / 1 .225Δ%- (100+2Δ%) /Δ% ] kOhm
= 5 .11 [(100 / Δ%-2) ] kOhm
Output voltage ripple (50mV/div .) at T
Io=20A resistive load with C=10 µF tantalum and 0 .1 µF
ceramic capacitors . Band width=20MHz . Time scale: 2µs / div .
Start-up at Io=20A resistive load at T
Vin=53 V . Start enabled by connecting Vin . Top trace:
input voltage (10 V/div .) . Bottom trace: output voltage
(0 .5 V/div .) . Time scale: 5 ms/div .
out
out
= 1 .56 V
= 1 .47 V
dc
dc
Pcb
=+25 °C, Vin=53 V,
Pcb
=+25 °C,
1
Transient
Output Voltage Adjust
Turn-Off
Output voltage response to load current step-change
(5-15-5 A) at T
voltage (100mV/div .) . Bottom trace:
load current (5 A/div .) Time scale: 0 .1 ms/div .
Turn-off at Io=10A resistive load at T
Vin=53 V . Turn-off enabled by disconnecting Vin .
Output voltage (0 .5 V/div .) . Time scale: 20 µs/div .
Output voltage adjust resistor value vs .
percentage change in output voltage .
EN/LZT 146 051 R7A © Ericsson Power Modules, February 2007
Pcb
=+25 °C, Vin=53 V . Top trace: output
Pcb
=+25 °C,