OFFLINE GATE DRIVE
TRANSFORMERS
UL and C-UL recognized, TÜV approved components
3000Vrms gate to drive winding test
Useful operating frequency from 50kHz to 500kHz
Most popular winding configurations
Mechanical Schematics
Electrical Specifications @ 25°C — Operating Temperature -40°C to 130°C
Reference Data Primary Leakage
Part 4Turns Inductance Inductance DCR Drive DCR Gates Drive
Number Ratio ET Maximum (1-10) Gate to Drive (1-10) (mΩ ±20%)Pri-Sec
(V * µsec MAX) Flux Density (µH MIN) (µH MAX) (mΩ ±20%) (Vrms)
P0584 1:1:1 95.0 2100 450 0.5 80 72 3000
P0585 1:1:1:1:1 95.0 2100 450 3.0 330 180 3000
1. These gate drive transformers are meant to operate between 50 and 300kHz with
a 12V, 45% bipolar waveform.
2. The peak flux density should remain below 2100 Gauss to ensure that the core
does not saturate. Use the following procedure to calculate the peak flux density:
A. Calculate the Volt-µsec product (ET):
ET = 103* (Drive Voltage) * (Don) / (Frequency in kHz)
B. Calculate the operating flux density (B): Bpk (Gauss) = 40.32 * ET/Ff where:
Ff = 1 for unipolar drive applications and 2 for bipolar drive applications
3. The temperature rise of the component is calculated based on the total core loss
and copper loss:
A. To calculate total copper loss (W), use the following formula:
Copper Loss (W) = Irms2 * (DCR_Drive + (# of Gates) * DCR_Gates)
B. To calculate total core loss (W), use the following formula:
Core Loss (W) = 7.5E-5 * (Frequency in kHz)1.67 * (20.16 * ET/1000)2.532
C. To calculate temperature rise, use the following formula:
Temperature Rise (C) = 60.18 * (Core Loss(W) + Copper Loss (W)).833
4. To order RoHS compliant part, add the suffix "NL" to the part number
(i.e. P0584 becomes P0584NL).
NOTES:
Weight . . . . . . . . . . . . . . . .5 grams
Tray . . . . . . . . . . . . . . . . . . .20/tray
Dimensions: Inches
mm
Unless otherwise specified,
all tolerances are ± .010
0,25
P0584 P0585
www.pulseeng.com
P515.B (3/06)
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