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EZ-GaN
EZ-GaN Evaluation Board, Totem-Pole PFC
Complete 1000 W Totem-Pole PFC
Evaluation Board with HV GaN HEMTs
and 99% Peak Efficiency
The introduction of Transphorm’s 600V GaN power transistors allows unconventional circuits previously impractical to implement.
The simultaneously low on-resistance and low reverse recovery
charge from these 1st-generation GaN-on-Si high electron mobilty transistors (HEMTs) offer a new keystone in building a longawaited totem-pole power factor correction (PFC) circuit.
In addition to excellent potential for low common-mode EMI
noises, this elegant GaN-based PFC features the least number of
fast power devices and offers the least resistance paths for the
main current, enabling a prototype to achieve 99% efficiency.
Q2
(a)
S2
VO+
LB
Vs
A GaN HEMT totem pole PFC in CCM mode consists of a pair of
fast GaN HEMTs (Q1 and Q2) operating at a high pulse-widthmodulation (PWM) frequency, as well as a pair of slow but verylow resistance MOSFETs (S1 and S2) operating at 60Hz.
N
VIN
(b)
Q1
S1
Q2
S2
VOVO+
. Option of Quiet-Tab packages for lower EMI design
L
. Extremely
efficient design with >99% peak efficiency
+
Vs
. Simple and elegant
bridgeless PFC topology
N
TM
B
-­‐
VIN
Transphorm Inc. is redefining energy efficiency with the most efficient and compact power conversion technology. Contact us at 1-805-456-1300 or online www.transphormusa.com
Copyright © 2014
Q1
S1
VO-
EZ-GaN
TDPS500E2C1-KIT - Complete Totem-Pole PFC Eval Board
115V:390V, 50kHz
35
98
35
98.5
30
97.5
30
98
25
Eff
97.5
20
Loss
97
15
96.5
10
96
95.5
0
200
400
600
POUT (W)
800
Eff. (%)
99
Loss (W)
98.5
Eff. (%)
40
97
40
25
Eff
96.5
20
Loss
96
15
95.5
5
95
0
1000
94.5
Loss (W)
230V:390V, 50kHz
99.5
10
5
0
0
100
200
300
POUT (W)
400
500
Performance of the GaN-based Totem Pole PFC with synchronous rectification showing >99% at Vin=230
Vrms and >98% at Vin=115 Vrms (GaN HEMTs: TPH3006PS x2 or TPH3006LS & TPH3006LD).
Parts Available
Description
Minimum "
Order
Delivery
TDPS500E2C1-KIT
Totem-Pole PFC Evaluation Board Kit
1
Stock to 12 weeks
TPH3002PS
600 V / 0.29 Ω GaN HEMT, TO-220
20
Stock to 12 weeks
TPH3002PD
600 V / 0.29 Ω GaN HEMT, TO-220
20
Stock to 12 weeks
TPH3002LS
600 V / 0.29 Ω GaN HEMT, PQFN88
20
Stock to 12 weeks
TPH3002LD
600 V / 0.29 Ω GaN HEMT, PQFN88
20
Stock to 12 weeks
TPH3006PS
600 V / 0.15 Ω GaN HEMT, TO-220
10
Stock to 12 weeks
TPH3006PD
600 V / 0.15 Ω GaN HEMT, TO-220
10
Stock to 12 weeks
TPH3006LS
600 V / 0.15 Ω GaN HEMT, PQFN88
10
Stock to 12 weeks
TPH3006LD
600 V / 0.15 Ω GaN HEMT, PQFN88
10
Stock to 12 weeks
Transphorm Inc. is redefining energy efficiency with the most efficient and compact power conversion technology. Contact us at 1-805-456-1300 or online www.transphormusa.com
Copyright © 2014
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