DPA423GN Power Integrations, DPA423GN Datasheet - Page 3

• Manufacturer Part Number: DPA423GN
• Description: IC CONV DC-DC DPA SWITCH 8SMD
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DPA423GN

• Applications: Converter, Power Over Ethernet and Telecom Applications
• Voltage - Input: 16 ~ 75 V
• Number Of Outputs: 1
• Voltage - Output: 220V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SMD Gull Wing
• Output Voltage: 9 V
• Output Current: 1.75 A
• Input Voltage: - 0.3 V to + 220 V
• Switching Frequency: 282 KHz to 425 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 79 %
• For Use With: 596-1195 - KIT REF DES DPA 6.6W DC-DC CONV596-1009 - KIT DESIGN ACCELERATOR DC-DC596-1007 - KIT DESIGN ACCELERATOR POE CONV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. Methods for Generation of Bias Voltage.
Output Rectifiers
Output rectification may be accomplished with discrete Schottky
diodes for lowest cost or synchronous rectifiers for highest
efficiency. This document discusses synchronous rectification
+
+
D
S
CONTROL
CONTROL
D
S
X
L
CONTROL
CONTROL
F
Output Coupled Inductor Bias
DPA-Switch
X
C
L
DC Input Derived
F
DPA-Switch
C
(a)
(c)
U2
PI-3468-042303
U2
PI-3470-042303
+
+
in greater detail in a separate section. Ultra-fast PN junction
diodes are not suitable at DPA-Switch operating frequencies.
D
S
D
S
CONTROL
CONTROL
CONTROL
CONTROL
X
X
L
L
Transformer Bias (unregulated)
F
DPA-Switch
F
C
DPA-Switch
C
Transformer Bias (regulated)
(b)
(d)
AN-31
PI-3469-042303
PI-3471-042303
U2
7/04
C
U2
3