ICE3A1065L Infineon Technologies, ICE3A1065L Datasheet - Page 25

• Manufacturer Part Number: ICE3A1065L
• Description: IC OFFLINE CTRLR SMPS CM 8DIP
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r

Specifications of ICE3A1065L

• Output Isolation: Isolated
• Frequency Range: 92 ~ 108kHz
• Voltage - Input: 8.5 ~ 22 V
• Voltage - Output: 650V
• Power (watts): 32W
• Operating Temperature: -25°C ~ 130°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ICE3A1065LX; ICE3A1065LXK; SP000098668

8
Figure 28 Schematic for recommended PCB layout
General guideline for PCB layout design using F3 CoolSET (refer to Figure 28):
1. “Star Ground “at bulk capacitor ground, C11:
Guideline for PCB layout design when >3KV lightning surge test applied (refer to Figure 28):
1. Add spark gap
Version 2.0
2. High voltage traces clearance:
3. Filter capacitor close to the controller ground:
a. Spark Gap 3 and Spark Gap 4, input common mode choke, L1:
a. 400V traces (positive rail of bulk capacitor C11) to nearby trace: > 2.0mm
b. 600V traces (drain voltage of CoolSET IC11) to nearby trace: > 2.5mm
a. DC ground of the primary auxiliary winding in power transformer, TR1, and ground of C16 and Z11.
b. DC ground of the current sense resistor, R12
c. DC ground of the CoolSET device, GND pin of IC11; the signal grounds from C13, C14, C15 and collector of
d. DC ground from bridge rectifier, BR1
e. DC ground from the bridging Y-capacitor, C4
High voltage traces should keep enough spacing to the nearby traces. Otherwise, arcing would incur.
Spark gap is a pair of saw-tooth like copper plate facing each other which can discharge the accumulated
Gap separation is around 1.5mm (no safety concern)
Spark Gap 1
charge during surge test through the sharp point of the saw-tooth plate.
Spark Gap 2
Filter capacitors, C13, C14 and C15 should be placed as close to the controller ground and the controller pin
as possible so as to reduce the switching noise coupled into the controller.
“Star Ground “means all primary DC grounds should be connected to the ground of bulk capacitor C11
separately in one point. It can reduce the switching noise going into the sensitive pins of the CoolSET device
effectively. The primary DC grounds include the followings.
IC12 should be connected to the GND pin of IC11 and then “star “connect to the bulk capacitor ground.
GND
L
N
Schematic for recommended PCB layout
FUSE1
Y-CAP
C2
X-CAP
C1
C3
Y-CAP
Spark Gap 4
Spark Gap 3
F3 CoolSET schematic for recommended PCB layout
L1
C4
Y-CAP
BR1
C11
R12
C13
bulk cap
*
SOFTS/BL
GND
D11
CS
C14
IC11
CoolSET
F3
FB
25
Schematic for recommended PCB layout
C15
DRAIN
VCC
NC
R11
R13
Z11
R14
D11
C16
D13
C12
TR1
IC12
D21
R23
CoolSET™-F3
C21
R22
C23
IC21
ICE3xxx65L
C22
R25
R21
R24
8 May 2006
GND
Vo