LTC4352CDD#TRPBF Linear Technology, LTC4352CDD#TRPBF Datasheet - Page 12

• Manufacturer Part Number: LTC4352CDD#TRPBF
• Description: IC IDEAL DIODE CNTRL 12-DFN
• Manufacturer: Linear Technology

Specifications of LTC4352CDD#TRPBF

• Applications: Redundant Power Supplies, Telecom Infrastructure
• Fet Type: N-Channel
• Number Of Outputs: 1
• Internal Switch(s): No
• Delay Time - On: 250ns
• Delay Time - Off: 200ns
• Voltage - Supply: 2.9 V ~ 18 V
• Current - Supply: 1.4mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 12-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

applicaTions inForMaTion
LEDs, D1 and D2, require around 3mA for good luminous
intensity. Accounting for a 2V diode drop and 0.5V V
R1 and R2 are set to 2.7k.
PCB Layout Considerations
Connect the V
to the MOSFET’s terminals. Keep the traces to the MOSFET
wide and short to minimize resistive losses. The PCB traces
LTC4352
12
IN
and OUT pin traces as close as possible
FROM INPUT
SUPPLY
TRACK WIDTH W:
0.03˝ PER AMPERE
ON 1OZ CU FOIL
Figure 8. Recommended PCB Layout for Power MOSFET
CURRENT FLOW
W
S
S
S
G
DRAWING IS NOT TO SCALE!
C1
OL
,
SO-8
LTC4352
Q1
associated with the power path through the MOSFET should
have low resistance. See Figure 8.
It is also important to put C1, the bypass capacitor for the
V
place C2 near the CPO and SOURCE pins. Surge suppres-
sors, when used, should be mounted close to the LTC4352
using short lead lengths.
CC
VIA TO GROUND PLANE
pin, as close as possible between V
D
D
D
D
MSOP-12
CURRENT FLOW
VIA TO GROUND PLANE
W
TO LOAD
4352 F08
CC
and GND. Also
4352fa