Synchronous Rectifier. LP3515 Datasheet

LP3515 Rectifier. Datasheet pdf. Equivalent

LP3515 Datasheet
Recommendation LP3515 Datasheet
Part LP3515
Description Second-Side Synchronous Rectifier
Feature LP3515; LP3515 Second-Side Synchronous Rectifier Description The LP3515 is a high performance second side s.
Manufacture LANDP
Datasheet
Download LP3515 Datasheet




LANDP LP3515
LP3515
Second-Side Synchronous Rectifier
Description
The LP3515 is a high performance second side
synchronous rectifier for isolated flyback application
in which a synchronous power MOSFET is integrated.
The LP3515 is suitable for charger application which
the high transfer efficiency is required.
The LP3515 can avoid mis-operation caused by
the demagnetization oscillation efficiently by using
proprietary primary side turn on estimation and
secondary side current discontinuous judgment
technology. LP3515 also involves proprietary VCC
supply technology which can ensure the IC can work
normally in primary side CC and CV working mode.
The LP3515 provides many protections which
include VCC UVLO, VCC over voltage clamping ,
output short max on time shunt down and the DRV pin
interference suppression.
The LP3515 is available in SOP7
Features
Isolated DCM mode application.
45V Power MOSFET integrated
Proprietary Primary Side Turn On Estimation
Secondary Side Current Discontinuous Judgment
Proprietary VCC Supply Technology
VCC Pin UVLO Protection
VCC Over Voltage Clamping
DRV Pin Noise Suppression
Few Peripheral Device
SOP7 Assembly
Application
Schottky diode replacement for flyback.
Suitable for 5V/2A US DoE IV application.
Charger and Adapter.
Typical Application
AC
PWM
GND LP3515
D
VCC AE DET
gnd
LP3515_EN_DS_Rev.1.0
Figure 1: Typical Application Circuit
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LANDP LP3515
Ordering Information
Version
Package
LP3515
SOP7
Pin Definition
BxxxxIC Indetifier
LP3515
Second-Side Synchronous Rectifier
Packing Form
Tape
3,000 piece/Roll
Marking
LP3515
Bxxxx
AE
VCC
GND
GND
DET
D
D
Terminal Description
Number
1
Definition
AE
2
34
56
VCC
GND
D
7 DET
Figure 2: Pin Definition
Description
Primary side turn on estimation setting pin
The power supply pin for the IC
The ground pin of the IC
The Drain Pin of the integrated MOSFET
The voltage supply and judgment pin of the IC
LP3515_EN_DS_Rev.1.0
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LANDP LP3515
LP3515
Second-Side Synchronous Rectifier
Absolute Maximum Ratings (note 1)
Symbol
Description
Parameter Scope Unit
DET Internal voltage supply and voltage sense pin
-0.3~48
V
D The Drain Pin of the integrated MOSFET
-0.3~45
V
VCC
The IC supply voltage
-0.3~8
V
AE Judgment Setting Pin
-0.3~8
V
PDMAX
θJA
θJC
TJ
TSTG
The power dissipation(note2)
The thermal resistance from junction to ambient
The thermal resistance from junction to tube
Operating junction temperature range
The storage temperature range
0.45
120
60
-40 to 150
-55 to 150
W
/W
/W
ESD (note 3)
2 KV
Note 1: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. Under “recommended operating
conditions” the device operation is assured, but some particular parameter may not be achieved. The electrical characteristics table defines the operation
range of the device, the electrical characteristics is assured on DC and AC voltage by test program. For the parameters without minimum and maximum
value in the EC table, the typical value defines the operation range, the accuracy is not guaranteed by spec.
Note 2: The maximum power dissipation decrease if temperature rise, it is decided by TJMAX, θJA, and environment temperature (TA). The maximum power
dissipation is the lower one between PDMAX = (TJMAX - TA)/ θJA and the number listed in the maximum table.
Note 3: Human Body mode, 100pF capacitor discharge on 1.5KΩ resistor
LP3515_EN_DS_Rev.1.0
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