Datasheet APR348 (Diodes)

ManufacturerDiodes
DescriptionSecondary Side Synchronous Rectification Controller
Pages / Page9 / 1 — APR348. SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER. Description. …
File Format / SizePDF / 523 Kb
Document Languageenglish

APR348. SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER. Description. Pin Assignments. (Top View). SOT26 (Type CJ). Features

Datasheet APR348 Diodes

Model Line for this Datasheet

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APR348 SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER Description Pin Assignments
The APR348 is a secondary-side MOSFET driver for synchronous
(Top View)
rectification, which can effectively reduce the secondary-side rectifier

power dissipation and provide a high-performance solution.

The APR348 can support continuous or discontinuous conduction

VCC 1

mode (CCM and DCM) and quasi-resonant flyback operation based 6 VDET

on a MOSFET operating on-time control technology. This technology
T
GND 2 5 DRISR provides very fast turn-on and turn-off delay to reduce power loss
C
and keep safe operation without adding any external components or
U
Rx 3
D
circuitry. The APR348 can configure into high-side or low-side

4 VDD
O
application to fit various design needs, and it can also provide high-
R
performance solutions up to 20V output voltage application. APR348
P
detects load conditions and determines safe pulse generation at light
SOT26 (Type CJ)
loads. The APR348 power supply can be charged by VDET or VCC,
W E
depending on PLR voltage from VCC pin, and can provide a wide
N
output operation voltage to 20V. The APR348 is available in SOT26 (Type CJ) package.
Features Applications
Synchronous Rectification Controller Adapters/Chargers for Cell/Cordless Phones, ADSL Modems, Suited for High-Side and Low-Side Flyback Converters in MP3 and Other Portable Apparatus CCM/DCM/QR Operation Fast Turn-On and Turn-Off Delay Internal UVLO Protection Light Load Mode Eliminate Resonant Ring Interference Fewest External Components Moisture Sensitivity: MSL Level 1 per J-STD-020 Terminals: Finish – Matte Tin Plated Leads, Solderable per M2003 JESD22-B102, Method 208 Weight: 0.016 grams (Approximate)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. APR348 1 of 9 December 2019 Document number: DS42016 Rev. 3 - 2
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