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APW7217

ANPEC
Part Number APW7217
Manufacturer ANPEC
Description Fixed 600kHz Step-UP Converter
Published Aug 17, 2020
Detailed Description APW7217 Fixed 600kHz Step-UP Converter for White LEDs Features General Description • Wide Input Voltage from 2.7V to...
Datasheet PDF File APW7217 PDF File

APW7217
APW7217

Overview
APW7217 Fixed 600kHz Step-UP Converter for White LEDs Features General Description • Wide Input Voltage from 2.
7V to 6V • Fixed 600kHz Switching Frequency • Reference Voltage : 0.
2V • PWM brightness control with wide frequency range of 5KHz to 100KHz • Build-in Power MOSFET: 0.
3Ω • Over-Voltage Protection • Under Voltage Lockout Protection • Over Temperature Protection • <1µA Quiescent Current during Shutdown • TDFN2x2-6 Package • Halogen and Lead Free Available (RoHS Compliant) Applications The APW7217 is a current-mode and fixed frequency 600kHz boost converter with an integrated N-FET to drive white LEDs.
The series connection allows the LED current to be identical for uniform brightness.
Its low on-resistance of NFET and low feedback voltage reduce power loss and achieve high efficiency.
600kHz Constant switching frequency allows using small-size inductor and both of input and output capacitors.
An over voltage protection function, which monitors the output voltage via LX pin, stops switching of the IC if the LX voltage exceeds the over voltage threshold.
An internal soft-start circuit eliminates the inrush current during start-up.
The APW7217 also integrates under-voltage lockout and over-temperature protection to protect the IC in abnormal conditions.
The APW7217 is available in TDFN2x2-6 package.
• White LED Display Backlighting • Cell Phone and Smart Phone • PDA, PMP, MP3 • Digital Camera Simplified Application Circuit Pin Configuration FB 1 NC 2 GND 3 6 VIN 5 EN 4 LX APW7217 TDFN2x2-6 Top View VIN L1 22 μH VOUT C1 1 μF VIN LX C2 1μF 10 strings GND EN FB PWM Dimming R1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1 Rev.
A.
1 - Apr.
, 2016 www.
anpec.
com.
tw APW7217 Ordering and Marking Information APW7217 Assembly Material Handling Co...


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