NCV898031(2012) Просмотр технического описания (PDF) - ON Semiconductor
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NCV898031 Datasheet PDF : 13 Pages
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NCV898031
2 MHz Non-Synchronous
SEPIC/Boost Controller
The NCV898031 is an adjustable output non−synchronous 2 MHz
SEPIC/boost controller which drives an external N−channel
MOSFET. The device uses peak current mode control with internal
slope compensation. The IC incorporates an internal regulator that
supplies charge to the gate driver.
Protection features include internally−set soft−start, undervoltage
lockout, cycle−by−cycle current limiting and thermal shutdown.
Additional features include low quiescent current sleep mode and
microprocessor compatible enable pin.
Features
• Peak Current Mode Control with Internal Slope Compensation
• 1.2 V $2% Reference Voltage
• 2 MHz Fixed Frequency Operation
• Wide Input Voltage Range of 3.2 V to 40 V, 45 V Load Dump
• Input Undervoltage Lockout (UVLO)
• Internal Soft−Start
• Low Quiescent Current in Sleep Mode (< 10 mA Typical)
• Cycle−by−Cycle Current Limit Protection
• Hiccup−Mode Overcurrent Protection (OCP)
• Hiccup−Mode Short−Circuit Protection (SCP)
• Thermal Shutdown (TSD)
• This is a Pb−Free Device
Typical Applications
• Small Form Factor Point−of−Load Power Regulation
• Headlamps
• Backlighting
http://onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAM
8
898031
ALYW
G
1
898031 = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PIN CONNECTIONS
EN 1
ISNS 2
GND 3
GDRV 4
8 VFB
7 VC
6 VIN
5 VDRV
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCV898031D1R2G SOIC−8 2500 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
1
June, 2012 − Rev. 1
Publication Order Number:
NCV898031/D
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