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NCP1561DR2

Description
0.01 A SWITCHING CONTROLLER, 260 kHz SWITCHING FREQ-MAX, PDSO16
CategoryPower/power management    The power supply circuit   
File Size253KB,22 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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NCP1561DR2 Overview

0.01 A SWITCHING CONTROLLER, 260 kHz SWITCHING FREQ-MAX, PDSO16

NCP1561DR2 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerON Semiconductor
Parts packaging codeSOIC
package instructionSOP-16
Contacts16
Reach Compliance Code_compli
ECCN codeEAR99
Other featuresCAN ALSO BE CONFIGURED IN CURRENT MODE
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage150 V
Minimum input voltage21.5 V
Nominal input voltage48 V
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length9.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current0.01 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency260 kHz
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.9 mm
NCP1561
Push−Pull PWM Controller
for 48 V Telecom Systems
The NCP1561 Push−Pull PWM controller contains all the features
and flexibility needed to implement high efficiency dc−dc converters
using voltage or current−mode control. This device can be configured
in any dual ended topology such as push−pull or half−bridge. It can
also be used for forward topologies requiring a 50% maximum duty
cycle. This device is ideally suited for 48 V telecom, 42 V automotive
systems and 12 V input applications.
The NCP1561 cost effectively reduce system part count by
incorporating a high voltage startup regulator, line undervoltage
detector, single resistor oscillator setting, dual mode overcurrent
protection, soft−start and single resistor feedforward ramp generator.
The oscillator frequency can be adjusted up to 250 kHz.
Features
http://onsemi.com
MARKING
DIAGRAM
16
SO−16
D SUFFIX
CASE 751B
1
1
NCP1561 = Device Code
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
NCP1561
AWLYWW
16
Internal High Voltage Startup Regulator
Minimum Operating Voltage of 21.5 V
Voltage or Current−Mode Control Capability
Single Resistor Oscillator Frequency Setting
Adjustable Frequency up to 250 kHz
Fast Line Feedforward
Line Undervoltage Lockout
Dual Mode Overcurrent Protection
Programmable Maximum Duty Cycle Control
Maximum Duty Cycle Proportional to Line Voltage
Programmable Soft−Start
Precision 5.0 V Reference
PIN ASSIGNMENTS
V
in
UV
RAMP_OUT
FF
CS
CSKIP
R
T
DC
MAX
V
AUX
OUT1
GND
OUT2
RAMP_IN
V
REF
V
EA
SS
Typical Applications
48 V Telecommunication Power Converters
Industrial Power Converters
42 V Automotive Systems
M4
C1
C2
M2
OUT1
M3
High Side
Driver
Driver
M1
OUT2
Opto
TX1
ORDERING INFORMATION
Device
NCP1561DR2
Package
SO−16
Shipping
2500 Units/Reel
Vin
+
Startup
†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.
Lout
Cout
Feedforward
NCP1561
OUT2
OUT1
Error
Amplifier
Figure 1. Half−Bridge Block Diagram
©
Semiconductor Components Industries, LLC, 2004
1
August, 2004 − Rev. 3
Publication Order Number
NCP1561/D

NCP1561DR2 Related Products

NCP1561DR2 NCP1561
Description 0.01 A SWITCHING CONTROLLER, 260 kHz SWITCHING FREQ-MAX, PDSO16 0.01 A SWITCHING CONTROLLER, 260 kHz SWITCHING FREQ-MAX, PDSO16
control mode VOLTAGE-MODE VOLTAGE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Number of functions 1 1
Number of terminals 16 16
Maximum operating temperature 125 °C 125 Cel
Minimum operating temperature -40 °C -40 Cel
Maximum output current 0.01 A 0.0100 A
surface mount YES Yes
Switch configuration PUSH-PULL PUSH-PULL
Maximum switching frequency 260 kHz 260 kHz
Temperature level AUTOMOTIVE AUTOMOTIVE
Terminal form GULL WING GULL WING
Terminal location DUAL DUAL

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