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CS2844LDR14

Description
1 A SWITCHING CONTROLLER, PDSO16
CategoryPower/power management    The power supply circuit   
File Size159KB,12 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet Parametric View All

CS2844LDR14 Overview

1 A SWITCHING CONTROLLER, PDSO16

CS2844LDR14 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerON Semiconductor
Parts packaging codeSOIC
package instructionSOP, SOP14,.25
Contacts14
Reach Compliance Code_compli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage25 V
Minimum input voltage11 V
Nominal input voltage15 V
JESD-30 codeR-PDSO-G14
JESD-609 codee0
length8.65 mm
Number of functions1
Number of terminals14
Maximum operating temperature85 °C
Minimum operating temperature-25 °C
Maximum output current1 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP14,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Switch configurationSINGLE
technologyBIPOLAR
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
CS2844, CS3844, CS2845,
CS3845
Current Mode PWM
Control Circuit with
50% Max Duty Cycle
The CS3844/45 provides all the necessary features to implement
off–line fixed frequency current–mode control with a minimum
number of external components.
The CS3844 family incorporates a new precision
temperature–controlled oscillator to minimize variations in frequency.
An internal toggle flip–flop, which blanks the output every other clock
cycle, limits the duty–cycle range to less than 50%. An undervoltage
lockout ensures that V
REF
is stabilized before the output stage is
enabled. In the CS2844/CS3844 turn on occurs at 16 V and turn off at
10 V. In the CS2845/CS3845 turn on is at 8.4 V and turn off at 7.6 V.
Other features include low start–up current, pulse–by–pulse current
limiting, and a high–current totem pole output for driving capacitive
loads, such as gate of a power MOSFET. The output is low in the off
state, consistent with N–channel devices.
Features
Optimized for Off–Line Control
Temp. Compensated Oscillator
50% Max Duty–Cycle Clamp
V
REF
Stabilized Before Output Stage Is Enabled
Low Start–Up Current
Pulse–By–Pulse Current Limiting
Improved Undervoltage Lockout
Double Pulse Suppression
1.0% Trimmed Bandgap Reference
High Current Totem Pole Output
http://onsemi.com
MARKING
DIAGRAMS
8
DIP–8
N SUFFIX
CASE 626
1
SO–8
D SUFFIX
CASE 751
1
14
SO–14
D SUFFIX
CASE 751A
1
16
SO–16L
DW SUFFIX
CASE 751G
1
1
x
y
A
WL, L
YY, Y
WW, W
= 2 or 3
= 4 or 5
= Assembly Location
= Wafer Lot
= Year
= Work Week
CSx84yDW
AWLYYWW
CSx84yD14
AWLYWW
CSx84yN
AWL
YYWW
1
8
384yD
ALYW
8
8
1
14
1
16
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
©
Semiconductor Components Industries, LLC, 2001
1
June, 2001 – Rev. 3
Publication Order Number:
CS2844/D
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