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PWM Controller. OB5269 Datasheet

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PWM Controller. OB5269 Datasheet






OB5269 Controller. Datasheet pdf. Equivalent




OB5269 Controller. Datasheet pdf. Equivalent





Part

OB5269

Description

High Voltage Green Mode PWM Controller



Feature


OB5269 High Voltage Green Mode PWM Contr oller GENERAL DESCRIPTION FEATURES O B5269 is a highly integrated current mo de PWM ■ High Voltage Startup contro l IC with high voltage start up, optimi zed for ■ Power on Soft Start Reducin g MOSFET Vds high performance, low sta ndby power Stress consumption and cos t effective offline flyback converter a pplications. PWM switc.
Manufacture

On-Bright

Datasheet
Download OB5269 Datasheet


On-Bright OB5269

OB5269; hing frequency at normal operation is in ternally fixed and is trimmed to a tigh t range. At no load or light load condi tion, the IC operates in extended ‘bu rst mode’ to minimize switching loss. Very low standby power consumption and very high conversion efficiency is thu s achieved. ■ ■ ■ ■ ■ Ktec Frequency shuffling for EMI Extended Bu rst Mode Control For Improved Ef.


On-Bright OB5269

ficiency and Minimum Standby Power Audio Noise Free Operation Fixed 65KHZ Switc hing Frequency Comprehensive Protection Coverage o VDD Under Voltage Lockout w ith Hysteresis (UVLO) High voltage sta rtup is implemented in OB5269, which fe atures with short startup time and low standby current. to OB5269 offers compl ete protection coverage with auto-recov ery including Cycl.


On-Bright OB5269

e-by-Cycle current l limiting (OCP), ove r load protection (OLP), and VDD under voltage lockout (UVLO). It also tia pro vides the protections with latched shut down including over temperature protec tion (OTP), and over voltage (fixed or adjustable) protection (OVP). Excellent EMI performance is achieved with On- n Bright proprietary frequency shuffling technique. The to.

Part

OB5269

Description

High Voltage Green Mode PWM Controller



Feature


OB5269 High Voltage Green Mode PWM Contr oller GENERAL DESCRIPTION FEATURES O B5269 is a highly integrated current mo de PWM ■ High Voltage Startup contro l IC with high voltage start up, optimi zed for ■ Power on Soft Start Reducin g MOSFET Vds high performance, low sta ndby power Stress consumption and cos t effective offline flyback converter a pplications. PWM switc.
Manufacture

On-Bright

Datasheet
Download OB5269 Datasheet




 OB5269
OB5269
High Voltage Green Mode PWM Controller
GENERAL DESCRIPTION
FEATURES
OB5269 is a highly integrated current mode PWM High Voltage Startup
control IC with high voltage start up, optimized for Power on Soft Start Reducing MOSFET Vds
high performance, low standby power
Stress
consumption and cost effective offline flyback
converter applications.
PWM switching frequency at normal operation is
internally fixed and is trimmed to a tight range. At
no load or light load condition, the IC operates in
extended ‘burst mode’ to minimize switching loss.
Very low standby power consumption and very
high conversion efficiency is thus achieved.
Ktec Frequency shuffling for EMI
Extended Burst Mode Control For Improved
Efficiency and Minimum Standby Power
Audio Noise Free Operation
Fixed 65KHZ Switching Frequency
Comprehensive Protection Coverage
o VDD Under Voltage Lockout with
Hysteresis (UVLO)
High voltage startup is implemented in OB5269,
which features with short startup time and low
standby current.
to OB5269 offers complete protection coverage with
auto-recovery including Cycle-by-Cycle current
l limiting (OCP), over load protection (OLP), and
VDD under voltage lockout (UVLO). It also
tia provides the protections with latched shut down
including over temperature protection (OTP), and
over voltage (fixed or adjustable) protection (OVP).
Excellent EMI performance is achieved with On-
n Bright proprietary frequency shuffling technique.
The tone energy at below 22KHZ is minimized to
e avoid audio noise during operation.
fid OB5269 is offered in SOP8 package.
o Cycle-by-cycle over current protection
(OCP)
o Overload Protection (OLP) with auto-
recovery
o Over Temperature Protection (OTP) with
latch shut down
o VDD Over voltage Protection(OVP) with
latch shut down
o Adjustable OVP through external Zener
APPLICATIONS
Offline AC/DC flyback converter for
Battery Charger
Power Adaptor
Open-frame SMPS
On-Bright Con TYPICAL APPLICATION
©On-Bright Electronics
Confidential
-1-
Preliminary Datasheet
OB_DOC_DS_526902




 OB5269
OB5269
High Voltage Green Mode PWM Controller
GENERAL INFORMATION
Absolute Maximum Ratings
Pin Configuration
Parameter
Value
The OB5269 is offered in SOP8 package, shown
VDD DC Supply Voltage 30V
as below.
High-Voltage Pin, HV
-0.3 to 500 V
RT
FB
CS
GND
1
8
2
7
OB5269
3
6
4
5
HV
NC
VDD
GATE
VDD Zener Clamp
VoltageNote
VDD DC Clamp Current
FB Input Voltage
CS Input Voltage
RT Input Voltage
Min/Max Operating
Junction Temperature TJ
Ktec VDD_Clamp+0.1V
10 mA
-0.3 to 7V
-0.3 to 7V
-0.3 to 7V
-40 to 150
to Ordering Information
Part Number
Description
l OB5269CP
SOP8, Pb-free
OB5269CPA
SOP8, Pb-free in Taping
tia Package Dissipation Rating
n Package
RθJA(/W)
SOP8
150
Min/Max Storage
Temperature Tstg
-55 to 160
Lead
Temperature
(Soldering, 10secs)
260
Note: VDD_Clamp has a nominal value of 32V.
Stresses beyond those listed under “absolute maximum
ratings” may cause permanent damage to the device. These
are stress ratings only, functional operation of the device at
these or any other conditions beyond those indicated under
“recommended operating conditions” is not implied. Exposure
to absolute maximum-rated conditions for extended periods
may affect device reliability.
nfide OB5269 X
X
X
Co Current Mode PWM Controller with HV
On-Bright Startup
Package
C:SOP8
Package Pb free
P:lead-free
Packing
Blank:Tube
A:Taping
©On-Bright Electronics
Confidential
-2-
Preliminary Datasheet
OB_DOC_DS_526902




 OB5269
Marking Information
OB5269
High Voltage Green Mode PWM Controller
YWWZZZ
OB5269CP
S
Y:Year Code
WW:Week Code(01-52)
ZZZ:Lot Code
Ktec
C:SOP8 Package
P:Pb-free Package
S:Internal Code(Optional)
l to TERMINAL ASSIGNMENTS
tia Pin
Num
1
en 2
fid 3
4
5
6
n 8
Pin Name
RT
FB
CS
GND
Gate
VDD
HV
I/O Description
Dual function pin. Either connected through a NTC resistor to ground for
I over temperature shutdown/latch control or connected through Zener to
VDD for adjustable over voltage protection
I
Feedback input pin. The PWM duty cycle is determined by voltage level
into this pin and the current-sense signal at CS pin
I Current sense input
P Ground
O Totem-pole gate driver output for power Mosfet
P Power Supply
P Connected to the line input or bulk capacitor via resistors for startup
o RECOMMENDED OPERATING CONDITION
C Symbol
Parameter
Min/Max
Unit
t VDD
VDD Supply Voltage
12 to 23.5
V
On-Brigh TA
Operating Ambient Temperature
-20 to 85
©On-Bright Electronics
Confidential
-3-
Preliminary Datasheet
OB_DOC_DS_526902



Recommended third-party OB5269 Datasheet






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