PWM Controller. GR1230R Datasheet

GR1230R Controller. Datasheet pdf. Equivalent

GR1230R Datasheet
Recommendation GR1230R Datasheet
Part GR1230R
Description Multi-Mode PWM Controller
Feature GR1230R; Preliminary GR1230R Multi-Mode PWM Controller with Integrated Protections Features  Low Start-Up C.
Manufacture Grenergy
Datasheet
Download GR1230R Datasheet




Grenergy GR1230R
Preliminary GR1230R
Multi-Mode PWM Controller with Integrated Protections
Features
Low Start-Up Current (<3uA)
Multi-Mode Operation
CCM @ Heavy Load and Low Line
QR-Like Operation @ Medium Load
Green mode with Valley Skip at Light Load
Burst Mode at No Load
Accurate Over Current Protection
Adjustment OVP on QRD Pin
Output Short Protection
Soft Driver
4ms Soft-start
OVP (Over Voltage Protection) on Vcc Pin
On Chip OTP Protection
SOT-26 Package with Few External
Components Needed
Description
The GR1230R is a high performance multi-mode
(QR/CCM) PWM controller for flyback converter. It
minimizes the components counts and is available
in a tiny SOT-26 package. Those make it an ideal
design for low cost application. It provides functions
of low startup current, green- mode power-saving
operation, VCC over-voltage protection, and QRD
pin abnormal conditions sensing to prevent the
circuit being damaged from the abnormal
conditions.
Applications
Switching AC/DC power adapter
SMPS Power Supply
Typical Application Information
EMI
FILTER
QRD
VCC
GR1230R
GND
OUT
COMP
CS
2014.03. Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1



Grenergy GR1230R
Ordering and Marking Information
GR1230R
Preliminary GR1230R
Package Code
J: DIP-8
C: SOT-26
RoHS Code
G: Green (Halogen Free) Device
SOT-26
C30RX
X XXX
Code 2
Code
1
Serial
No.
Code 1 8 9 A B
GH
IJ
Year 2008 2009 2010 2011
2016
●●●
Code 2 1 2 3 4
9
2017
A
2018 2019
BC
Month Jan. Feb. Mar. Apr.
Sep. Oct. Nov. Dec.
Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture ability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Pin Configuration
SOT-26 (TOP VIEW)
GND
COMP
QRD
1
2
3
6 OUT
5 VCC
4 CS
Pin Description
Pin No.
Name
1 GND
2 COMP
3 QRD
4 CS
5 VCC
6 OUT
Function
Ground reference pin
Voltage feedback pin, by connecting a photo-coupler to control the duty cycle
This pin is for quasi-resonant detection and OVP.
Current sense pin, connected to sense resistor for sensing the MOSFET
current signal
Power supply pin
The output driver for driving the external MOSFET
2014.03. Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
2



Grenergy GR1230R
Preliminary GR1230R
Absolute Maximum Ratings
Supply voltage VCC --------------------------------------------------------------------------------------------------------- 30V
COMP, CS, QRD--------------------------------------------------------------------------------------------------- -0.3~6.0V
OUT ----------------------------------------------------------------------------------------------------------------- -0.3~Vcc+0.3V
Junction temperature ----------------------------------------------------------------------------------------------------- 150
Storage temperature range ---------------------------------------------------------------------------------- -65~ 150
SOT-26 package thermal resistance ------------------------------------------------------------------------------ 250/W
Power dissipation (SOT-26, at ambient temperature = 85) ------------------------------------------------ 250mW
Lead temperature (SOT-26 & DIP-8, soldering, 10 sec) -------------------------------------------------------- 230
Lead temperature (All Pb free packages, soldering, 10 sec) -------------------------------------------------- 260
ESD, human body model -------------------------------------------------------------------------------------------------- 2.5KV
ESD, machine model --------------------------------------------------------------------------------------------------------- 250V
Caution: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be
guaranteed and may cause permanent damage to the IC. These are stress ratings only and functional
operation of the device at these or any other condition beyond those indicated in the Electrical Characteristics
section of the specification is not implied. The “Electrical Characteristics” table defines the conditions for
actual device operation. Exposure to absolute maximum rated conditions for extended periods may affect
device reliability
Recommended Operating Conditions
Item
Min.
Max.
Unit
Operating Junction temperature
-20
125
Operating ambient temperature
Start Up Resistor (AC Half side)
-20
540k
85
2.2M
Ω
Supply voltage VCC
VCC Capacitor
9 26.5 V
2.2 10 μ F
COMP pin paralleling capacitor
2.2
33
nF
Note:
Not to exceed the maximum junction temperature of the IC, this relates to the
operating power of the IC and the thermal resistance of the IC-package as above.
The small signal components should be placed to IC pin as possible.
Its essential to connect VCC pin with a SMD ceramic capacitor (0.1μ F~0.47μ F) to
filter out the undesired switching noise for stable operation.
Connecting a capacitor to COMP pin is also essential to filter out the undesired
switching noise for stable operation.
Protection Mode
CCM Switching Frequency
65kHz
OLP/UVP
Auto recovery
VCC OVP
Auto recovery
QRD OVP
Auto recovery
2014.03. Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
3







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