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GR8210 Schematic ( PDF Datasheet ) - Grenergy

Teilenummer GR8210
Beschreibung Dimming Universal High Brightness LED Driver
Hersteller Grenergy
Logo Grenergy Logo 




Gesamt 14 Seiten
GR8210 Datasheet, Funktion
www.DataSheet.co.kr
Preliminary GR8210
Dimming Universal High Brightness LED Driver
Features
Input voltage range from 5V to 450V
Cascode topology for lower switching loss and
surge voltage
Constant off time control
Line compensation of output current
Enable pin
Switch/PWM/Linear/SOTP dimming function
Leading-edge blanking
Frequency modulation in short circuit
protection and low output voltage condition
Over-temperature protection
Over-current protection
SOP-8 package, with few external components
needed
Application
DC/DC or AC/DC LED driver application
LED T Bar lighting
Cabin light in car
Both non-isolation and isolation lighting in high
input voltage
Ordering and Marking Information
General Description
The GR8210 is a high brightness LED driver with
the cascode topology that patented by Grenergy. A
high voltage power NMOSFET, BVDSS is 600V, as
the high side device and the power NMOSFET
inside the GR8210 as the low side device in this
cascode topology. A Zener voltage, was generated
by ST pin of the GR8210, turn on the high side
device all the time by connected to the gate terminal
of the high side device. The source terminal and the
drain terminal of the high side device are connected
to the DRN pin of the GR8210 and the input voltage
rail respectively to absorb the very large voltage
potential. The current peak value was decided by
the sensing resistor in the CS pin, the low side
device was turned off by the current peak detection
then delay a fixed off time that set by the resistor in
the RT pin of GR8210.
There are PWM and liner dimming in the GR8210 to
adjust the LED brightness. In the abnormal
operation, the inner OTP function and the external
OTP by the NTC resistor could protect the IC
damage.
* Switching dimming and system over-temperature dimming are
option functions, see below feature list
SOP-8
X – Feature Code
XXXXX – Date Code
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.
2009.07 Ver. B Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1
Datasheet pdf - http://www.DataSheet4U.net/






GR8210 Datasheet, Funktion
www.DataSheet.co.kr
Preliminary GR8210
Electrical Characteristics (Cont.)
Parameter
Symbol
Test Conditions
Min Typ Max Units
OVER TEMPERATURE PROTECTION SECTION
OTP trip level
OTP hysteresis
TOTP
TOTP_HYS
150
25
SYSTEM OVER-TEMPERATURE DIMMING SECTION
SOTP dimming voltage threshold of
100% current regulation
VSOTP_DIM
0.9 1.0 1.1
V
SOTP protection voltage
VSOTP_PRO
0.45 0.5 0.55 V
* Switching dimming and system over-temperature dimming are option functions.
2009.07 Ver. B Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
6
Datasheet pdf - http://www.DataSheet4U.net/

6 Page









GR8210 pdf, datenblatt
www.DataSheet.co.kr
Typical Application Circuit
Preliminary GR8210
Figure-11 110Vac or 220Vac input voltage, default off time, 24pcs LEDs light bar, 350mA application circuit.
2009.07 Ver. B Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
12
Datasheet pdf - http://www.DataSheet4U.net/

12 Page





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