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PDF GR8762 Data sheet ( Hoja de datos )
| Número de pieza | GR8762 | |
| Descripción | Power Factor Controller IC | |
| Fabricantes | Grenergy | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de GR8762 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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GR8762
Power Factor Controller IC for High Power Factor
Features
Low Startup Current
Low Quiescent Current
Under-Voltage Lockout with Hysteresis
Zero Current Detector for Critical Conduction
Mode
Dynamic and Static Output Over-Voltage
Protection
Gate Output Maximum Voltage Clamped
Internal Restart Timer
1% Internal Reference Voltage
Internal Leading-Edge Blanking
+/-500mA Totem Pole Output with Active Shut
Down
Applications
Power Supply PFC Pre-Regulator
LED Lighting Application
Desktop PC
Electronics Ballast for Fluorescent Lamp
Description
The GR8762 is a current-mode PFC controller
operating in critical conduction mode. The
sinusoidal current is taken from the single phase line
supply and stabilized DC voltage is available at the
output. The IC includes a highly liner multiplier
which can reduce AC input current distortion, that
allows wide-range-mains operation with an
extremely low THD, even over a large load range.
The output voltage is controlled by an error amplifier
and an internal voltage reference. An effective
two-step (dynamic and static) OVP enables to safely
handle over voltages either occurring at start-up or
resulting from load disconnection. The totem-pole
output stage capable of ±500mA driving capability is
suitable for big MOSFET or IGBT. It is available in
both 8-pin DIP and 8-pin SOP package.
Ordering and Marking Information
DIP-8/SOP-8
Code 1 8 9 A B
Year 2008 2009 2010 2011 ● ● ●
Code 2 1 2 3 4
Month Jan. Feb. Mar. Apr.
G
2016
9
Sep.
H
2017
A
Oct.
I
2018
B
Nov.
J
2019
C
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.
2012.04 Ver.1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
1
1 page  
GR8762
Hysteresis
Static OVP Threshold
CURRENT SENSE COMPARATOR
Delay to Output
Current Sense Reference Clamp
Current Sense Offset
Leading Edge Blanking
ZERO CURRENT DETECTOR
Upper Clamp Voltage
Lower Clamp Voltage
Upper Threshold Voltage Arming
Voltage (positive-going edge)
Lower Threshold Voltage Arming
Voltage (negative-going edge)
Source Current Capability
VCOMP= Upper Clamp
VMUL= 0
IZCD= 2.5mA
IZCD= -2.5mA
Sink Current Capability
Disable Threshold
Restart Threshold
Restart Current after Disable
RESTART TIMER
Restart Time
GATE DRIVER
Dropout voltage
IGD source = 20mA
IGD source = 200mA
IGD sink=200mA
Rising Time
Load=1nF
Falling Time
Load=1nF
Clamp
UVLO Saturation
VCC = 0 to VCC
Isink=2mA
TD(H-L)
VCSoffset
TLEB
VZCDA
VZCDT
IZCD_src
IZCD_sink
VZCD_DIS
VZCD_EN
TRES
TRISE
TFALL
VCLAMP
2.15
1.6
5.0
0.3
-2.5
2.5
150
250
30
75
10
20
2.25
200
1.7
30
200
5.7
0.65
1.7
1.3
200
75
190
2.0
5.5
1.3
40
30
12
2.35
350
1.8
6.5
1.0
-5.5
250
350
300
2.6
6.5
2.0
80
70
15
3.5
uA
V
nS
V
mV
nS
V
V
V
V
mA
mA
mV
mV
uA
uS
V
V
V
nS
nS
V
V
2012.04 Ver.1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
5
5 Page 
BOM List (Cont.)
No. Part
33 R17, R18
34 R19
35 R20
36 T1
37 U1
38 Z1
39 PCB
Description
330K 1206 1%
4.3K 0805 1%
91K 0805 1%
PQ2620 0.7mH
SOP-8 GR8762
18V 1W
CEM-1 2oz 1mm 110*56mm
GR8762
Q’ty.
2
1
1
1
1
1
1
2012.04 Ver.1. 0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet GR8762.PDF ] | |
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