SG6905SZ

Manufacturer Part NumberSG6905SZ
DescriptionIC PWM CTLR PFC/FLYBACK 20-SOP
ManufacturerFairchild Semiconductor
SG6905SZ datasheet
 


Specifications of SG6905SZ

ModeAverage CurrentFrequency - Switching65kHz
Current - Startup10µAVoltage - Supply16 V ~ 20 V
Operating Temperature-40°C ~ 105°CMounting TypeSurface Mount
Package / Case20-SOIC (7.5mm Width)Lead Free Status / RoHS StatusLead free / RoHS Compliant
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Electrical Characteristics
V
=15V, T
=25°C, unless otherwise noted.
DD
A
Symbol
Parameter
V
Section
DD
V
Continuous Operation Voltage
DD-OP
V
Turn-On Threshold Voltage
DD-ON
V
Turn-Off Threshold Voltage
DD-OFF
I
Startup Current
DD-ST
I
Operating Supply Current
DD-OP
V
V
Over-Voltage Protection Level
DD-OVP
DD
t
V
Over-Voltage Protection Debounce R
D-VDDOVP
DD
RI Section
V
RI Voltage
RI
RI
RI Pin Resistance Range
RI Pin Open Protection If R
RI
OPEN
SG6905 turns OFF
RI Pin Short Protection If R
RI
SHORT
SG6905 turns OFF
VRM Section
RMS AC-Voltage Under-Voltage
V
RMS-UVP-1
Protection Threshold (with T
V
Recovery Level on VRMS
RMS-UVP-2
Under-Voltage-Protection Delay Time
t
UVP
(No Delay for Startup)
UVP Occurs, the Interval from PFC Off
t
D-PWM
to PWM Off
© 2007 Fairchild Semiconductor Corporation
SG6905 • Rev. 1.1.2
Conditions
V
=V
– 0.16V
DD
DD-ON
V
=15V; OFC,
DD
OPWM open
=24kΩ
I
> RI
,
I
open
R
=24kΩ
I
< RI
,
I
short
R
=24kΩ
I
Delay)
UVP
R
=24kΩ
I
R
=24kΩ
I
7
Min.
Typ.
Max.
Units
20
15
16
17
9
10
11
10
25
6
10
23.5
24.5
25.5
8
25
1.17
1.20
1.23
15.6
47.0
200
2
0.75
0.80
0.85
V
V
V
RMS-UVP-
RMS-UVP-
RMS-UVP-
+0.17V
+0.19V
+0.21V
1
1
1
150
195
240
t
+9
t
+14
UVP-Min
UVP-Min
Continued on the following page…
www.fairchildsemi.com
V
V
V
µA
mA
V
µs
V
kΩ
kΩ
kΩ
V
V
ms
ms