SG6858DZ Fairchild Semiconductor, SG6858DZ Datasheet - Page 10
SG6858DZ
Manufacturer Part Number
SG6858DZ
Description
IC CTRLR PWM PROG GREEN CM 8DIP
Manufacturer
Fairchild Semiconductor
Datasheet
1.SG6858TZ.pdf
(13 pages)
Specifications of SG6858DZ
Output Isolation
Isolated
Frequency Range
65 ~ 75kHz
Voltage - Input
11.5 ~ 30 V
Voltage - Output
18V
Operating Temperature
-40°C ~ 125°C
Package / Case
8-DIP (0.300", 7.62mm)
Output Voltage
1.5 V to 8 V
Input Voltage
0.3 V to 7 V
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
Through Hole
Duty Cycle (max)
80 %
Number Of Outputs
1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG6858DZ
Manufacturer:
SG
Quantity:
20 000
© 2008 Fairchild Semiconductor Corporation
SG6858 • Rev. 1.2.4
Typical Application Circuit (Flyback Converter for Printer Application)
Transformer
L
AC Input
N
0.22µF/300V
1
3
4
2
105Turns
Application
1A/250V
-
-
22Turns
0.25Φ*1
0.27Φ*1
Adapter
N
F
N3
A
N1
1
Core: EF-20
Primary-Side Inductance: 2mH (Pin1 to Pin3)
XC
R
1MΩ
1MΩ
1.2Ω
R
R
VDD
100kΩ
XC2
XC1
R
RI
FR103
D
VDD
3
2
18Turns
0.3Φ*2
FB
RI
Fairchild
Devices
SG6858
N2
+
10µF/50V
C
VDD
SG6858
GND
VDD
IN4007*4
1
5
Figure 17.
TP+
TP–
SENSE
GATE
Figure 18.
22µF/400V
+
Input Voltage Range
C
1.5MΩ
Bulk
6
4
R
Start
Schematic of Application Circuit
90~264V
Transformer Structure
66kΩ
47Ω
10Ω
R
R
10
UF1003
SN
G
AC
2.2nF
D
10nF/1KV
R
CY
SN
SN
C
R
SN
SENSE
N
P
PC817
SSP2N60
1.5Ω
N
47Ω 1nF
TL431
R
S
1%
SN2
MBR10100CT
D
R
C
SN2
560Ω
12V/1.25A (15W)
20kΩ 2.2nF
Output
R
N3: 2-4
N2: TP – - TP+
N1: 1-3
Shielding lead to Pin 2
Shielding lead to Pin 2
Shielding lead to Pin 2
F
680µF/16V
R
C
d
O1
C
+
F
C
O2
470µF/16V
+
38.3kΩ
R
10kΩ
R
1
2
www.fairchildsemi.com
V
V
O
O
-
+