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SG6849 数据表(PDF) 2 Page - List of Unclassifed Manufacturers

部件名 SG6849
功能描述  Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

SG6849 数据表(HTML) 2 Page - List of Unclassifed Manufacturers

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Product Specification
Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
SG6849
© System General Corp.
- 2 -
www.sg.com.tw
Version 1.0(IRO33.0002.B3)
Dec.29, 2003
MARKING INFORMATION
PIN CONFIGURATION
ORDERING INFORMATION
Part Number
PWM Frequency
Package
SG6849-65T
65kHz
6-Pin SOT-26
SG6849-100T
100kHz
6-Pin SOT-26
SG6849-65D
65kHz
8-pin DIP-8
SG6849-100D
100kHz
8-pin DIP-8
PIN DESCRIPTIONS
Pin No.
Name
DIP-8 SOT-26
Type
Function
GATE
1
6
Driver Output The totem-pole output driver to drive the power MOSFET.
VDD
2
5
Supply
Power supply.
NC
3
NA
NC pin.
SENSE
4
4
Analog Input
Current sense. It senses the voltage across a sensed resistor. To provide over-current
protection, PWM output is disabled if the voltage exceeds an internal threshold. This pin
also provides current information for current-mode control.
NC
5
3
NC pin.
NC
6
NA
NC pin.
FB
7
2
Analog Input
Feedback. The FB pin provides feedback information to the internal PWM comparator.
This feedback is used to control the duty cycle. When no feedback is provided, this pin is
left open.
GND
8
1
Supply
Ground.
M: Mask Version
X: B= SG6849-65T
C= SG6849-100T
Y: Year
WW: Work Week
1
2
3
4
5
6
SOT-26
GND
FB
NC
GATE
VDD
SENSE
1
MXYWW
ZZZ: 65 or 100
XXXXXXX: Wafer Lot
YY: Year
WW: Week
V: Assembly Location
8
1
SG6849-ZZZD
XXXXXXXYYWWV
NC
SENSE
NC
GND
FB
NC
GATE
VDD
3
1
2
4
5
6
8
7
DIP-8


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