- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382500 > SG6859 (Fairchild Semiconductor Corporation) Low Cost Green-Mode PWM Controller for Flyback Converters PDF資料下載
參數(shù)資料
| 型號(hào)： | SG6859 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Low Cost Green-Mode PWM Controller for Flyback Converters |
| 中文描述： | 低成本綠色模式PWM控制器，用于回掃轉(zhuǎn)換 |
| 文件頁(yè)數(shù)： | 2/13頁(yè) |
| 文件大小： | 483K |
| 代理商： | SG6859 |
第1頁(yè)當(dāng)前第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)
Product Specification
Low Cost Green-Mode PWM Controller for Flyback Converters
SG6859
MARKING DIAGRAMS
PIN CONFIGURATION
ORDERING INFORMATION
Part Number
Pb-Free
Package
System General Corp.
Version 1.2.1(IAO33.0067.B2)
- 2 -
www.sg.com.tw
www.fairchildsemi.com
September 28, 2007
SG6859TZ
6-Pin SOT-26
SG6859DZ
8-Pin DIP-8
PIN DESCRIPTIONS
Pin No.
Name
DIP-8(SOT-26)
Type
Function
GATE
VDD
NC
1 / (6)
2 / (5)
3
Driver Output
Supply
The totem-pole output driver for driving the power MOSFET.
Power supply.
NC pin.
Current sense. This pin senses the voltage across a resistor. When the voltage
reaches the internal threshold, PWM output is disabled. This activates
over-current protection. This pin also provides current amplitude information for
current-mode control.
A resistor connected from the RI pin to ground will generate a constant current
source for the SG6859. This current is used to charge an internal capacitor, to
determine the switching frequency. Increasing the resistance will reduce the
amplitude of the current source and reduce the switching frequency. A 95k
resistor R
i
results in a 50uA constant current I
i
and a 70kHz switching frequency.
NC pin.
Feedback. The FB pin provides the output voltage regulation signal. It provides
feedback to the internal PWM comparator, so that the PWM comparator can
control the duty cycle.
SENSE
4 / (4)
Analog Input
RI
5 / (3)
Analog
Input/Output
NC
6
FB
7 / (2)
Analog Input
GND
8 / (1)
Supply
Ground.
AAJ:
SG6859
M
: Mask Version
W
: Week code A~Z=W1~W26
A~Z=W27~W52
: Lead Free Package
SOT-26
GND
FB
RI
GATE
VDD
SENSE
T
: D=DIP
P:
Z =Lead Free
Null=Regular Package
XXXXXXXX
: Wafer Lot
Y
: Year;
WW
: Week
V
: Assembly Location
DIP-8
RI
NC
FB
GND
SENSE
NC
VDD
GATE
AAJMW
XXXXXXXXYWWV
SG6859TP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SG6859DZ | Low Cost Green-Mode PWM Controller for Flyback Converters |
| SG6859TZ | Low Cost Green-Mode PWM Controller for Flyback Converters |
| SG6901A | PFC / Flyback PWM Controller |
| SG6901ASZ | PFC / Flyback PWM Controller |
| SG6902 | Green-Mode PFC / Flyback-PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG6859A | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Cost, Green-Mode PWM Controller for Flyback Converters |
| SG6859A_10 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Cost, Green-Mode PWM Controller for Flyback Converters |
| SG6859ADY | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Cost, Green-Mode PWM Controller for Flyback Converters |
| SG6859ADZ | 功能描述:電流型 PWM 控制器 Current Mode PWM Controller 8-Pin RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| SG6859AT | 制造商:Fairchild Semiconductor Corporation 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。