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参数资料
| 型号： | FSL206MRN |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 3/14页 |
| 文件大小： | 0K |
| 描述： | IC PWM/SEMSEFET SMPS 0.6A 8-DIP |
| 标准包装： | 50 |
| 系列： | FPS™ |
| 输出隔离： | 隔离 |
| 频率范围： | 61kHz ~ 73kHz |
| 输入电压： | 8 V ~ 26 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 12W |
| 工作温度： | -40°C ~ 115°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
Pin Configuration
Pin Definitions
Figure 3.
Pin Configuration
Pin #
1
2
3
4
5
6, 7, 8
Name
GND
V CC
V FB
LS
V STR
Drain
Description
Ground . SenseFET source terminal on primary side and internal control ground.
Positive Supply Voltage Input . Although connected to an auxiliary transformer winding,
current is supplied from pin 5 (V STR ) via an internal switch during startup (see Internal Block
Diagram section) . It is not until V CC reaches the UVLO upper threshold (8V) that the internal
startup switch opens and device power is supplied via the auxiliary transformer winding.
Feedback Voltage . Non-inverting input to the PWM comparator, with a 0.11mA current source
connected internally and a capacitor and opto-coupler typically connected externally. There is a
delay while charging external capacitor C FB from 2.4V to 5V using an internal 2.7 μ A current
source. This delay prevents false triggering under transient conditions, but allows the protection
mechanism to operate under true overload conditions.
Line Sense Pin . This pin is used to protect the device when the input voltage is lower than the
rated input voltage range. If this pin is not used, connect to ground.
Startup . Connected to the rectified AC line voltage source. At startup, the internal switch
supplies internal bias and charges an external storage capacitor placed between the V CC pin
and ground. Once V CC reaches 8V, all internal blocks are activated. After that, the internal high-
voltage regulator (HV REG) turns on and off irregularly to maintain V CC at 7.8V.
Drain . Designed to connect directly to the primary lead of the transformer and capable of
switching a maximum of 650V. Minimizing the length of the trace connecting these pins to the
transformer decreases leakage inductance.
? 2011 Fairchild Semiconductor Corporation
FSL206MR ? Rev. 1.0.5
3
www.fairchildsemi.com
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