- 您现在的位置：买卖IC网 > PDF目录22125 > LNK586DG (Power Integrations)IC OFFLINE SW SO-8C PDF资料下载
参数资料
| 型号： | LNK586DG |
| 厂商： | Power Integrations |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SW SO-8C |
| 产品培训模块： | LinkZero-AX |
| 特色产品： | LinkZero-AX |
| 标准包装： | 100 |
| 输出隔离： | 任意一种 |
| 频率范围： | 93kHz ~ 107kHz |
| 输入电压： | 85 ~ 265VAC |
| 输出电压： | 700V |
| 功率（瓦特）： | 6W |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽）7 引线 |
| 供应商设备封装： | SO-8C |
| 包装： | 管件 |
| 其它名称： | 596-1425-5 |
LNK584-586
comparator for a short time (t LEB ) after the power MOSFET is
turned on. This leading edge blanking time has been set so
that current spikes caused by capacitance and rectifier reverse
recovery time will not cause premature termination of the
MOSFET conduction.
Auto Restart
In the event of a fault condition such as output short-circuit,
LinkZero-AX enters into auto-restart operation. An internal
counter clocked by the oscillator gets reset every time the
FEEDBACK pin voltage exceeds the FEEDBACK pin auto-restart
threshold voltage (V FB(AR) typical 0.9 V). If the FEEDBACK pin
voltage drops below V FB(AR) for more than 145 ms to 170 ms
depending on the line voltage, the power MOSFET switching is
disabled. The auto-restart alternately enables and disables the
switching of the power MOSFET at a duty cycle of typically 12%
until the fault condition is removed.
Open Loop Condition on the FEEDBACK Pin
When an open loop condition on the FEEDBACK pin is detected,
an internal current source pulls up the FEEDBACK pin to above
the V FB (1.70 V), the part stops switching and after 160 clock
cycles goes into latched Power-Down mode.
Applications Example
The circuit shown in Figure 4 is a typical non-isolated 5 V, 300 mA
output auxiliary power supply using LinkZero-AX. Isolated
configurations are also fully compatible with the LinkZero-AX
where the FEEDBACK pin receives a signal from a primary
feedback/bias winding or through an optocoupler. The circuit
of Figure 4 is typical of auxiliary supplies in white goods where
isolation is often not required. AC input differential filtering is
accomplished by the π filter formed by C1, C2 and L3. The
proprietary frequency jitter feature of the LinkZero-AX eliminates
the need for any Y capacitor or common-mode inductor. Wire-
wound resistor RF1 is a fusible, flame proof resistor which is used
as a fuse as well as to limit inrush current. Wire wound types are
recommended for designs that operate >132 VAC to withstand
the instantaneous power dissipated when AC is first applied.
The output voltage is directly sensed through feedback resistors
R3 and R9, and regulated by LinkZero-AX (U1) via the FEEDBACK
pin. Capacitor C7 provides high frequency filtering on the
FEEDBACK pin to filter noise and to avoid switching cycle pulse
bunching. The controller in U1 receives feedback from the
output through feedback resistors R9 and R3. Based on that
feedback, it enables or disables the switching of its integrated
MOSFET to maintain output regulation. Switching cycles are
skipped once the FEEDBACK pin threshold voltage (1.70 V) is
exceeded. When the voltage on the FEEDBACK pin falls below
the disable threshold (1.70 V), switching cycles are re-enabled.
By adjusting the ratio of enabled to disabled switching cycles
the output voltage is regulated. At increased loads, beyond the
output peak power point, where all switching cycles are
enabled, the FEEDBACK pin voltage begins to reduce as the
power supply output voltage falls. Under this condition the
switching frequency is also reduced to limit the maximum output
overload power. When the FEEDBACK pin voltage drops below
the auto-restart threshold (typically 0.9 V on the FEEDBACK
pin), the power supply enters the auto-restart mode. In this
mode, the power supply will turn off for approximately 1.2 s and
then turn back on for approximately 145 ms. The auto-restart
function reduces the average output current during an output
short-circuit condition.
L3
1 mH
T1
3 EE16 8
C4
R8 220 pF
5.1 ? 100 V
L4
1.8 μ H
C8
R13 56 μ F
510 ? 16 V
5 V, 300 mA
D1
1N4007
D2
1N4007
R2
4.7 k ?
1
10
D6
SS15
C6
220 μ F
25 V
RTN
RF1
10 ?
2W
C9
330 nF
50 V
R9
1 k ?
1%
85 - 265
VAC
C1
3.3 μ F
400 V
C2
3.3 μ F
400 V
D
LinkZero-AX
U1
LNK584DG
FB
Q1
MMBT3904
D3
1N4007
D4
1N4007
S
BP/M
R16
750 ?
R11
100 ?
R12
20 k ?
R10
20 k ?
PD Set
C5
150 nF
25 V
C10
47 μ F
25 V
C7
1 nF
50 V
R3
511 ?
1%
SW1
Q2
MMBT3904
R4
10 k ?
R14
2 k ?
PD Reset
RTN
PI-6121-101210
Figure 4.
4
Rev. B 11/12
Schematic of Non-Isolated 1.5 W, 5 V, 300 mA, 0.00 W Standby Consumption Power Supply.
www.powerint.com
相关PDF资料 |
PDF描述 |
|---|---|
| GRM31CR71A475MA01L | CAP CER 4.7UF 10V 20% X7R 1206 |
| HSM36DRKH-S13 | CONN EDGECARD 72POS .156 EXTEND |
| S5AC-13-F | DIODE GPP 5A 50V SMD |
| TAP104M035CRS | CAP TANT 0.1UF 35V 20% RADIAL |
| HMM36DRKH-S13 | CONN EDGECARD 72POS .156 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LNK586DG-TL | 功能描述:交流/直流开关转换器 5.0W @ 230 SWITCHER IC W/ 0W STANDBY RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| LNK586GG | 功能描述:交流/直流开关转换器 5.0W @ 230 SWITCHER IC W/ 0W STANDBY RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| LNK586GG-TL | 功能描述:交流/直流开关转换器 5.0W @ 230 SWITCHER IC W/ 0W STANDBY RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| LNK603 | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Energy-Efficient, Accurate CV/CC Switcher for Adapters and Chargers |
| LNK603_10 | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Energy-Efficient, Accurate CV/CC Switcher for Adapters and Chargers |
发布紧急采购，3分钟左右您将得到回复。