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| 型号： | TNY267G |
| 厂商： | Power Integrations |
| 文件页数： | 5/22页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT OTP OCP HV 8SMD |
| 标准包装： | 50 |
| 系列： | TinySwitch®-II |
| 输出隔离： | 隔离 |
| 频率范围： | 124kHz ~ 140kHz |
| 输出电压： | 700V |
| 功率（瓦特）： | 19W |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-SMD（7 个接脚），鸥形翼 |
| 供应商设备封装： | SMD-8B |
| 包装： | 管件 |
TNY263-268
the appropriate current limit. At high loads, when the EN/UV
pin is high (less than 240 μ A out of the pin), a switching cycle
with the full current limit occurs. At lighter loads, when EN/UV
reduced even further (Figure 9). Only a small percentage of
cycles will occur to satisfy the power consumption of the
power supply.
is high, a switching cycle with a reduced current limit occurs.
The response time of the TinySwitch-II ON/OFF control
At near maximum load, TinySwitch-II will conduct during
nearly all of its clock cycles (Figure 6). At slightly lower load, it
will “skip” additional cycles in order to maintain voltage
regulation at the power supply output (Figure 7). At medium
loads, cycles will be skipped and the current limit will be
reduced (Figure 8). At very light loads, the current limit will be
V
EN
CLOCK
scheme is very fast compared to normal PWM control. This
provides tight regulation and excellent transient response.
Power Up/Down
The TinySwitch-II requires only a 0.1 μ F capacitor on the
BYPASS pin. Because of its small size, the time to charge this
capacitor is kept to an absolute minimum, typically 0.6 ms.
Due to the fast nature of the ON/OFF feedback, there is no
overshoot at the power supply output. When an external
resistor (2 M Ω ) is connected from the positive DC input to the
EN/UV pin, the power MOSFET switching will be delayed
during power-up until the DC line voltage exceeds the
threshold (100 V). Figures 10 and 11 show the power-up timing
waveform of TinySwitch-II in applications with and without an
D
MAX
external resistor (2 M Ω ) connected to the EN/UV pin.
During power-down, when an external resistor is used, the
power MOSFET will switch for 50 ms after the output loses
I DRAIN
V DRAIN
PI-2749-050301
regulation. The power MOSFET will then remain off without
any glitches since the undervoltage function prohibits restart
when the line voltage is low.
Figure 12 illustrates a typical power-down timing waveform of
TinySwitch-II. Figure 13 illustrates a very slow power-down
timing waveform of TinySwitch-II as in standby applications.
The external resistor (2 M Ω ) is connected to the EN/UV pin in
this case to prevent unwanted restarts.
The TinySwitch-II does not require a bias winding to provide
power to the chip, because it draws the power directly from
Figure 6.
V
EN
CLOCK
TinySwitch-II Operation at Near Maximum Loading.
the DRAIN pin (see Functional Description above). This has
V
EN
CLOCK
D
MAX
D
MAX
I DRAIN
V DRAIN
PI-2667-090700
I DRAIN
V DRAIN
PI-2377-091100
Figure 7.
TinySwitch-II Operation at Moderately Heavy Loading.
Figure 8.
TinySwitch-II Operation at Medium Loading.
5
www.powerint.com
Rev. H 02/09
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TNY267GN | 功能描述:交流/直流开关转换器 12W 85-265 VAC 19W/230 VAC 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 |
| TNY267GN-TL | 功能描述:交流/直流开关转换器 12W 85-265 VAC 19W/230 VAC 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 |
| TNY267GTL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Enhanced, Energy Efficient, Low Power Off-line Switcher |
| TNY267G-TL | 功能描述:IC OFFLINE SWIT OTP OCP HV 8SMD RoHS:否 类别:集成电路 (IC) >> PMIC - AC-DC 转换器，离线开关 系列:TinySwitch®-II 标准包装:1 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-MDIP 包装:Digi-Reel® 其它名称:FSL206MRBNFSDKR |
| TNY267P | 功能描述:IC OFFLINE SWIT OTP OCP HV 8DIP RoHS:否 类别:集成电路 (IC) >> PMIC - AC-DC 转换器，离线开关 系列:TinySwitch®-II 标准包装:1 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-MDIP 包装:Digi-Reel® 其它名称:FSL206MRBNFSDKR |
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