参数资料
型号: TNY278PN
厂商: Power Integrations
文件页数: 17/24页
文件大小: 0K
描述: IC OFFLINE SWIT OVP OTP HV 8DIP
标准包装: 50
系列: TinySwitch®-III
输出隔离: 隔离
频率范围: 124kHz ~ 140kHz
输出电压: 700V
功率(瓦特): 28W
工作温度: -40°C ~ 150°C
封装/外壳: 8-DIP(0.300",7.62mm),7 引线
供应商设备封装: DIP-8C
包装: 管件
产品目录页面: 1203 (CN2011-ZH PDF)
配用: 596-1194-ND - KIT DESIGN REF TINYSWITCH-III
其它名称: 596-1094-2
596-1094-2-ND
596-1094-5
TNY274-280
NOTES:
A. I S1 is an accurate estimate of device controller current consumption at no-load, since operating frequency is so low under these
conditions. Total device consumption at no-load is the sum of I S1 and I DSS2 .
B. Since the output MOSFET is switching, it is dif?cult to isolate the switching current from the supply current at the DRAIN. An
alternative is to measure the BP/M pin current at 6.1 V.
C. BP/M pin is not intended for sourcing supply current to external circuitry.
D. To ensure correct current limit it is recommended that nominal 0.1 μ F / 1 μ F / 10 μ F capacitors are used. In addition, the BP/M
capacitor value tolerance should be equal or better than indicated below across the ambient temperature range of the target
application. The minimum and maximum capacitor values are guaranteed by characterization.
Nominal BP/M
Pin Cap Value
Tolerance Relative to Nominal
Capacitor Value
Min
Max
0.1 μ F
1 μ F
10 μ F
-60%
-50%
-50%
+100%
+100%
NA
E. For current limit at other di/dt values, refer to Figure 23.
F. TNY274 does not set an increased current limit value, but with a 10 μ F BP/M pin capacitor the current limit is the same as with a
1 μ F BP/M pin capacitor (reduced current limit value).
G. This parameter is derived from characterization.
H. This parameter is derived from the change in current limit measured at 1X and 4X of the di/dt shown in the I LIMIT speci?cation.
I.
I DSS1 is the worst case OFF state leakage speci?cation at 80% of BV DSS and maximum operating junction temperature. I DSS2 is a
typical speci?cation under worst case application conditions (recti?ed 265 VAC) for no-load consumption calculations.
J. Breakdown voltage may be checked against minimum BV DSS speci?cation by ramping the DRAIN pin voltage up to but not
exceeding minimum BV DSS .
K. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to frequency).
17
www.powerint.com
Rev. I 01/09
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