参数资料
型号: XC9119D10AMR-G
厂商: Torex Semiconductor Ltd
文件页数: 6/18页
文件大小: 0K
描述: IC REG BOOST ADJ 0.31A SOT25-5
标准包装: 1
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 可调至 19.5V
输入电压: 2.5 V ~ 6 V
频率 - 开关: 1MHz
电流 - 输出: 310mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
包装: 标准包装
供应商设备封装: SOT-25
其它名称: 893-1165-6
XC9119D10A Series
■ OPERATIONAL EXPLANATION (Continued)
<CE/SS (Pin No. 4): Chip Enable / Soft-Start Pin>
Pin No. 4 can be used as in either chip enable (CE) pin or soft-start (SS) pin. The IC takes about 5ms at most to attain the setting
voltage after starting operation (CE ‘H’) even though the R SS is 0 Ω and the C SS is not connected.
Soft-start function is good for setting a longer time than the start-up time when the R SS is 0 Ω and the C SS is not connected.
Soft-start operates while the CE pin voltage increases from 0V to around 1.9V. The following equation is used with the values of
Vcont voltage, the R SS and the C SS .
T = - C SS x R SS x In {(Vcont – 1.6) / Vcont}
● Start-up waveform
R SS =0 Ω , No C SS , V IN =3.6V, V OUT =15V, I OUT =3mA
when the R SS is 0 Ω and the C SS is not connected
1ch: V OUT
0V (1ch) ?
0V (2ch) ?
2ch: CE
Time:500uS/div.
1ch:5V/div., 2ch:2V/div.
Ex.) When C SS =0.1uF, R SS =220k Ω , Vcont=5V,
T= - 0.1e – 6 x 220e3 x In{(5-1.6)/5} = 8.48ms
R SS
CE/SS Pin
Ex.) Reference Circuit 1: N-ch Open Drain
Vcont
C SS
Vcont
CE
Vref
Error Amp.
ON/OFF
Signal
R SS
CE/SS Pin
C SS
Ex.) Reference Circuit 2: CMOS Logic (Low Supply Current)
Vcont
ON/OFF
Signal
R SS
CE/SS Pin
C SS
Ex.) Reference Circuit 3: CMOS Logic (Low Supply Current), Quick-Off
Vcont
R SS
CE/SS Pin
6/18
ON/OFF
Signal
C SS
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