参数资料
型号: XC9119D10AMR-G
厂商: Torex Semiconductor Ltd
文件页数: 8/18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
■ TEST CIRCUITS
Circuit ①
Circuit ②
OSC
Circuit ③
A
V IN
Lx
Rpull
A
V IN
Lx
CE
FB
220uF
A
CE
FB
A
A
V IN
1uF
V SS
Vpull
V IN
1uF
V SS
V Lx
V CE
V FB
V CE
V FB
Circuit ④
OSC
10 Ω
300 Ω
100uF/16V
(OS capacitor)
10V
V IN
CE
Lx
FB
R2
4.3k Ω
Vpull
V IN
4.7uF/10V
(ceramic)
VCE
V SS
2SK583
R1
1.1k Ω
0.01uF
(ceramic)
V
47uF/25V
(OS capacitor)
1. The measurement method of Lx On resistance R SWON
Using the circuit ② , Lx On resistance can be measured by adjusting Vpull voltage to set Lx voltage V Lx x 0.4V when the
driver transistor is ON. The oscilloscope is used for measuring the Lx voltage when the driver transistor is ON.
R SWON = 0.4 / {(Vpull – 0.4) / 10}
2. The measurement method of current limit I LIM
Using the circuit ④ , current limit I LIM can be calculate by the equation including Vpull voltage when FB voltage is
decreased while Vpull voltage is adjusted and Lx voltage V Lx when the driver transistor is ON. The oscilloscope is used
for measuring the Lx voltage when the driver transistor is ON.
I LIM =(Vpull – V Lx ) / Rpull
8/18
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