參數(shù)資料
型號(hào): ML2283CIP
元件分類: 串行ADC
英文描述: Serial I/O 8-Bit A/D Converters
中文描述: 串行I / O 8位A / D轉(zhuǎn)換器
文件頁數(shù): 13/20頁
文件大?。?/td> 357K
代理商: ML2283CIP
ML2280, ML2283
13
CURRENT LIMITING
RESISTOR, I+
15mA
12V
V
CC
V+
GND
I +
28.8k
3.2k
3.2k
I+
15mA
V+
5.5V
SLOPE =
6.9V
1
35k
Figure 10. I-V Characteristic of the Shunt Regulator
SHUNT REGULATOR
A unique feature of the ML2283 is the inclusion of a shunt
regulator connected from V+ terminal to ground which
also connects to the V
CC
terminal (which is the actual
converter supply) through a silicon diode as shown in
Figure 8. When the regulator is turned on, the V+ voltage
is clamped at 11V
BE
set by the internal resistor ratio. The
typical I-V of the shunt regulator is shown in Figure 9.
Figure 9. Shunt Regulator
It should be noted that before V+ voltage is high enough
to turn on the shunt regulator (which occurs at about
5.5V), 35k
W
resistance is observed between V+ and GND.
When the shunt regulator is not used, V+ pin should be
either left floating or tied to GND. The temperature
coefficient of the regulator is –22mV/°C.
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