參數(shù)資料
型號: UPD168113
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 馬鞍山集成電路
文件頁數(shù): 26/50頁
文件大?。?/td> 771K
代理商: UPD168113
Data Sheet S16423EJ2V0DS
26
μ
PD168113
11.4.3 Output current value setting
Data of D3 to D7 sets the current value for constant-current control. These bits select the internal voltage that serves
as a reference with a resolution of 20 mV. The current that flows to the output is { set voltage value/FB x 1000 } .
A voltage lower than 100 mV is fixed to 100 mV, and a voltage exceeding 500 mV is fixed to 500 mV. Therefore, the
reference voltage can be set in a range of 100 to 500 mV. The operation frequency of the output is the frequency
oscillation by the oscillator connected to COSC (100 kHz TYP.).
Example)
The set output current is calculated as follows where FB = 2 k
for constant-current driving at 100 mA.
Set voltage value = 100 (mA) x 2 (k
) /1000 = 200 (mV)
(D7......D3) = (01010)
D7......D3
Reference Voltage (mV)
D7......D3
Reference Voltage (mV)
00000
100
10110
440
00001
100
10111
460
:
:
11000
480
00101
100
11001
500
00110
120
:
:
00111
140
11110
500
:
:
11111
500
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