參數(shù)資料
型號(hào): DS1670S
廠商: DALLAS SEMICONDUCTOR
元件分類: Timer or RTC
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO20
封裝: SOIC-20
文件頁數(shù): 14/16頁
文件大?。?/td> 312K
代理商: DS1670S
MAX774/MAX775/MAX776
-5V/-12V/-15V or Adjustable, High-Efficiency,
Low IQ Inverting DC-to-DC Controllers
_______________________________________________________________________________________
7
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
CIRCUIT OF FIGURE 2
V+ = 6.5V, ILOAD = 1A, VOUT = -5V
A: OUTPUT RIPPLE, 200mV/div
B: EXT WAVEFORM, 10V/div
C: INDUCTOR CURRENT, 2A/div
OPERATING WAVEFORMS
10
s/div
A
B
C
CIRCUIT OF FIGURE 2
VOUT = -5V, V+ = 4.7V
ILOAD = 1.05A (1A/div)
INDUCTOR CURRENT NEAR FULL LOAD
20
s/div
1A/div
0A
CIRCUIT OF FIGURE 2
ILOAD = 300mA, VOUT = -5V
V+ = 8V, L = 22
H
CONTINUOUS CONDUCTION
AT ONE-HALF CURRENT LIMIT
20
s/div
1A/div
0A
CIRCUIT OF FIGURE 2
V+ = 6V, ILOAD = 1A, VOUT = -5V
A: SHUTDOWN PULSE, 0V TO V+, 5V/div
B: VOUT, 2V/div
ENTRY/EXIT FROM SHUTDOWN
2ms/div
A
B
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PDF描述
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參數(shù)描述
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