AAT3174IWP-T1 データシートの表示（PDF） - Analog Technology Inc
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AAT3174IWP-T1 Datasheet PDF : 14 Pages
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AAT3174
High Current, High Efficiency Charge Pump
Data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Total Output
(% of IMAX)
100.0
89.1
79.4
70.8
63.1
56.2
50.1
44.7
39.8
35.5
31.6
28.2
25.1
22.4
20.0
0.0
Table 1: Current Level Settings.
The S2Cwire interface records rising edges of the
EN/SET pin and decodes them into 16 individual
current level settings with Code 1 reserved for
maximum current. Once EN/SET has been held in
the logic high state for time TLAT, the programmed
current is seen at the current source outputs and
the internal data register is reset to 0. For subse-
quent current level programming, the number of
rising edges corresponding to the desired code
must be entered on the EN/SET pin.
When EN/SET is held low for an amount of time
greater than TOFF, the AAT3174 enters into shut-
down mode and draws less than 1µA from VIN.
Data and address registers are reset to 0 during
shutdown.
S2Cwire Serial Interface Timing
EN/SET
Data Reg
THI
TLO
T LAT
1
2
n-1
n ≤ 16
0
TOFF
n
0
3174.2006.05.1.2
9
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