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AS3715 Scheda tecnica(PDF) 36 Page - ams AG

Il numero della parte AS3715
Spiegazioni elettronici  Dual Power Path PMIC
PDF  160 Pages
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Produttore elettronici  AMSCO [ams AG]
Homepage  http://www.ams.com
Logo AMSCO - ams AG

AS3715 Scheda tecnica(HTML) 36 Page - ams AG

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Page 36
ams Datasheet, Confidential
Document Feedback
[v1-00] 2014-Sep-10
AS3715 − Detailed Description – Power Management Functions
Parameter
Figure 36:
DCDC SU Parameter
DCDC SU Parameter: Shows the key electrical parameter of the DCDC boost converter.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IVDD
Quiescent Current
Pulse skipping mode
140
μA
VFB
Feedback voltage for
external resistor divider
For constant voltage control
1.20
1.25
1.30
V
VCURR
Feedback voltage for
current sink regulation
CURR1, CURR2, CURR3
0.6
V
IDCDC_FB
Additional tuning current
at FB_SU
Adjustable by software in 1μA
steps
031
μA
Accuracy of feedback
current
@ full scale
-7
7
%
Vrsense_
max
Current limit voltage at
Rsense
E.g.: 0.65A for 0.15Ω sense
resistor
100
mV
RSW
Switch resistance
ON-resistance of external
switching transistor
1Ω
Iload
Load current
At 25V output voltage
0
50
mA
fIN
Switching frequency
Internal CLK frequency/4,
default 1MHz
fclk_int/4
MHz
tMIN_ON
Minimum ON time
130
ns
MDC
Maximum duty cycle
@ 1MHz
91
%



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