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AAT3194 Datasheet, PDF (4/14 Pages) Advanced Analogic Technologies – High Efficiency 1.5X Fractional Charge Pump For White LED Applications
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AAT3194
High Efficiency 1.5X Fractional Charge
Pump For White LED Applications
Electrical Characteristics
VIN = 3.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Input Power Supply
VIN
ICC
ISHDN
IDX
ΔID/ΔVIN
Operation Range
Operating Current
Shutdown Current
Output Current
Output Current Line
Regulation
Current Matching
I(D-Match) Between Any
Two Outputs
η
Efficiency
Charge Pump
tSS
FCLK
EN/SET
Soft-Start Time
Clock Frequency
VEN(L)
VEN(H)
tLO
tHI
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET
High Time
tOFF
Input
Current
EN/SET Off Timeout
EN/SET Input Leakage
Active, No Load Current
EN = 0V
3.0V ≤ VIN ≤ 5.5V, TA = 25°C, All Outputs Max Current
3.0V ≤ VIN ≤ 5.5V
VD1:Dn = 3.6V, VIN = 3.3V
VIN = 3.5V, IOUT(total) = 40mA
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
VIN = 5.5V
Min Typ Max Units
2.7
V
3 mA
1 µA
16 20 24 mA
-3
3 %/V
0.3
%
93
%
400
µs
300
kHz
0.5 V
1.4
V
0.3
75 µs
50
ns
500 µs
-1
1 µA
4
3194.2006.09.1.0
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