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| AAT3169 Datasheet, PDF (4/14 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications | |||
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AAT3169
High Efficiency 1X/1.5X/2X Charge
Pump for White LED Applications
Electrical Characteristics1
CIN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C,
VIN = 3.6V.
Symbol Description
Conditions
Min Typ Max Units
Input Power Supply
VIN
Operation Range
2.7
5.5 V
1X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
0.3
ICC
Operating Current
1.5X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
1
mA
2X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
1
1X Mode, 3.0 ⤠VIN ⤠5.5, D6 Active,
No Load Current, Low Current Mode
65 90 µA
ISHDN
Shutdown Current
Current Accuracy
IDX
Low Current Accuracy
I(D-Match)
Current Matching2
VTH
1X to 1.5X or 1.5X to 2X Transition
Threshold at Any ISINK Pin
Charge Pump Section
EN/SET = 0
ISET = 20mA, TA = 25°C
ISET = 2.4mA, TA = 25°C
ISET = 400µA, TA = 25°C
VF:D1:D6 = 3.6V
ISET = 20mA
1
µA
-10
10
-20
20
%
-20
20
0.5 1
%
150
mV
TSS
FCLK
EN/SET
Soft-Start Time
Clock Frequency
100
µs
1000
kHz
VEN(L)
Enable Threshold Low
VEN(H)
Enable Threshold High
TEN/SET LO EN/SET Low Time
TEN/SET_HI_MIN Minimum EN/SET High Time
TEN/SET_HI_MAX Maximum EN/SET High Time
TOFF
EN/SET Off Timeout
TLAT
EN/SET Latch Timeout
IEN/SET
EN/SET Input Leakage
VIN = 2.7V
VIN = 5.5V
0.4 V
1.4
V
0.3
75 µs
50
ns
75 µs
500 µs
500 µs
-1
1
µA
1. The AAT3169 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
2. Current matching is defined as the deviation of any sink current from the average of all active channels.
4
3169.2006.04.1.0
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