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| AAT3169_08 Datasheet, PDF (4/13 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications | |||
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SwitchRegTM
PRODUCT DATASHEET
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
Input Power Supply
VIN
Operation Range
ICC
Operating Current
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
TSS
FCLK
EN/SET
Soft-Start Time
Clock Frequency
VEN(L)
VEN(H)
TEN/SET LO
TEN/SET_HI_MIN
TEN/SET_HI_MAX
TOFF
TLAT
IEN/SET
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
Conditions
1X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
1.5X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
2X Mode, 3.0 ⤠VIN ⤠5.5, Active,
No Load Current, High Current Mode
1X Mode, 3.0 ⤠VIN ⤠5.5, D6 Active,
No Load Current, Low Current Mode
VEN/SET = 0V
ISET = 20mA, TA = 25°C
ISET = 2.4mA, TA = 25°C
ISET = 400µA, TA = 25°C
VF:D1:D6 = 3.6V
ISET = 20mA
VIN = 2.7V
VIN = 5.5V
Min
2.7
-10
-20
-20
1.4
0.3
-1
Typ Max Units
5.5
V
0.3
1
mA
1
65
90
µA
1
µA
10
20
%
20
0.5
1
%
150
mV
100
µs
1000
kHz
0.4
V
V
75
µs
50
ns
75
µs
500
µs
500
µs
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 correla-
tion with statistical process controls.
2. Current matching is defined as the deviation of any sink current from the average of all active channels.
4
www.analogictech.com
3169.2008.03.1.3
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