AAT3156ISN-T1 データシートの表示（PDF） - Analog Technology Inc
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AAT3156ISN-T1 Datasheet PDF : 14 Pages
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AAT3156
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 TA = 25°C, VIN = 3.5V.
Symbol Description
Input Power Supply
VIN
Operation Range
ICC
Operating Current
ISHDN
Shutdown Current
IDX
ISINK Current Accuracy2
I(D-Match)
Current Matching Between Any
Two Current Sink Inputs3, 4
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
1.5X Mode, 3.0 ≤ VIN ≤ 5.5, Active,
No Load Current
2X Mode, 3.0 ≤ VIN ≤ 5.5, Active,
No Load Current
50µA Setting, 1X Mode
EN/SET = 0
ISET = 30mA, TA = 25°C
ISET = 4.1mA, TA = 25°C
VF:D1:D4 = 3.6V
ISET = 20mA
VIN = 2.7V
VIN = 5.5V
Min
2.7
27
3.69
1.4
0.3
-1
Typ
0.3
1
2.0
50
30
4.1
0.5
150
100
1000
50
Max
5.5
1
3
3.7
1
33
4.51
0.4
75
75
500
500
1
Units
V
mA
µA
µA
mA
%
mV
µs
kHz
V
V
µs
ns
µs
µs
µs
µA
1. The AAT3156 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. Determined by the average of all active channels.
3. Current matching is defined as the deviation of any sink current at IOUT = 20mA and 2mA.
4. Specification applies only to the tri-mode charge pump.
4
3156.2005.09.1.2
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