AAT3141ITP-T1 Просмотр технического описания (PDF) - Advanced Analogic Technologies
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AAT3141ITP-T1
Advanced Analogic Technologies
AAT3141ITP-T1 Datasheet PDF : 16 Pages
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AAT3141
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Electrical Characteristics 1
CIN=CCP=C1=C2= 1.0µF; TA= -40 - 85°C unless otherwise noted. Typical values are at TA= 25°C, VIN= 3.5V.
Symbol Description
Conditions
Min Typ Max Units
Input Power Supply
VIN
Operation Range
Icc
Operating Current
ISHDN
IDX
I(D-Match)
ηCP
Shutdown Current
Output Current Accuracy 2
Current Matching 3
Charge Pump Section Efficiency
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
2.7
5.5
V
VD1:D4 = 2.0V, CP = 1X
550
µA
No Load Current, CP = 1.5X
35
mA
VIN = 3.5V, EN/SET=0
1
µA
VIN = 3.5V, TA = 25°C
-10
10
%
VD1:D4 = 3.6V, VIN = 3.5V
-3 ±0.5 3
%
VIN = 3.5V, IOUT(TOTAL) = 120mA,
93
%
Measured from IN to CP
50
µs
1
MHz
VIN = 2.7V
VIN = 5.5V
VEN/SET = 5.5V, VIN = 5.5V
0.4
V
1.4
V
0.3
75 µs
50
ns
75 µs
500 µs
500 µs
-1
1
µA
Notes:
1. The AAT3141 is guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and are assured
by design, characterization and correlation with statistical process controls.
2. Codes 2-7 are guaranteed to be within +/-15% of stated current level.
3. Current matching is defined as I(D-Match) = (ID - IAVE)/IAVE
4
3141.2004.07.0.91
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