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| AAT3172 Datasheet, PDF (4/15 Pages) Advanced Analogic Technologies – High Current LED Flash Driver Charge Pump IC | |||
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AAT3172
High Current LED Flash Driver Charge Pump IC
Electrical Characteristics1
CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are
TA = 25°C, VIN = 3.6V.
Symbol Description
Conditions
Min Typ Max Units
Power Supply
VIN
VOUT(MAX)
Input Voltage Range
Maximum Output Voltage
ON/OFF Standby Mode, Code
Address = 4, Data = 2
2.7
5.5 V
5.5
V
10
µA
ICC
ISHDN(MAX)
IOUT(MAX)2
I(D-Match)
Operating Current
VIN Pin Shutdown Current
Maximum Output Current
Current Matching Between
Outputs; High Current
1X, No Load Current
3.0 ⤠VIN ⤠5.5, 1.5X Mode, No Load Current
3.0 ⤠VIN ⤠5.5, 2X Mode, No Load Current
EN = 0
VF = 3.6V
VIN = 3.6V, TA = 25°C, 428mA
Code Address = 3, Data = 2;
Code Address = 0, Data = 4
300
2.0 4.0 mA
3.0 6.0
1.0 µA
600
mA
8
%
I(D-Match)
Current Matching Between
Outputs; Low Current
VIN = 3.6V, TA = 25°C, 100mA
Code Address = 3, Data =1;
Code Address = 0, Data = 1
8
%
IDX
FCLK
VREG
TSS
EN/SET
Output Current Accuracy
Clock Frequency
Voltage Mode Regulation
Soft-Start Time
TA = 25°C, Code 1, HI Scale
EN/SET Code Address = 6, Data = 2
270
330 mA
1
MHz
4.1 4.5 4.9 V
200
µs
VIL
VIH
TEN/SET LO
TEN/SET HI MIN
TEN/SET HI MAX
TOFF
TLAT
Input Current
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
VIN = 2.7V
VIN = 5.5V
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
0.4 V
1.4
V
0.3
60 µs
50
ns
60 µs
500 µs
500 µs
-1
1 µA
1. The AAT3172 is guaranteed to meet performance specifications from 0°C to 70°C. Specification over the -40°C to +85°C operating
temperature range is assured by design, characterization, and correlation with statistical process controls.
2. Mounted on an FR4 board.
4
3172.2006.05.1.5
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