AAT3172 View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
MFG CO.
'AAT3172' PDF : 15 Pages View PDF
ChargePumpTM
PRODUCT DATASHEET
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
Power Supply
VIN
Input Voltage Range
VOUT(MAX)
Maximum Output Voltage
ICC
Operating Current
ISHDN(MAX)
I2
OUT(MAX)
I(D-Match)
I(D-Match)
IDX
FCLK
VREG
TSS
EN/SET
VIL
VIH
TEN/SET LO
TEN/SET HI MIN
TEN/SET HI MAX
TOFF
TLAT
Input Current
VIN Pin Shutdown Current
Maximum Output Current
Current Matching Between
Outputs; High Current
Current Matching Between
Outputs; Low Current
Output Current Accuracy
Clock Frequency
Voltage Mode Regulation
Soft-Start Time
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
ON/OFF Standby Mode, Code Address = 4, Data = 2
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
VIN = 3.6V, TA = 25°C, 100mA; Code Address = 3,
Data =1; Code Address = 0, Data = 1
TA = 25°C, Code 1, HI Scale
EN/SET Code Address = 6, Data = 2
VIN = 2.7V
VIN = 5.5V
Min Typ Max Units
2.7
5.5
V
5.5
V
10
µA
300
2.0 4.0
mA
3.0 6.0
1.0
µA
600
mA
8
%
8
270
330
1
4.1 4.5 4.9
200
%
mA
MHz
V
µs
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
www.analogictech.com
3172.2008.04.1.6
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