PRODUCT DATASHEET
AAT3170
ChargePumpTM
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
Input Voltage Range
2.7
5.5
V
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
10
300
2.0
3.0
μA
ICC
Operating Current
4.0
6.0
1.0
mA
ISHDN(MAX)
IOUT(MAX)
VIN Pin Shutdown Current
Maximum Output Current
Current Matching Between
Outputs; High Current
Current Matching Between
Outputs; Low Current
μA
mA
VF = 3.6V
600
8
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
I(D-Match)
I(D-Match)
%
%
8
IDX
FCLK
VREG
Output Current Accuracy
Clock Frequency
Voltage Mode Regulation
Soft-Start Time
TA = 25°C, Code 1, HI Scale
270
4.1
330
4.9
mA
MHz
V
1
4.5
200
EN/SET Code Address = 6, Data = 2
TSS
μs
EN/SET
VIL
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
VIN = 2.7V
VIN = 5.5V
0.4
75
V
V
VIH
1.4
0.3
TEN/SET LO
TEN/SET HI MIN
TEN/SET HI MAX
TOFF
μs
ns
μs
μs
μs
μA
50
75
500
500
1
TLAT
EN/SET Latch Timeout
Input Current EN/SET Input Leakage
-1
1. The AAT3170 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.
w w w . a n a l o g i c t e c h . c o m
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3170.2007.11.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
