High Current LED Flash Driver Charge Pump IC
Electrical Characteristics
1
C
IN
= 4.7µF, C
OUT
= 2.2µF, C
1
= C
2
= 1.0µF; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are
T
A
= 25°C, V
IN
= 3.6V.
Symbol
Description
Conditions
Min
2.7
ON/OFF Standby Mode, Code
Address = 4, Data = 2
1X, No Load Current
3.0
≤
V
IN
≤
5.5, 1.5X Mode, No Load Current
3.0
≤
V
IN
≤
5.5, 2X Mode, No Load Current
EN = 0
V
F
= 3.6V
V
IN
= 3.6V, T
A
= 25°C, 428mA
Code Address = 3, Data = 2;
Code Address = 0, Data = 4
V
IN
= 3.6V, T
A
= 25°C, 100mA
Code Address = 3, Data =1;
Code Address = 0, Data = 1
T
A
= 25°C, Code 1, HI Scale
EN/SET Code Address = 6, Data = 2
10
µA
300
2.0
3.0
600
8
4.0
6.0
1.0
mA
µA
mA
%
AAT3170
Typ Max Units
5.5
V
Power Supply
V
IN
Input Voltage Range
I
CC
Operating Current
I
SHDN(MAX)
I
OUT(MAX)
I
(D-Match)
I
(D-Match)
I
DX
F
CLK
V
REG
T
SS
EN/SET
V
IL
V
IH
T
EN/SET LO
T
EN/SET HI MIN
T
EN/SET HI MAX
T
OFF
T
LAT
Input Current
V
IN
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
8
270
4.1
1
4.5
200
330
4.9
%
mA
MHz
V
µs
V
V
µs
ns
µs
µs
µs
µA
Enable Threshold Low
V
IN
= 2.7V
Enable Threshold High
V
IN
= 5.5V
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
0.4
1.4
0.3
50
75
500
500
1
75
-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.
4
3170.2006.11.1.1
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
