AAT2803ISK-4.5-T1 AnalogicTech, AAT2803ISK-4.5-T1 Datasheet - Page 4

• Manufacturer Part Number: AAT2803ISK-4.5-T1
• Description: Six-Channel White LED Backlight Charge Pump with Flash
• Manufacturer: AnalogicTech

Electrical Characteristics
V
Typical values are T
1. The AAT2803 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
2. Determined by the average of all active channels.
3. Current matching is defined as the deviation of any sink current from the average of all active channels.
4. Specification applies only to the tri-mode charge pump.
5. Specification applies only to the charge pump doubler.
4
IN
by design, characterization, and correlation with statistical process controls.
Symbol
I
= 3.6V, C
(D-Match)
V
V
I
V
F
SHDN
I
V
T
V
I
I
OUT
EN(H)
EN(L)
OUT
CC
DX
CLK
TH
SS
IN
IN
Description
Operation Range
Operating Current
Shutdown Current
I
Current Matching Between Any
Two Current Sink Inputs
1X to 1.5X or 1.5X to 2X Transition
Threshold at Any D
Output Voltage (Flash Charge
Pump)
Max Continuous Output Current
(Flash Charge Pump)
Max Pulsed Output Current
Soft-Start Time
Clock Frequency
Enable Threshold Low
Enable Threshold High
= C
SINK
OUT
Average Current Accuracy
A
5
= 25°C.
= C
1
= C
2
X
= C
Pin
5
3, 4
3
1
= 1.0μF; T
5
2
V
Conditions
1X Mode, 3.0 ≤ V
No Load Current; EN/SET = V
EN_FL= GND
1.5X Mode, 3.0 ≤ V
No Load Current; EN/SET = V
EN_FL= GND
2X Mode, 3.0 ≤ V
No Load Current; EN/SET = V
EN_FL = GND
V
EN_FL = V
50μA Setting, 1X Mode; EN/SET
= V
EN/SET = 0
I
I
3.0< V
EN_FL = V
V
EN_FL = V
V
I
Backlight Charge Pump
Flash Charge Pump
V
V
A
SET
SET
PULSED
F
OUT_FLASH
IN
IN
IN
IN
= -40°C to +85°C, unless otherwise noted.
:D1:D4 = 3.6V
IN
= 3.3V; V
= 3.6V; V
= 2.7V
= 5.5V
= 30mA, T
= 4.1mA, T
; EN_FL = GND
IN
= 250ms
< 5V, I
IN
IN
IN
= 5V; EN/SET = GND;
OUT
OUT
Six-Channel White LED Backlight
A
OUT
A
= 25°C
= 4.5V;
= 4.5V;
= 25°C
IN
IN
= 120mA;
IN
≤ 5.5, Active,
≤ 5.5, Active,
≤ 5.5, Active,
Charge Pump with Flash
IN
IN
IN
;
;
;
Min
3.69
120
2.7
4.3
1.4
27
Typ
150
300
100
200
0.3
1.0
2.0
2.0
4.1
0.5
4.5
1.0
50
30
Max Units
4.51
5.5
3.0
3.7
4.5
1.0
4.7
0.4
33
2803.2006.04.1.5
1
MHz
mA
mA
mV
mA
μA
μA
μs
V
V
V
V
%