AAT2842 Analogic Corporation, AAT2842 Datasheet - Page 5

• Manufacturer Part Number: AAT2842
• Manufacturer: Analogic Corporation

Electrical Characteristics
V
values are at T
1. The AAT2842 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
2. Current matching is defined as the deviation of any sink current from the average of all active channels.
2842.2006.10.1.0
Charge Pump Section
Backlight LED Outputs, S
Backlight LED Outputs, S
Flash LED Outputs, S
IN
Symbol
V
T
I
I
I
by design, characterization, and correlation with statistical process controls.
I
V
V
V
BL _ (MAX)
BL _ (MAX)
IN(SHDN)
FL _ (MAX)
ΔI
ΔI
ΔI
IN(TH_H)
SD(HYS)
= 3.6V; C
I
BL_(TH)
BL_(TH)
FL_(TH)
f
I
T
IN(Q)
V
OUT
OSC
(BL _ )
(BL _ )
(FL _ )
SD
IN
Description
IN Operating Voltage Range
IN Operating Current
IN Shutdown Current
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
OUT Maximum Output Current
BL1-BL4, FL1-FL4 Charge Pump R
Mode Transition Hysteresis
Charge Pump Oscillator
Frequency
BL1-BL4 Maximum Current
BL1-BL4 Current Matching
BL1-BL4 Charge Pump Mode
Transition Threshold
BL1-BL4 Maximum Current
BL1-BL4 Current Matching
BL1-BL4 Charge Pump Mode
Transition Threshold
FL1-FL4 Maximum Current
FL1-FL4 Current Matching
FL1-FL4 Charge Pump Mode
Transition Threshold
IN
A
= 4.7µF; C
= 25°C.
2
Cwire Data = 1
2
2
OUT
Cwire Data = 1
Cwire Data = 7
= 2.2µF; C
2
2
2
1
Control and Dual LDO for Backlight and Flash
1
= C
Conditions
1X Mode, 3.0V ≤ V
Load; ENL = AGND, FENS = BENS = IN
1.5X Mode, 3.0V ≤ V
Load; ENL = AGND, FENS = BENS = IN
2X Mode, 3.0V ≤ V
Load; ENL = AGND, FENS = BENS = IN
R
ENL = BENS = FENS = AGND, T
R
V
R
V
R
V
IN
IN
IN
BSET
BSET
BSET
BSET
FSET
2
High-Current Charge Pump with S
= 1.0µF; T
- V
- V
- V
= 280kΩ, V
= 280kΩ, Data 1, 1X Mode
= 280kΩ, Data 1
= 280kΩ, V
= 280kΩ, V
F
F
F
= 1.5V
= 1.5V
= 1.5V
A
= -40°C to +85°C, unless otherwise noted. Typical
IN
IN
IN
IN
IN
- V
- V
- V
IN
≤ 5.5V, Active, No
≤ 5.5V, Active, No
F
F
F
≤ 5.5V, Active, No
= 1.5V
= 1.5V
= 1.5V
A
= 25°C
Min Typ Max Units
135
2.7
8.6
27
140
600
500
150
150
300
0.5
9.6
50
15
30
60
2
1
10.6
165
5.5
1.0
3.0
5.0
5.0
2
33
1
2
4
Cwire™
MHz
mA
mA
mV
mA
mV
mA
mV
mA
mV
µA
µA
°C
°C
%
%
%
V
5