AAT2848 Analogic Corporation, AAT2848 Datasheet - Page 5

• Manufacturer Part Number: AAT2848
• Manufacturer: Analogic Corporation

ChargePump
ChargePump
Electrical Characteristics
V
T
2848.2008.05.1.0
2848.2008.05.1.0
A
BENS and FENS Logic Control
IN
t
t
t
I
t
Symbol
BENS(HI_MIN)
BENS(HI_MAX)
t
FENS(HI_MAX)
t
BENS
FENS(HI_MIN)
t
t
= -40°C to +85°C, unless otherwise noted. Typical values are T
V
t
V
BENS(LOW)
t
BENS(OFF)
V
V
BENS(LAT)
FENS(LOW)
FENS(OFF)
FENS(LAT)
= 3.6V; C
t
BENS(L)
BENS(H)
FENS(H)
t
FENS(L)
FLASH
FADE
, I
FENS
,
,
,
,
,
,
,
Description
BENS, FENS Input Low Threshold Voltage
BENS, FENS Input High Threshold Voltage
BENS, FENS Input Leakage Current
Automatic Fade-In/Out Timer
Automatic Flash Disable Time
BENS, FENS Low Time
Minimum BENS, FENS High Time
Maximum BENS, FENS High Time
BENS, FENS Off Timeout
BENS, FENS Latch Timeout
IN
= 4.7μF; C
TM
TM
High-Current Charge Pump For Backlight Display and Flash Applications
High-Current Charge Pump For Backlight Display and Flash Applications
OUT
= 2.2μF; C1 = C2 = 1μF; R
1
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
Conditions
V
BENS Transition High-to-Low or Low-to-
High; DATA1
FENS Transition Low-to-High
BENS
= V
BSET
FENS
= 15kΩ; R
= V
A
IN
= 25°C.
= 5V
FSET
= 14.3kΩ; C
PRODUCT DATASHEET
PRODUCT DATASHEET
FLTMR
AAT2848
AAT2848
Min Typ
1.4
0.3
= 0.33μF; C
-1
2.7
1.3
50
Max
500
500
0.4
FADE
75
75
1
= 47nF;
Units
μA
μs
ns
μs
μs
μs
V
V
s
s
5
5