AT1453
Preliminary Product Information
Photoflash Capacitor Charger for DSC
Electrical Characteristics
(VCC = 3.3V,T =+25℃, unless otherwise noted.)
a
Parameter
Symbol
Condition
Values
Unit
Min. Typ. Max.
Input Supply Range
2.5
--
5.5
V
V
VCC
VFB
T = +25℃
a
Feedback Voltage
1.080 1.100 1.120
Reference variation with
Temperature
T =-30℃ to +85℃
a
-2
-5
-
-
1
2
5
%
Entire device
Oscillator
Feedback Voltage
line-regulation
VCC=2.5V to 5.5V
CHRGE=GND
Duty=50%,
VFB-Line
ICCS
mV
μA
mA
Standby current
-
400
-
Operating Current
ICC
-
1.0
50
f
A
=50KHz
OSC
40
60 kHZ
Frequency
fosc
B
90 100 110 kHZ
Duty Cycle=0%
Duty Cycle=100%
VSS=0V
Threshold voltage of SS
VSS_0
-
-
0.3
1.1
-
-
V
V
Threshold voltage of SS VSS 100
Soft-Start and Duty
Section
μA
%
Charging current
ISS
TDUTY
ISOURCE
ISINK
0.7 1.0 1.5
Maximum duty cycle
Output source current
Output sink current
Output ON resistor
Output OFF resistor
Active mode Threshold
80
-
83
90
Duty≧95%, OUT=0V
Duty≦5%, OUT=5V
OUT = -15mA
-130 -80 mA
Output Section
65 100
-
mA
Ω
ROH
-
-
18
16
30
25
OUT = 15mA
Ω
ROL
Charge ON/OFF
Section
VONH
2.0
V
V
Disable mode Threshold VONL
0.8
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
4
AIMTRON [ AIMTRON TECHNOLOGY ]
