AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
Electrical Characteristics
(PVCC1=PVCC2=PVCC3=PVCC4=VCC=3.6V, Ta=+250C)
Values
Parameter
Symbol
Condition
Unit
Min. Typ. Max.
GENERAL
Input Voltage Range
VCC IC Power Input
2.5
2.35
-
-
5.5
2.45
-
V
V
VCC Under Voltage Lockout
UVLO Hysteresis
VUV
VHY
-
-
2.4
100
mV
No Switching,
CH1,CH2 Switch- Off Input
Current
FB1=FB2=0.9V
CTL1=CTL2=3.6V, other
disable
IIN1
-
1.1
1.2
mA
No Switching,
CH1,CH2, CH3(or 4,5,6)
Switch- Off Input Current
FB1=FB2=FB3=0.9V
CTL1=CTL2=CTL3=3.6V,
other disable
All CTL disable,
VCC=3.6V
IIN2
-
-
1.3
1
1.4
10
mA
µA
Shutdown Current
ICC
REFERENCE
Reference Output Voltage
Reference Load Regulation
Reference Line Regulation
VREG IREG =1mA
2.25 2.30 2.35
V
1mA< IREG <5mA
-
-
5
-
10
5
mV
mV
∆VREG1
∆VREG2
2.5<VCC<5.5V
OSC
Frequency
fOSC CT=82pF
-
-
-
500
1
-
10
5
KHz
%
Frequency variation with
Temperature
Frequency variation with
Input Voltage
T =-20°C ~+85°C
∆fOSC1
∆fOSC2
a
VCC =2.5V~5.5V
1
%
CHANNEL 1, 2
PVCC1/2
Input Voltage Range
-
2.5
0.7
-
5.5
1.3
V
µA
V
Normal Operating Soft-Start
Charge Current
ISS1/2 VCC =2.5V~5.5V
T =-20°C ~+85°C
1
FB Regulation Voltage
FB input Current
VFB1/2
0.784 0.8 0.816
a
IFB1/2 FB1/2=0.8V
RCS
-
-
-
-
-
100
nA
V/A
µs
Current-Sense Amplifier
Transresistance
-
-
0.6
120
100
-
-
-
Transconductance
GMEA
Maximum Duty Cycle
DMAX FB1/2=0.7V
%
7F, No.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
4/2/2007 REV:1.1
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
5
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
