XC9502
Series
■ELECTRICAL
CHARACTERISTICS
XC9502B092
Common Characteristics
SYMBOL
V
DD
V
IN
V
OUTSET
I
DD1
I
DD1-1
I
DD1-2
I
DD1-3
I
DD1-4
I
DD2
I
STB
FOSC
V
ENH
V
ENL
I
ENH
I
ENL
I
PWMH
I
PWML
I
FBH
V
FBL
PARAMETER
Supply Voltage (*1)
Maximum Input Voltage
Output Voltage Range (*3)
Supply Current 1
Supply Current 1-1
Supply Current 1-2
Supply Current 1-3
Supply Current 1-4
Supply Current 2
Stand-by Current
Oscillation Frequency
EN1, 2 "High" Voltage
EN1, 2 "Low" Voltage
EN1, 2 "High" Current
EN1, 2 "Low" Current
PWM1, 2 "High" Current
PWM1, 2 "Low" Current
FB1, 2 "High" Current
FB1, 2 "Low" Current
CONDITIONS
(FOSC=180kHz)
MIN.
2.0
10.0
0.9
0.9
2.0
0.9
−
−
−
−
−
−
−
153
0.65
−
−
−
−
−
−
−
TYP.
−
−
−
−
−
−
70
60
50
70
60
60
1.0
180
−
−
−
−
−
−
−
−
MAX.
10.0
−
−
VIN
10.0
V
IN
160
120
110
160
130
130
3.0
207
−
0.20
0.50
-0.50
0.50
-0.50
0.50
-0.50
UNITS
V
V
V
V
V
V
μA
μA
μA
μA
μA
μA
μA
kHz
V
V
μA
μA
μA
μA
μA
μA
Ta=25℃
CIRCUIT
①
①
①
②
③
③
③
③
③
③
③
③
③
③
③
③
③
③
③
③
V
DD
≧2.0V,
I
OUT1, 2
=1mA
V
DD
≠V
OUT1
V
IN
≧0.9V,
I
OUT1, 2
=1mA
V
DD
=V
OUT1
FB1, 2=0V
EN1=3.0V, EN2=0V, FB1=0V
EN2=3.0V, EN1=0V, FB2=0V
FB1=0V, FB2=1.0V
FB1=1.0V, FB2=0V
FB1, 2=1.0V
Same as I
DD1
, EN1=EN2=0V
Same as I
DD1
FB1, 2=0V
FB1, 2=0V
EN1, 2=3.0V
EN1, 2=0V, FB1, 2=3.0V
FB1, 2=3.0V, PWM=3.0V
FB1, 2=3.0V, PWM=0V
FB1, 2=3.0V
FB1, 2=1.0V
V
OUT1
V
OUT2
V
OUT1
V
OUT2
Unless otherwise stated, V
DD
=3.0V, PWM1, 2=3.0V, EN1, 2 =3.0V
Output 1 Characteristics: Step-Up Controller
PARAMETER
FB1 Voltage
Operation Start Voltage1 (*2)
Oscillation Start-up Voltage1
Maximum Duty Ratio1
Minimum Duty Ratio1
PFM Duty Ratio1
Efficiency 1 (*4)
Soft-Start Time1
EXT1 "High" ON Resistance
EXT1 "Low" ON Resistance
PWM1 "High" Voltage
PWM1 "Low" Voltage
SYMBOL
V
FB1
V
ST1-1
V
ST2-1
MAXDTY1
MINDTY1
PFMDTY1
EFFI1
T
SS1
R
EXTBH1
R
EXTBL1
V
PWMH1
V
PWMH1
CONDITIONS
V
DD
=3.0V, V
IN
=1.5V, I
OUT1
=10mA
Using Tr: 2SD1628
I
OUT1
=1.0mA, R
FB11
=200kΩ, R
FB12
=75kΩ
V
DD
≠V
OUT1
: I
OUT1
=1mA
FB1=0V
Same as I
DD1
Same as I
DD2
No Load, V
PWM1
=0V
I
OUT1
=30mA,
N-ch MOSFET: XP161A1355P
V
OUT1
×0.95V,
EN1=0V→0.65V
FB1=0, EXT1=V
DD
-0.4V
EN1=FB2=0V, EXT1=0.4V
No Load
No Load
MIN.
0.882
−
−
−
75
−
22
−
5.0
−
−
0.65
−
TYP.
0.900
−
−
−
80
−
30
85
10.0
28
22
−
−
MAX.
0.918
0.9
2.0
0.8
85
0
38
−
20.0
47
30
−
0.20
UNITS
V
V
V
V
%
%
%
%
ms
Ω
Ω
V
V
CIRCUIT
④
②
①
③
③
③
⑤
⑤
⑤
⑥
⑥
⑤
⑤
Ta=25℃
Unless otherwise stated, V
DD
=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, V
IN
=1.8V
Output 2 Characteristics: Step-Down Controller
PARAMETER
FB 2 Voltage
Minimum Operating Voltage
Maximum Duty Ratio 2
Minimum Duty Ratio 2
PFM Duty Ratio 2
Efficiency 2 (*4)
Soft-Start Time 2
EXT2 "High" ON Resistance
EXT2 "Low" ON Resistance
PWM2 "High" Voltage
PWM2 "Low" Voltage
SYMBOL
V
FB2
V
INmin
MAXDTY2
MINDTY2
PFMDTY2
EFFI2
T
SS2
R
EXTBH2
R
EXTBL2
V
PWMH2
V
PWMH2
CONDITIONS
V
IN
=3.0V, I
OUT2
=10mA
Same as I
DD1
Same as I
DD2
No Load, V
PWM2
=0V
I
OUT2
=250mA
P-ch MOSFET: XP162A12A6P
V
OUT2
×0.95V,
EN2=0V→0.65V
EN2=0, EXT2=V
DD
-0.4V
FB2=0V, EXT2=0.4V
No Load
No Load
MIN.
0.882
−
100
−
22
−
5.0
−
−
0.65
−
TYP.
0.900
−
−
−
30
92
10.0
28
22
−
−
MAX.
0.918
2.0
−
0
38
−
20.0
47
30
−
0.20
UNITS
V
V
%
%
%
%
ms
Ω
Ω
V
V
Ta=25℃
CIRCUIT
⑦
①
③
③
⑧
⑧
⑧
⑥
⑥
⑧
⑧
Unless otherwise stated, V
DD
=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, V
IN
=5.0V
NOTE: *1 : Although the IC's step-up operations start from a V
DD
of 0.8V, the output voltage and switching frequency are stabilized at V
DD
≧
2.0V. Therefore, a V
DD
of more than 2.0V is recommended when V
DD
is supplied from V
IN
or other power sources.
*2 : Although the IC's switching operations start from a V
IN
of 0.9V, the IC's power supply pin (V
DD
) and output voltage monitor pin
(FB1) should be connected to V
OUT1
. With operations from V
IN
=0.9V, the 2nd channel's (output 2) EN2 pin should be set to
chip disable. Once output voltage V
OUT1
is more than 2.0V, the EN2 pin should be set to chip enable.
*3 : Please be careful not to exceed the breakdown voltage level of the external components.
*4 : EFFI={ [ (Output voltage)
×
(Output current) ] / [ (Input voltage)
×
(Input current) ] }
×100
4/43
TOREX [ TOREX SEMICONDUCTOR ]
