XC9502 TOREX SEMICONDUCTOR LTD., XC9502 Datasheet - Page 5

• Manufacturer Part Number: XC9502
• Description: Xc9502 Xc9502 Series 2ch. Step-up / Down Dc/dc Controller Ics.
• Manufacturer: TOREX SEMICONDUCTOR LTD.

■ELECTRICAL CHARACTERISTICS (Continued)
NOTE:
Unless otherwise stated, V
Output 2 Characteristics: Step-Down Controller
Output 1 Characteristics: Step-Up Controller
XC9502B093
Unless otherwise stated, V
Unless otherwise stated, V
Operation Start Voltage (*2)
EXT1 "High" ON Resistance
EXT2 "High" ON Resistance
EXT1 "Low" ON Resistance
Minimum Operating Voltage
EXT2 "Low" ON Resistance
Output Voltage Range (*3)
Oscillation Start Voltage2
PWM1, 2 "High" Current
PWM1, 2 "Low" Current
Maximum Duty Ratio 2
Minimum Duty Ratio 2
Maximum put Voltage
Oscillation Frequency
EN1, 2 "High" Voltage
EN1, 2 "High" Current
FB1, 2 "High" Current
PWM1 "High" Voltage
PWM2 "High" Voltage
EN1, 2 "Low" Voltage
EN1, 2 "Low" Current
PWM1 "Low" Voltage
FB1, 2 "Low" Current
PWM2 "Low" Voltage
Maximum Duty Ratio
Minimum Duty Ratio
Supply Voltage (*1)
Supply Current 1-1
Supply Current 1-2
Supply Current 1-3
Supply Current 1-4
PFM Duty Ratio 2
Stand-by Current
*1 : Although the IC's step-up operations start from a V
*2 : Although the IC's switching operations start from a V
*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
Supply Current 1
Supply Current 2
Soft-Start Time 2
PFM Duty Ratio
Efficiency 2 (*4)
Efficiency (*4)
Soft-Start Time
PARAMETER
PARAMETER
PARAMETER
FB1 Voltage
FB2 Voltage
≧ 2.0V. Therefore, a V
(FB1) should be connected to V
chip disable. Once output voltage V
Common Characteristics
DD
DD
DD
=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V
=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, V
=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, V
MAXDTY1
PFMDTY1
MAXDTY2
MINDTY1
MINDTY2
SYMBOL
SYMBOL
SYMBOL
P
V
R
R
R
V
V
R
V
V
FOSC
V
V
EFFI1
FMDTY2
EFFI2
I
V
I
I
I
I
I
OUTSET
V
V
EXTBH1
EXTBL1
PWMH1
PWMH1
EXTBH2
PWMH2
PWMH2
PWMH
PWML
V
V
T
V
T
EXTBL2
DD1-1
DD1-2
DD1-3
DD1-4
I
V
I
I
I
I
I
DD
V
ST1-1
ST2-1
ENH
INmin
DD1
DD2
STB
ENL
FBH
ENH
SS1
SS2
ENL
FBL
FB1
FB2
DD
IN
of more than 2.0V is recommended when V
OUT1
Same as I
V
V
V
V
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
Same as I
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
Using Tr: 2SD1628
I
V
FB1=0V
Same as I
No Load, V
I
N-ch MOSFET: XP161A1355P
V
FB1=0, EXT1=V
EN1=FB2=0V, EXT1=0.4V
No Load
No Load
V
Same as I
Same as I
No Load, V
I
P-ch MOSFET: XP162A12A6P
V
EN2=0, EXT2=V
FB2=0V, EXT2=0.4V
No Load
No Load
OUT1
OUT1
OUT
OUT2
. With operations from V
DD
DD
IN
DD
DD
DD
OUT1
IN
OUT2
≧0.9V, I
=3.0V, I
=3.0V, V
≠V
≧0V, I
≠V
=V
=130mA
=1.0mA, R
=250mA
is more than 2.0V, the EN2 pin should be set to chip enable.
×0.95V, EN1=0V→0.65V
×0.95V, EN2=0V→0.65V
OUT1
OUT1
OUT1
DD1
DD1
DD1
DD2
DD1
DD2
OUT1, 2
OUT2
PWM1
PWM2
OUT1, 2
: I
IN
, EN1=EN2=0V
OUT1
=1.5V, I
CONDITIONS
CONDITIONS
CONDITIONS
DD
=10mA
FB11
=0V
DD
=0V
DD
IN
=1mA
of 0.8V, the output voltage and switching frequency are stabilized at V
=1mA
=1mA
-0.4V
of 0.9V, the IC's power supply pin (V
-0.4V
=200kΩ, R
OUT1
=10mA
IN
=0.9V, the 2nd channel's (output 2) EN2 pin should be set to
FB12
V
V
V
V
=75kΩ
OUT1
OUT2
OUT1
OUT2
DD
is supplied from V
0.900
0.882
(FOSC=300kHz)
MIN.
MIN.
MIN.
0.65
10.0
0.65
IN
100
255
5.0
5.0
0.7
2.0
0.9
0.9
2.0
0.9
75
22
22
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
=1.8V
IN
=5.0V
0.900
0.900
TYP.
TYP.
TYP.
10.0
10.0
DD
100
100
300
1.0
30
92
28
22
80
60
70
70
80
30
85
28
22
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
IN
) and output voltage monitor pin
or other power sources.
0.918
0.900
MAX.
MAX.
MAX.
-0.50
-0.50
-0.50
10.0
10.0
0.20
0.50
0.50
0.50
20.0
0.20
20.0
0.20
VIN
190
150
120
190
150
150
345
V
3.0
0.9
2.0
0.8
2.0
85
38
47
30
38
47
30
−
−
−
−
−
−
−
−
0
0
IN
UNITS
UNITS
UNITS
kHz
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
ms
ms
Ω
Ω
Ω
Ω
%
%
%
%
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
XC9502
Ta=25℃
Ta=25℃
CIRCUIT
CIRCUIT
CIRCUIT
Ta=25℃
①
①
①
②
③
③
③
③
③
③
③
③
③
③
③
③
③
③
③
③
④
②
①
③
③
③
⑤
⑤
⑤
⑥
⑥
⑤
⑤
⑦
①
③
③
⑧
⑧
⑧
⑥
⑥
⑧
⑧
Series
5/43
DD