05S_1XC9201/9202新規 02.09.12 15:16 ページ 542
XC9201Series
XC9201D09AR
Ta=25℃�
SYMBOL
PARAMETER
CONDITIONS
MIN.
0.8775
20
TYP.
0.900
�
MAX. UNITS CIRCUITS
�
IOUT=300mA
0.9225
�
V
V
q
q
q
t
w
w
w
e
FB Voltage
VFB
VINmax
VINmin
VUVLO
IDD1
Maximum Operating�
Voltage
Minimum Operating�
�
�
2.200
V
Voltage
�
EXT voltage = High
1.0
�
1.400� 2.0
V
U.V.L.O. Voltage
Supply Current 1
Supply Current 2
Stand-by Current
�
115
VIN=4.0V, CE=VIN=FB
220
235
2.0
380
�
μA
μA
μA
kHz
IDD2
VIN=20.0V, CE=VIN, FB=VSS
VIN=4.0V, CE=FB=VSS
RT=10.0kΩ, CT=220pF
�
130�
ISTB
�
0.5�
�
CLK Oscillation �
Frequency
FOSC
�
330�
280
�
Frequency�
ΔFOSC
ΔVIN･FOSC
�
VIN=2.5V～20V
±5
%
%
e
e
Input Stability
�
Frequency Temperature �
VIN=4.0V
�
ΔFOSC
ΔTOPR･FOSC
MAXDTY
MINDTY
ILIM
±5�
Fluctuation
TOPR=－40～+85℃�
�
�
�
Maximum Duty Cycle
Minimum Duty Cycle
Current Limiter�
Voltage
FB=VSS
100
�
%
r
r
y
y
t
t
FB=VIN
�
150
7
0
%
5
VIN pin voltage - ISEN pin voltage
VIN=4.0V, ISEN=4.0V
90
220
13
mV
μA
μA
μA
4.5
－0.1
－0.1
ISEN Current
IISEN
ICEH
CE "High" Current
CE "Low" Current
CE=VIN=20.0V, FB=0V
CE=0V, VIN=20.0V, FB=0V
Existance of CLK Oscillation,
FB=0V, CE：Voltage applied
Dissapearance of CLK Oscillation,
0�
0.1
0.1
�
0�
ICEL
�
�
VCEH
CE "High" Voltage
CE "Low" Voltage
0.6
�
V
V
t
t
�
VCEL
0.2
�
FB=0V、CE：Voltage applied
EXT=VIN－0.4V, CE=FB=VIN *1
EXT=0.4V, CE=VIN, FB=VSS *1
EXT "High"�
REXTH
REXTL
EFFI
�
�
�
5
27�
40
34
�
20
Ω�
Ω�
%
r
r
q
q
ON Resistance
EXT "Low"�
�
24�
ON Resistance
Efficiency (NOTE1)
�
93�
TSS
�
10�
Soft-start Time
Connect CSS and RSS, CE : 0V → 4.0V
ms
CC/GAIN Pin �
�
�
�
RCCGAIN
400�
k�
u
Output Impedance
�
VIN = 4.0V unless specified�
External components : RFB1 = 200kΩ, RFB2 = 100kΩ, CFB = 82pF�
*1 : On resistance = 0.4V / measurement current �
NOTE1 : EFFI = {[(Output Voltage) x (Output Current)] ÷ [(Input Voltage) x (Input Current)]} x 100�
NOTE2 : The capacity range of the condenser used to set the external CLK frequency is 180 ∼ 300pF
542
TOREX [ Torex Semiconductor ]
