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XCL205/XCL206/XCL207 Series
■ ELECTRICAL CHARACTERISTICS (Continued)
● XCL205Cxx3AR/XCL206Cxx3AR/XCL207Cxx3AR, f OSC =3.0MHz, Ta=25 ℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS CIRCUIT
Output Voltage
Operating Voltage Range
V OUT
V IN
When connected to external components,
V IN = V CE =5.0V, I OUT =30mA
<E-1>
2.0
<E-2>
-
<E-3>
6.0
V
V
①
①
Maximum Output Current
I OUTMAX
V IN =V OUT(T) +2.0V, V CE =1.0V
When connected to external components
(*9)
600
-
-
mA
①
UVLO Voltage
V UVLO
V CE =V IN ,V OUT =0V,
Voltage which Lx pin holding “L” level
(*1, *11)
1.00
1.40
1.78
V
③
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
Oscillation Frequency
I DD
I STB
f OSC
V IN =V CE =5.0V, V OUT = V OUT(T) × 1.1V
V IN =5.0V, V CE =0V, V OUT = V OUT(T) × 1.1V
When connected to external components,
V IN =V OUT(T) +2.0V,V CE =1.0V, I OUT =100mA
-
-
2550
46
21
0
3000
65
35
1.0
3450
μ A
μ A
kHz
②
②
①
PFM Switching Current
(*12)
I PFM
When connected to external components,
V IN =V OUT(T) +2.0V, V CE = V IN , I OUT =1mA
<E-4>
<E-5>
<E-6>
mA
⑩
PFM Duty Limit
(*12)
DTY LIMIT_PFM
V CE = V IN = V OUT(T) +1.0V, I OUT =1mA
-
200
300
%
①
Efficiency
Lx SW "H" Leakage Current
V IN = V CE = 5.0V, V OUT = 0V,IL X = 100mA
V IN = V CE = 3.6V, V OUT = 0V,IL X = 100mA
V IN = V CE = 5.0V
V IN = V CE = 3.6V
Maximum Duty Cycle
Minimum Duty Cycle
(*2)
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
(*5)
MAXDTY
MINDTY
EFFI
R L ｘ H
R L ｘ H
R L ｘ L
R L ｘ L
I LEAKH
V IN = V CE =5.0V, V OUT = V OUT (T) × 0.9V
V IN = V CE =5.0V, V OUT = V OUT (T) × 1.1V
When connected to external components,
V CE = V IN ＝ V OUT (T) +1.2V, I OUT = 100mA
(*3)
(*3)
(*4)
(*4)
V IN = V OUT =5.0V, V CE =0V, L X =0V
100
-
-
-
-
-
-
-
-
-
<E-7>
0.35
0.42
0.45
0.52
0.01
-
0
-
0.55
0.67
0.66
0.77
1.0
%
%
%
Ω
Ω
Ω
Ω
μ A
③
③
①
④
④
-
-
⑨
Current Limit
(*10)
I LIM
V IN = V CE = 5.0V, V OUT = V OUT (T) × 0.9V
(*8)
900
1050
1350
mA
⑥
Voltage changes Lx to “H” level
Voltage changes Lx to “L” level
Output Voltage
Temperature Characteristics
CE "H" Voltage
CE "L" Voltage
V OUT /
(V OUT ?△ Topr)
V CEH
V CEL
I OUT =30mA
-40 ℃≦ Topr ≦ 85 ℃
V OUT =0V, Applied voltage to V CE ,
(*11)
V OUT =0V, Applied voltage to V CE ,
(*11)
-
0.65
V SS
± 100
-
-
-
6.0
0.25
ppm/ ℃
V
V
①
③
③
I OUT =1mA
Voltage which oscillation
I OUT =1mA
, Voltage which oscillation
frequency becomes f OSC ＜ 2550kHz
Short Lx at 1 Ω resistance
PWM "H" Level Voltage
PWM "H" Level Voltage
CE "H" Current
CE "L" Current
Soft Start Time
Latch Time
(*13)
(*13)
V PWMH
V PWML
I CEH
I CEL
t SS
t LAT
When connected to external components,
(*6),
frequency becomes 2550kHz ≦ f OSC ≦ 3450kHz
When connected to external components,
(*6)
(*13)
V IN = V CE =5.0V, V OUT = 0V
V IN =5.0V, V CE = 0V, V OUT = 0V
When connected to external components,
V CE =0V → V IN , I OUT =1mA
V IN =V CE =5.0V, V OUT =0.8 × V OUT(T)
(*7)
(*13)
-
V IN -
0.25
- 0.1
- 0.1
0.5
1.0
-
-
-
-
0.9
-
V IN - 1.0
-
0.1
0.1
2.5
20
V
V
μ A
μ A
ms
ms
①
①
⑤
⑤
①
⑦
Short Protection
Threshold Voltage
V SHORT
Sweeping V OUT , V IN =V CE =5.0V, Short Lx at
1 Ω resistance, V OUT voltage which Lx becomes “L”
level within 1ms
<E-8>
<E-9> <E-10>
V
⑦
C L Discharge
Inductance Value
Allowed Inductor Current
R DCHG
L
I DC
V IN = 5.0V L X = 5.0V V CE = 0V V OUT = open
Test frequency=1MHz
Δ T=40 ℃
200
-
-
300
1.5
1000
450
-
-
Ω
μ H
mA
⑧
-
-
Test conditions: Unless otherwise stated, V IN =5.0V, V OUT (T) = Nominal Voltage
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage × output current ) / ( input voltage × input current) } × 100
*3: ON resistance ( Ω )= (V IN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10 μ A (maximum) may leak.
*6: The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than V IN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than V IN minus 1.0V and equal to or greater than V CEH .
*7: Time until it short-circuits V OUT with GND via 1 Ω of resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When V IN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=V IN ~V IN -1.2V, “L”=+0.1V~-0.1V
*12: I PFM and DTY LIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: V PWMH and V PWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
6/25
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