ILC6390CM-25 데이터 시트보기 (PDF) - Impala Linear Corporation
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ILC6390CM-25 Datasheet PDF : 9 Pages
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SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Absolute Maximum Ratings (TA = 25°C)
Parameter
VOUT Input Voltage
Voltage on pin LX
Current on pin LX
Voltage on pin EXT
Current on pin EXT
CE Input Voltage
VDD Input Voltage
Continuous Total Power Dissipation
Operating Ambient Temperature
Storage Temperature
Symbol
VOUT
VLX
ILX
VEXT
IEXT
VCE
VDD
PD (SOT-25)
PD (SOT-89)
Topr
Tstg
Ratings
12
12
400
VSS-0.3~VOUT+0.3
±50
12
12
150
500
-30~+80
-40~+125
Units
V
V
mA
V
mA
V
V
mW
°C
°C
Electrical Characteristics ILC6390
VOUT = 5.0V TA = 25°C. Unless otherwise specified, VIN = VOUT x 0.6, IOUT = 50mA. See schematic, fig. 3.
Parameter
Output Voltage
Input Voltage
Oscillation Startup Voltage
Oscillation Hold Voltage
NO-Load Input Current
Supply Current 1 (See Note 2)
Supply Current 2
LX Switch-On Resistance
LX Leakage Current
Duty Ratio 1
Duty Ratio 2
Maximum Oscillation Freq. 1
Maximum Oscillation Freq. 2
Stand = by Current
CE “High” Voltage
CE “Low” Voltage
CE “High” Current
CE “Low” Current
LX Limit Voltage
Symbol
VOUT
VIN
VST
VHLD
IIN
IDD 1
IDD 2
RSWON
ILXL
DUTY 1
DUTY 2
MFO 1
MFO 2
ISTB
VCEH
VCEL
ICEH
ICEL
VLXLMT
Conditions
Test Circuit of Figure 1
IOUT = 1mA
IOUT = 1mA
IOUT = 0mA (See Note 1)
VOUT = 4.75V
VOUT = 5.5V
VOUT = 4.75V, VLX = 0.4
No external components, VOUT =
VLX = 10V
VOUT = 4.75V, Measuring of LX
waveform
VOUT = 4.75V, Measuring of LX
on-time
VOUT = 4.75V, 75% duty
VOUT = 4.75V, 55% duty
VOUT = 4.75V
VOUT = 4.75V, Existance of LX
Oscillation
VOUT = 4.75V, Disappearance of
LX Oscillation
VCE = VOUT x 0.95
VOUT = 4.75V, VCE = 0V
VOUT = 4.75V, fosc > MFO x 2
(See Note 3)
Min
4.875
0.70
70
50
85
153
0.75
0.7
Typ
5.000
0.80
5.3
31.7
2.4
2.8
75
55
100
180
Max
5.125
10
0.9
10.6
63.4
4.8
4.3
1.0
80
60
115
207
0.5
0.20
0.25
-0.25
1.1
Units
V
V
V
V
µA
µA
µA
Ω
µA
%
%
kHz
kHz
µA
V
V
µA
µA
V
Note:
1. The Schottky diode (S.D.), in figure 3 must be type MA735, with Reverse current (IR) < 1.0µA at reverse voltage (VR)=10.0V
2. “Supply Current 1” is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which
results in less average power consumption.
The current that is actually provided by external VIN source is represented by “No-Load Input Current”
3. The switching frequency is determined by the delay time of the internal comparator and MFO1, which sets the min. on-time
Impala Linear Corporation
ILC6390 1.1
(408) 574-3939 www.impalalinear.com
Feb 2001 2
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