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ZXSC300
ABSOLUTE MAXIMUM RATING
Supply Voltage -0.3 to 10V
Maximum Voltage Other Pins -0.3 to V CC +0.3V
Operating Temperature
Storage Temperature
-40 to 85°C
-55 to 150°C
Power Dissipation 450mW
ELECTRICAL CHARACTERISTICS: Test conditions unless otherwise stated: V CC =1.5V, T AMB =25°C
SYMBOL
η
V CC
PARAMETER
(1)
Efficiency
Recommended
supply voltage range
CONDITIONS
MIN.
0.8
TYP.
MAX. UNITS
94
%
8
V
V CC(min)
I Q
I VDRIVE
Minimum startup
and operating
voltage
Quiescent current (2)
Base drive current
I DRIVE =-600μA, V DRIVE =0.7V
I DRIVE =-600μA, V DRIVE =0.7V,
T AMB =-10°C (3)
V DRIVE = 0.7V, V ISENSE = 0V
1.5
0.8
0.9
0.2
0.92
3.6
V
mA
mA
I CC
Supply current
(3)
V DRIVE = 0.7V, V ISENSE = 0V
2
4
mA
V VDRIVE(high)
V VDRIVE(low)
High level drive
voltage
Low level drive
voltage
V ISENSE = 0V, I VDRIVE =-0.5mA
V ISENSE = 50mV, I VDRIVE = 5mA
V CC -0.3
0
V CC
0.2
V
V
V ISENSE
(threshold)
T CVISENSE
Output current
reference voltage
I SENSE
voltage temp co. 2
14
19
0.4
24
mV
%/°C
I ISENSE
T DRV
I SENSE input current
Discharge pulse width
V ISENSE = 0V
1.2
0
-30
1.7
-65
3.2
μA
μs
OPERATING CONDITIONS
SYMBOL
F OSC
PARAMETER
Recommended operating frequency
(4)
CONDITIONS
MIN.
TYP.
MAX.
200
UNITS
kHz
1
2
3
4
Application dependent, see reference designs.
These parameters guaranteed by design and characterisation
Total supply current =I Q + I VDRIVE , see typical characteristics
Operating frequency is application circuit dependent. See applications section.
2
ISSUE 4 - SEPTEMBER 2007
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