ZXSC300
ABSOLUTE MAXIMUM RATING
Supply Voltage
Maximum Voltage Other Pins -0.3 to V +0.3V
-0.3 to 10V
CC
Operating Temperature
Storage Temperature
-40 to 85°C
-55 to 150°C
Power Dissipation
450mW
ELECTRICAL CHARACTERISTICS: Test conditions unless otherwise stated: VCC=1.5V, TAMB=25°C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNITS
1
Efficiency
94
8
%
V
η
V
V
Recommended
supply voltage range
0.8
CC
Minimum startup
and operating
voltage
I
I
=-600µA, V
=-600µA, V
=0.7V
0.8
0.9
0.92
V
CC(min)
DRIVE
DRIVE
DRIVE
DRIVE
=0.7V,
3
T
=-10°C
AMB
2
I
I
I
Quiescent current
0.2
mA
mA
mA
V
Q
Base drive current
V
V
V
= 0.7V, V
= 0.7V, V
= 0V
= 0V
1.5
2
3.6
4
VDRIVE
CC
DRIVE
DRIVE
ISENSE
ISENSE
ISENSE
3
Supply current
V
V
V
High level drive
voltage
= 0V, I
=-0.5mA
V
-0.3
V
CC
VDRIVE(high)
VDRIVE(low)
ISENSE
VDRIVE
CC
Low level drive
voltage
V
= 50mV, I
= 5mA
VDRIVE
0
0.2
24
V
ISENSE
Output current
reference voltage
14
0
19
mV
(threshold)
T
I
0.4
-30
%/°C
CVISENSE
SENSE
2
voltage temp co.
I
I
input current
V
= 0V
ISENSE
-65
µA
µs
ISENSE
SENSE
T
Discharge pulse width
1.2
1.7
3.2
DRV
OPERATING CONDITIONS
SYMBOL
PARAMETER
Recommended operating frequency
CONDITIONS
MIN.
TYP.
MAX.
UNITS
4
F
200
kHz
OSC
1 Application dependent, see reference designs.
2 These parameters guaranteed by design and characterisation
3 Total supply current =IQ + IVDRIVE, see typical characteristics
4 Operating frequency is application circuit dependent. See applications section.
ISSUE 3 - NOVEMBER 2006
2
ZETEX [ ZETEX SEMICONDUCTORS ]
