ZXLD1321 Ver la hoja de datos (PDF) - Diodes Incorporated.
Número de pieza
componentes Descripción
Fabricante
ZXLD1321
Diodes Incorporated.
ZXLD1321 Datasheet PDF : 20 Pages
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ZXLD1321
DC-DC converter output parameters
Symbol
Toff(100)
Toff(10)
fLXmax
fSU
Parameter
Discharge pulse width
Discharge pulse width
Maximum operating
frequency
Switching frequency in start-
up mode
Conditions
100% output current
10% output current
VIN=1.2V
Switching NPN transistor
Symbol
ISW
IBON(max)
IBON
V(BR)CEO
VCE(sat)
hFE
COBO
t(on)
t(off)
Parameter
Conditions
Average continuous switch
current(c)
Maximum base current into 2V<VIN<18V
switch transistor from internal BIAS pin at 0V
drive circuit(d)
Base current into switch
transistor using external
resistor (RBASE) from BIAS pin
to ground
RBIAS = 1680Ω
Collector-Emitter breakdown IC=10µA
voltage
Collector-Emitter saturation
voltage
IC=0.1A, IB=10mA
IC=2A, IB=50mA(e)
Static forward current transfer IC=200mA, VCE=2V
ratio
IC=2A, VCE=2V
Output capacitance
VCB=10V,f=1MHz
Turn-on time
Ic=0 to IC=2A
VIN=10V
Turn-off time
IC=2A to Ic<100µA
Min Typ Max Units
0.7 1.2 1.7 µs
4
8
12 µs
600 KHz
50
KHz
Min Typ Max Units
2
A
30 50 70 mA
10
mA
20
V
50
mV
120
mV
209
116
64
pF
30
ns
28
ns
NOTES:
(c) Measured under pulse conditions.
(d) This current is measured via the collectors and emitters of the switch with these connected to ground (0V)
(e) Measured under pulse conditions. Peak Current = Ic
Issue 1 - January 2008
6
© Zetex Semiconductors plc 2008
www.zetex.com
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