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ZXLD1321 датащи(PDF) 7 Page - Diodes Incorporated

номер детали ZXLD1321
подробное описание детали  Boost mode DC-DC converter for LED driving with 1A
PDF  20 Pages
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производитель  DIODES [Diodes Incorporated]
домашняя страница  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1321 датащи(HTML) 7 Page - Diodes Incorporated

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ZXLD1321
Issue 1 - January 2008
7
www.zetex.com
© Zetex Semiconductors plc 2008
High-side current monitor
Reference current monitor
LED thermal control circuit (TADJ) parameters
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VM_VIN
Supply voltage
3
18
V
VMON
Sense voltage
=V(M_VIN) – V(M_LOAD)
0
100
200
mV
IM_LOAD
Input current
Measured into M_LOAD pin
0.08
1
µA
TCO
(MON)
Temperature coefficient
VMON=10mV
VMON=100mV
370
150
ppm/
K
BW
Bandwidth
VMON=10mV
VMON=100mV
350
2.5
KHz
MHz
Gm
Transconductance
Iout/ VMON
1
mA/V
Acc
Accuracy
RM = 0.1
Ω
VMON = 100mV
-3
3
%
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VADJ
Adjust Voltage
0
500
mV
TCO
(MON)
Temperature Coefficient
VADJ=50mV
VADJ=500mV
160
200
ppm/
K
BW
Bandwidth
VADJ=50mV
VADJ=500mV
275
3
KHz
MHz
Gm
Transconductance
Iout/ VADJ
200
µA/V
Acc
Accuracy
VADJ=500mV
-3
3
%
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VTADJH
Upper threshold voltage
Onset of output current
reduction (VTADJ falling)
75
mV
VTADJL
Lower threshold voltage
Output current reduced to
<10% of set value
(VTADJ falling)
50
mV
Gm(TADJ)
Transconductance
Iout/ VTADJ
4
mA/V



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