ZXLD1362 データシートの表示（PDF） - Zetex => Diodes
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ZXLD1362 Datasheet PDF : 24 Pages
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A Product Line of
Diodes Incorporated
ZXLD1362
Absolute Maximum Ratings (Note 4)
Symbol
Parameter
Rating
Unit
VIN
Input Voltage
-0.3 to +65
V
VSENSE ISENSE Voltage (Note 5)
+0.3 to -5
V
VLX
LX Output Voltage
-0.3 to +65
V
VADJ
Adjust Pin Input Voltage
-0.3 to +6
V
ILX
Switch Output Current
1.25
A
PTOT
Power Dissipation
(Refer to Package thermal de-rating curve on page 16)
1
W
TST
Storage Temperature
-55 to +150
°C
TJ MAX Junction Temperature
150
°C
Note:
Caution:
4 All voltages unless otherwise stated are measured with respect to GND.
5. VSENSE is measured with respect to VIN.
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings
only; functional operation of the device at conditions between maximum recommended operating conditions and absolute maximum ratings is not
implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time.
ESD Susceptibility
Rating
Unit
Human Body Model
500
V
Machine Model
75
V
Caution:
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when
handling and transporting these devices.
The human body model is a 100pF capacitor discharge through a 1.5kΩ resistor pin. The machine model is a 200pF capacitor discharged directly
into each pin.
Thermal Resistance
Symbol
θJA
ΨJB
Parameter
Junction to Ambient
Junction to Board
Rating
82
33
Unit
°C/W
°C/W
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Units
VIN
Input Voltage Range (Note 6)
6
60
V
ILX
Maximum recommended continuous/RMS switch current
1
A
VADJ
VADJoff
External control voltage range on ADJ pin for DC brightness control (Note 7)
DC voltage on ADJ pin to ensure devices is off
0.3
2.5
V
0.25
V
tONMIN Minimum switch on-time
800
ns
fLXmax Recommended maximum operating frequency (Note 8)
625
kHz
DLX
Duty cycle range
0.01
0.99
TA
Ambient operating temperature range
-40
+125
°C
Notes:
6. VIN > 16V to fully enhance output transistor. Otherwise out current must be derated - see graphs. Operation at low supply may cause excessive
heating due to increased on-resistance. Tested at 7V guaranteed for 6V by design.
7. 100% brightness corresponds to VADJ = VADJ(nom) = VREF. Driving the ADJ pin above VREF will increase the VSENSE threshold and output current
proportionally.
8. ZXLD1362 will operate at higher frequencies but accuracy will be affected due to propagation delays.
ZXLD1362
Document number: DS33472 Rev. 5 - 2
3 of 24
www.diodes.com
May 2012
© Diodes Incorporated
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