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LC5222D Fiches technique(PDF) 2 Page - Sanken electric

No de pièce LC5222D
Description  Hybrid Integrated Circuit
Download  11 Pages
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Fabricant  SANKEN [Sanken electric]
Site Internet  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

LC5222D Fiches technique(HTML) 2 Page - Sanken electric

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Selection Guide
Part
Number
Package
Maximum Input
Voltage
VBB(max)
(V)
Output MOSFET
RDS(ON)(max)
(Ω)
LC5222D
DIP8
250
2.2
LC5225D
450
6
LC5222S
SOP8
250
2.2
LC5225S
450
6
Absolute Maximum Ratings Unless specifically noted, TA is 25°C
Characteristic
Symbol
Notes
Pins1
Rating
Unit
Main Power Supply Voltage
VBB
LC5222D/S
6 – 8
(7 – 8)
250
V
LC5225D/S
450
V
Output Breakdown Voltage
VO(BR)
LC5222D/S
5 – 4
(5, 6 – 4)
250
V
LC5225D/S
450
V
Output Current2
IO
Pulse width ≥ 1 μs
5 – 4
(5, 6 – 4)
0.5
A
PWM Pin Voltage3
VPWM
2 – 8
−0.3 to VZ
V
REF Pin Input Voltage3
VREF
3 – 8
−0.3 to VZ
V
SEN Pin Voltage
VSEN
Pulse width ≥ 1 μs
4 – 8
−0.3 to 4.0
V
Allowable Power Dissipation4,5
PD
LC5222S
LC5225S
On Sanken evaluation PCB
0.85
W
LC5222D
LC5225D
1.73
W
Operating Ambient Temperature
TA
―−40 to 105
°C
Storage Temperature
Tstg
―−40 to 150
°C
Junction Temperature
TJ
150
°C
1
Where the pin numbers differ between the DIP8 and the SOP8 packages, the SOP8 pin number is written in parentheses.
2
The output current value may be restricted based on duty cycle, ambient air temperature, or heat dissipation conditions. In any case, please be sure
to keep from exceeding the junction temperature, TJ.
3
Zener diodes are built-in between the PWM pin and GND, and between the REF pin and GND. VZ is the breakdown voltage of these internal Zener
diodes, and VZ = 6.3 V (typ). In addition, the maximum sink current is 1 mA.
4
Allowable loss, PD , is dependent on the circuit layout of the PCB to be used.
5
Please refer to the Ambient Temperature versus Power Dissipation Curve.
The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC.
Ambient Temperature, TA (°C)
2.0
1.5
1.0
0.5
0
0
25
50
100
75
150
125
Ambient Temperature versus Power Dissipation
On Sanken evaluation PCB
R
θJ-A
= 72
°C/W
R
θJ-A = 147
°C/W
PD = 1.73 W
PD = 0.85 W
SOP
DIP
LC5222D/25D and
LC5222S/25S
2
SANKEN ELECTRIC CO., LTD.
LC5222D/25D_22S/25S-DS
Off-Line DC/DC LED Driver ICs
August 8, 2012


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