CL525.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 CL525 데이타시트 다운로드

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Supertex inc.
CL525
Linear, Fixed Constant Current
LED Driver
Features
25mA ±10% constant current drive
1.0V dropout
90V rating for transient immunity
Temperature compensated
4.75 - 90V supply range
Applications
Specialty lighting
Low voltage signage
General Description
The CL525 is a fixed, linear current regulator designed for
driving LEDs at 25mA. With a maximum rating of 90V, it is able
to withstand transients without the need for additional transient
protection circuitry. It is ideally suited for applications employing
single or multiple LEDs.
The minimum dropout voltage of 1.0V accommodates extra
LEDs, permits lower supply voltages, and provides more
efficient operation.
The CL525 is offered in TO-252(D-PAK) and TO-92 packages.
Typical Application Circuit
VIN
4.75 – 90V
100nF
20mA
VDD
20mA
Control
OUT
CL525
GND
Doc.# DSFP-CL525
A052013
Supertex inc.
www.supertex.com

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Ordering Information
Part Number
Package Options Packing
CL525K4-G
TO-252 (D-PAK) 2000/Reel
CL525N3-G
TO-92
1000/Bag
CL525N3-G P002 TO-92
2000/Reel
CL525N3-G P003 TO-92
2000/Reel
CL525N3-G P005 TO-92
2000/Reel
CL525N3-G P013 TO-92
2000/Reel
CL525N3-G P014 TO-92
2000/Reel
-G denotes a lead (Pb)-free / RoHS compliant package
Refer to ‘P0xx’ Tape & Reel Specs for P002, P003, P005, P013, and P014
TO-92 Taping Specifications and Winding Styles
Absolute Maximum Ratings
Parameter
Value
Supply voltage, VDD
Output voltage, VOUT
Operating junction temperature
-0.5V to +100V
-0.5V to +100V
-40°C to +125°C
Storage temperature
-65°C to +150°C
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
Continuous operation of the device at the absolute rating level may affect
device reliability. All voltages are referenced to device ground..
Pin Configurations
GND
CL525
VDD
OUT
TO-252 (D-PAK)
VDD
GND
OUT
TO-92
Product Marking
Si YYWW
CL525K4
LLLLLLL
YY = Year Sealed
WW = Week Sealed
L = Lot Number
= “Green” Packaging
Package may or may not include the following marks: Si or
TO-252 (D-PAK)
SiCL
525
YYWW
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
Package may or may not include the following marks: Si or
TO-92
Typical Thermal Resistance
Package
θja
TO-252 (D-PAK)
81OC/W*
TO-92
132OC/W*
Notes:
1. Thermal considerations may limit voltage to less than 90V.
* Mounted on JEDEC test PCB (2s 2p)
Recommended Operating Conditions (all voltages with respect to GND pin)
Sym Parameter
Min Typ Max Units Conditions
VDD
VOUT
TJ
CDD
Supply voltage
Voltage at OUT pin1
Junction temperature
VDD bypass capacitor
4.75 - 90 V ---
1.0 - 90 V ---
-40 - 125 oC ---
100 -
- nF ---
Doc.# DSFP-CL525
A052013
Supertex inc.
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CL525
Electrical Characteristics
(Over recommended operating conditions. TA = 25OC unless otherwise specified. All voltages with respect to GND pin)
Sym Parameter
Min Typ Max Units Conditions
IDD Current into VDD pin
IOUT Current into OUT pin
IOUT(OFF)
VDD(OFF)
tON
tOFF
Current into OUT pin with VDD pin open
Voltage at VDD to shut off LED current
VDD applied on time
VDD removed off time
- - 1.0 mA ---
22.5 25 27.5 mA 1.0V < VOUT < 90V
- - 27.5
VOUT <1.0V
- - 10 µA VDD = open
- - 1.0 V IOUT < 10µA
- - 100 µs ---
- - 100 µs ---
Temperature Effects
1.02
1.00
VOUT = 90V, 100ms
VOUT = 1.0V
0.98
0.96
0.94
0.92 -40
-50
25
0 50
120
100
Junction Temperature (OC)
150
Application Circuits
Switched LED
VIN
4.75 – 90V
100nF
VDD
IOUT
25mA
Control
OUT
Seperate LED Supply
(VOUT may be higher or lower than VDD.)
VDD
VIN
VDD
25mA
Control
OUT
GND
GND
Doc.# DSFP-CL525
A052013
Supertex inc.
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Application Circuits (cont.)
Ground Referenced LEDs
VIN
100nF
CL525
VDD
25mA
Control
OUT
VLED + 4.75V ≤ VIN ≤ VLED + 90V
ILED = IOUT + IDD
GND
Pin Description
Pin #
TO-252
D-PAK
(K4)
TO-92
(N3)
11
32
43
Name
Description
VDD
OUT
GND
Supply voltage for the CL525. Bypass locally with a 100nF capacitor to
ground.
Constant current output (sink).
Circuit common.
Doc.# DSFP-CL525
A052013
Supertex inc.
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3-Lead TO-252 D-PAK Package Outline (K4)
b3
E E1
4 L3
CL525
A
c2
θ1
D1
H
D
12 3
Front View
Note 1
L4 L5
b2
e
b
Rear View
View B
Side View
Gauge
Plane
L2
θ
L
L1
View B
A1 Seating
Plane
Note:
1. Although 4 terminal locations are shown, only 3 are functional. Lead number 2 was removed.
Symbol
A A1 b b2 b3 c2 D D1 E E1 e H L L1 L2 L3 L4 L5 θ θ1
Dimen-
sion
(inches)
MIN .086 .000* .025 .030 .195 .018 .235 .205 .250 .170
.370 .055
.035 .025* .045 0O 0O
NOM -
-
-
-
-
- .240 -
-
-
.090
BSC
-
.060
.108
REF
.020
BSC
-
-
- --
MAX .094 .005 .035 .045 .215 .035 .245 .217* .265 .182*
.410 .070
.050 .040 .060 10O 15O
JEDEC Registration TO-252, Variation AA, Issue E, June 2004.
* This dimension is not specified in the JEDEC drawing.
Drawings not to scale.
Supertex Doc. #: DSPD-3TO252K4, Version E041309.
Doc.# DSFP-CL525
A052013
Supertex inc.
5 www.supertex.com