CRD
Description
SDH SERIES CRD_Datasheet
SDH SERIES CRD
DESCRIPTION
SDH series current regulative diode (CRD) is based on Silan’s planar JFET process.
It features low start-up stabilized current supply voltage, stable constant-current characteristics and high forward breakdown voltage for its advanced process and smart design.
SDH series CRD has powerful anti-interference capacity of surge current between the anode and cathode, and no other assistant components are needed in application.
SDH series CRD supplies constant current to an electric circuit and is widely used in the constant-current LED driver, modules in phone circuitry, etc.
It is available in SOD-123, SOT-223-3L and TO-92-3L packages.
FEATURES
∗ Low start-up stabilized current supply voltage ∗ High dynamic impedance ∗ Constant-current range: 1mA-40mA.
∗ Be paralleled for current extension.
∗ Negative temperature coefficient for LED protection under
high temperature
NOMENCLATURE
ORDERING INFORMATION
Part No.
SDHXXXSTR SDHXXXHTR SDHXXXBTR
Package SOD-123 SOT-223-3L TO-92-3L
Marking XXXS
SDHXXXH XXXB
Material Pb free Pb free Pb free
Packing Tape&Reel Tape&Reel
AMMO
HANGZHOU SILAN MICROELECTRONICS CO.
,LTD
Http://www.
silan.
com.
cn
REV:1.
1
2011.
01.
05 Page 1 of 7
SDH SERIES CRD_Datasheet
ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, Tc=25°C)
Characteristics
Power Dissipation
Chip-To-Ambient Thermal Resistance Maximum Operating Voltage Operating And Storage Junction Temperature
Symbol
PD
RθJA Vmax Tstg
Range
SOD-123
350
TO-92-3L
200
SOT-223-3L
100
300
See the table below
-30~+150
Unit mW mW mW °C/W
V
°C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TC=25°C)
Specifica -tion
Constant current rangenote
Test voltage
Ip(mA)
102 10V 0.
88~1.
32
152 10V 1.
28~1.
72
202 10V 1.
68~2.
32
272 10V 2.
28~3.
10
352 10V 3.
00~4.
10
452 10V 3.
90~5.
10
562 10V 5.
00~6.
50
822 10V 6.
56~9.
84
103 10V
8~12
123 10V 9.
6~14.
4
153 10V
12~18
183 10V
16~20
213 10V
18~24
253 10V
22~28
303 10V
27~33
N...
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