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SDH562STR Dataheets PDF



Part Number SDH562STR
Manufacturers Silan Microelectronics
Logo Silan Microelectronics
Description CRD
Datasheet SDH562STR DatasheetSDH562STR Datasheet (PDF)

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.

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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 Note: pulse testing for 380μS. Start saturation currentnote Vk [ V ] Ik [ mA ] 1.7 Min.0.8Ip 2.0 Min.0.8Ip 2.3 Min.0.8Ip 2.7 Min.0.8Ip 3.2 Min.0.8Ip 3.7 Min.0.8Ip 4.5 Min.0.8Ip 3.1 Min.0.8Ip 3.5 Min.0.8Ip 3.8 Min.0.8Ip 4.3 Min.0.8Ip 4.6 Min.0.8Ip 5.0 Min.0.8Ip 5.5 Min.0.8Ip 6.0 Min.0.8Ip Max. voltage – current ratio IVMAX/Ip max.1.1 max.1.1 max.1.1 max.1.1 max.1.1 max.1.1 max.1.1 max.1.0 max.1.0 max.1.0 max.1.0 max.1.0 max.1.0 max.1.0 max.1.0 Temperature coefficient [%/°C] Max. voltage Vmax.(V) -0.10~ -0.37 -0.13~ -0.40 -0.15~ -0.42 -0.18~ -0.45 -0.20~ -0.53 -0.25~ -0.45 -0.25~ -0.53 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 -0.25~ -0.45 100 100 100 100 100 100 100 50 50 50 50 50 45 45 45 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.1 2011.01.05 Page 2 of 7 SDH SERIES CRD_Datasheet TYPICAL CHARACTERISTIC CURVE Figure 1. V-A characteristics curve I(mA) Ip 0 VK V(V) Vmax Figure 2. Typical forward characteristics curve 40 30 Pulse test 20 10 SDH123S SDH153S SDH303S SDH822S SDH352S SDH452S SDH272S SDH202S 1 SDH102S ID, constant current (mA) 0.1 0.2 0.3 00..157 2 3 5 170 3200 50 17000 Steady-state constant current IP(mA) Figure 3, Steady-state current & time 15.5 15.0 SDH153S Vak@10V TA=25°C 14.5 14.0 13.5 13.0 12.5 0 5 10 15 20 25 30 Time(S) Figure 5, Steady-state current & time 33 SDH303H Vak@10V 31 TA=25°C 29 27 25 0 5 10 15 20 25 30 Time(S) Steady-state constant current(mA) Steady-state constant current(mA) 0.1 VAK, voltage (VOLTS) Figure 4, Pulse testing constant current & steady-state constant current 14 SOD-123 13 Vak@10V TA=25°C 12 11 10 9 8 7 7 9 11 13 15 17 Pulse testing constant current (mA) Figure 6, Pulse testing constant current & steady-state constant current 35 SOT-223 30 Vak@10V TA=25°C 25 20 15 10 10 15 20 25 30 Pulse testing constant current (mA) 35 Steady-state constant current IP(mA) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.1 2011.01.05 Page 3 of 7 SDH SERIES CRD_Datasheet APPLICATION INFORMATION 1. Temperature characteristics of SDH series CRD Due to SDH series CRD uses the JFET structure and has negative temperature coefficient; more attention should be paid to the test time when the constant current characteristic of CRD is evaluated. If the test time is long, the heat generated will affect the test data. The SDH series constant current values listed in “ELECTRICAL CHARACTERISTICS” table are tested by pulse mode under the conditions that Vak=10V with 380μS test pulse width. The same test conditions are recommended for customers. In “TYPICAL CHARACTERISTICS CURVE”, the relation between steady-state constant current and rated current after stabilization is given. When in real applications, the customers should use proper CRD according the real application environments (ambient temperature, voltage drop on CRD) 2. SDH series CRD used for LED constant-current control Using .


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