Download PDFACPL-K305T ABRACON
Document overview
- Manufacturer or author: Provided By digicamel.com
- PDF pages: 14
Technical content
Features
Qualified to AEC-Q100 test guidelines Automotive temperature range: –40°C to +125°C Drive external power MOSFET/IGBT without isolated secondary supply Low IF drive of 3 mA Open-circuit voltage: 7.1V typical at IF = 10 mA Short-circuit current: 59 μA typical at IF = 10 mA Fast switching speed for IF = 10 mA, CL = 1 nF: – Turn-on time: 0.07 ms typical – Turn-off time: 0.02 ms typical Regulatory approvals: – UL/cUL 1577 5kV RMS for 1 minute – IEC/EN 60747-5-5 V IORM = 1260 VPEAK
Applications
Solid-state relay High-side power switch control Battery management system Precharge/active discharge circuit in high voltage system CAUTION! It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/ or degradation that may be induced by ESD. The components featured in this data sheet are not to be used in military or aerospace applications or environments. ACPL-K305T Automotive Photovoltaic Driver with R2Coupler™ Isolation
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Package Pinout Figure 3: ACPL_K305T Pinout Pin Description
Ordering Information
To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry. Example: ACPL-K305T-560E to order product of Stretched SO8 Surface-Mount package in Tape and Reel packaging with IEC/EN 60747-5-5 Safety Approval in RoHS compliant. Option data sheets are available. Contact your Broadcom sales representative or authorized distributor for information. Pin Number Name Function 1, 4, 6, 8 NC No internal connection
2 AN Anode
3 CA Cathode
5 VO+ Positive output
7 VO– Negative output
(RoHS Compliant) Package Surface Mount Tape and Reel UL 5000 VRMS/
1 Minute Rating
ACPL-K305T -000E Stretched SO-8 X X 80 per tube -060E X X X 80 per tube -500E X X X 1000 per reel -560E X X X X 1000 per reel
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Package Outline Drawing Figure 4: Stretched SO-8 Package Recommended Pb-Free IR Profile Recommended reflow condition as per JEDEC Standard, J-STD-020 (latest revision). NOTE: Non-halide flux should be used. Regulatory Information The ACPL-K305T is approved by the following organizations. UL/cUL IEC/EN 60747-5-5 UL 1577, component recognition program up to VISO = 5000 VRMS VIORM = 1260 VPEAK VIOTM = 8000 VPEAK
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation IEC/EN 60747-5-5 Insulation Characteristics Insulation and Safety Related Specifications ESD Ratings Description Symbol Characteristic Unit Installation Classification per DIN VDE 0110/1.89, Table 1 For Rated Mains Voltage < 600 VRMS I – IV Climatic Classification 40/125/21 Pollution Degree (DIN VDE 0110/1.89) 2 Maximum Working Insulation Voltage V IORM 1260 V PEAK Input to Output Test Voltage, Method b VIORM × 1.875 = VPR, 100% Production Test with tm = 1s, Partial Discharge < 5 pC VPR 2362 V PEAK Input to Output Test Voltage, Method a VIORM × 1.6 = VPR, Type and Sample Test, tm = 10s, Partial Discharge < 5 pC VPR 2016 V PEAK Highest Allowable Overvoltage (Transient Overvoltage tini = 60s) V IOTM 8000 V PEAK Safety-Limiting Values (Maximum values allowed in the event of a failure) Case Temperature Input Current Output Power T S IS,INPUT PS,OUTPUT 175 230 600 mA mW Insulation Resistance at TS, VIO = 500V R S >109 Ω Parameter Symbol Unit Conditions Minimum External Air Gap (Clearance) L(101) 8 mm Measured from the input terminals to the output terminals, shortest distance through the air. Minimum External Tracking (Creepage) L(102) 8 mm Measured from the input terminals to the output terminals, shortest distance path along the body. Minimum Internal Plastic Gap (Internal Clearance) 0.08 mm Through insulation distance conductor to conductor, usually the straight line distance thickness between the emitter and the detector. Tracking Resistance (Comparative Tracking Index) CTI >600 V DIN IEC 112/VDE 0303 Part 1. Isolation Group I Material Group (DIN VDE 0110) Parameter Classification Note Human Body Model 2 Per AEC Q100-002-Rev-E Charged Device Model C2a Per AEC Q100-011-Rev-D
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Absolute Maximum Ratings Recommended Operating Conditions Parameter Symbol Min. Max. Unit Note Storage Temperature T S –55 150 °C Operating Temperature T A –40 125 °C IC Junction Temperature T J —1 5 0 ° C Input Current - Average I F(AVG) —3 0 m A Input Current - Surge I F(SURGE) —4 0 m A a a. At 50% duty cycle. Reverse Input Voltage (VCA – VAN) V R —6 V Output Current - Average I O(AVG) —1 . 3 m A Output Current - Surge I O(SURGE) —5 m A Input Power Dissipation P IN —1 0 0 m W b b. At 20% duty cycle. Output Power Dissipation P OUT —2 0 m W Parameter Symbol Min. Max. Unit Note Operating Temperature T A –40 125 °C Input Current (ON) I F(ON) 32 0 m A Input Voltage (OFF) (VAN – VCA)V F(OFF) –5.5 0.6 V
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Electrical Specifications (DC) Unless otherwise specified, all minimum and maximum specifications are at recommended operating conditions. All typical values at TA = 25°C. Switching Specifications (AC) Unless otherwise specified, all minimum and maximum specifications are at recommended operating conditions. All typical values at TA = 25°C. Package Characteristics Parameter Symbol Min. Typ. Max. Unit Test Conditions Fig. Notes LED Forward Voltage (VAN – VCA)V F 1.1 1.5 1.8 V I F = 10 mA Temperature Coefficient of LED Forward Voltage ∆VF/∆TA — –1.5 — mV/°C I F = 10 mA LED Reverse Breakdown Voltage (VCA – VAN) VBR 6—— V I F = 10 μA LED Input Capacitance C IN —7 — p F Output Clamp Voltage V OCLAMP —— 2 V V F = 0.6V, IO = 5 mA 5 Open-Circuit Voltage V OC 4.3 6.7 — V I F = 3 mA 6,7 4.8 7.1 — V I F = 10 mA 6,7 5.1 7.3 — V I F = 20 mA 6,7 5.2 7.4 — V I F = 30 mA, 100 ms pulse 6,7 Temperature Coefficient of Open-Circuit Voltage ΔVOC/ΔTA — –18 — mV/°C I F = 10 mA Short-Circuit Current I SC 6.5 19 — μAI F = 3 mA 8,9 24 59 — μAI F = 10 mA 8,9 40 107 — μAI F = 20 mA 8,9 55 146 — μAI F = 30 mA, 100 ms pulse 8,9 Parameter Symbol Min. Typ. Max. Unit Test Conditions Fig. Notes Turn-On Time t ON — 365 1350 μsI F = 3 mA, CL = 1 nF 10,12,14 — 70 335 μsI F = 10 mA, CL = 1 nF 10,12,14 — 65 200 μsI F = 20 mA, CL = 1 nF 10,12,14 Turn-Off Time t OFF —3 56 0 μsI F = 3 mA, CL = 1 nF 11,13,14 —2 24 5 μsI F = 10 mA, CL = 1 nF 11,13,14 —2 03 5 μsI F = 20 mA, CL = 1 nF 11,13,14 Parameter Symbol Min. Typ. Max. Unit Test Conditions Note Input-Output Momentary Withstand Voltage V ISO 5000 — — V RMS RH < 50%, t = 1 minute, TA = 25°C Resistance (Input-Output) R I-O — 1012 — Ω VI-O = 500 VDC Capacitance (Input-Output) C I-O —1—p F f = 1 M H z
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation
Application Information
The ACPL-K305T automotive photovoltaic (PV) driver is a device that is paired with MOSFETs to form a basic building block of several types of application. A solid-state relay is formed using a photovoltaic driver combined with one or two MOSFETs. When combined with two back-to-back MOSFETs, the combination forms a bidirectional switch. It consists of an AlGaAs LED input that is optically coupled to a photovoltaic diode array. This becomes a voltage source with galvanic isolation. The advantage of a photovoltaic driver is its simple design that does not require secondary side bias supply. Basic Construction As shown in Figure 15, the input side of the PV driver is LED driven. A current-limiting resistor is required to limit the current through the LED. Recommended input forward current is 3 mA to 20 mA. The LED is optically coupled through a photodiode stack consisting photodiodes connected in series. When current is driven into the light-emitting diode (LED) on the input side, the light from the LED generates photo current on the string of photodiodes to charge the gate of the MOSFETs, generating a photo-voltage proportional to the number of photodiodes, to switch and keep the power device on. Figure 15: Basic Construction of Photovoltaic Driver Input Drive Circuit As shown in Figure 16, the current limiting resistor RLED sets the input driving current (IF) and it can be calculated by: Where VIN is the input voltage, VF is the forward voltage of the LED, and the desired input current is IF. In order to prevent accidental turning-on of the LED due to leakage current in the input, it is recommended to have a definite threshold input current for the LED. This threshold adjustment can be obtained by shunting the LED by a resistor (RSHUNT), the value of which is determined by a ratio between the Input Threshold Current (IFT) and Maximum Input LED Turn-Off Voltage (VF(OFF)MAX). The circuit in Figure 16 shows the relationship between these values. The calculations will determine the shunt resistor value required for a given IFT and VF(OFF)MAX. In the following example, the maximum LED turn-off voltage is 0.6V (specified in Recommended Operating Conditions) and the input threshold current is set to 100 μA. The required shunt resistor value is approximately 6 kΩ. In this example, when the LED is ON, a current value greater than 250 μA will flow through the shunt resistor. RLED VIN VF– IF
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Figure 16: Circuit Diagram NOTE: The recommended RSHUNT value is approximately 6 kΩ. ACPL-K305T RSHUNT VF(OFF)MAX IFT 0.6V RSHUNT 6 k Ω= Turn-Off Circuit The photovoltaic driver has a built-in turn-off circuit, which decreases the turn-off time. This circuit instantaneously discharges the gate capacitance of MOSFETs once the photovoltaic driver is turned off. The turn-off circuit is activated when the photovoltaic voltage is collapsing. Referring to Figure 15, the sequence of operation for the turn-off circuit is as follows: When the LED is ON: 1. Q1 and Q2 are saturated. 2. SCR (Q3 and Q4) is disabled. 3. Photodiode array is connected to Gate and Source. When the LED is OFF: 1. Q1 and Q2 cease to conduct. 2. Photodiode array is disconnected from Gate and Source. 3. SCR (Q3 and Q4) is triggered and gate capacitance (CGS) is discharged rapidly.
ACPL-K305T Data Sheet Automotive Photovoltaic Driver with R2Coupler™ Isolation Thermal Resistance Model for ACPL-K305T The diagram of ACPL-K305T for measurement is shown in Figure 20. Here, one die is heated first and the temperatures of all the dice are recorded after thermal equilibrium is reached. Then, the second die is heated and all the dice temperatures are recorded. With the known ambient temperature, the die junction temperature, and power dissipation, the thermal resistance can be calculated. The thermal resistance calculation can be cast in matrix form. This yields a 2-by-2 matrix for our case of two heat sources. Figure 20: Diagram of ACPL-K305T for Measurement R11 R12 ΔT1 R21 R22 P2 ΔT2 Die 1: LED Die 2: Detector R11: Thermal Resistance of Die1 due to heating of Die1. R12: Thermal Resistance of Die1 due to heating of Die2. R21: Thermal Resistance of Die2 due to heating of Die1. R22: Thermal Resistance of Die2 due to heating of Die2. P1: Power dissipation of Die1 (W). P2: Power dissipation of Die2 (W). T1: Junction temperature of Die1 due to heat from all dice (°C). T2: Junction temperature of Die2 due to heat from all dice (°C). TA: Ambient temperature. ΔT1: Temperature difference between Die1 junction and ambient (°C). ΔT2: Temperature difference between Die2 junction and ambient (°C). T1 = R11 x P1 + R12 x P2 + TA T2 = R21 x P1 + R22 x P2 + TA Measurement data on a low K (conductivity) board: R11: 290°C/W R12: 89°C/W R21: 80°C/W R22: 136°C/W Measurement data on a high K (conductivity) board: R 11: 242°C/W R12: 42°C/W R21: 35°C/W R22: 86°C/W
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