SPF5047 SANKEN | Alldatasheet

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Technical content

Datasheet sections

Features

  • 4 Searis LED Bypass Switches
  • Drives Up to 16 LEDs in S eries (with 4 ICs; at VF of an LED is approx. 3 V)
  • Low Noise: No charge -current-induced noise oc crus as each gate driver uses a negative power souce which requires no charge-pump circuit.
  • High Efficiency: Optimized trade -offs between switching loss and switching noise allow highly-accurate control in tr and tf.
  • Fault Flag Reporting
  • LED Open Detection
  • LED Short Detection Typical Application POS COM1 VCC STATE1 IN1 ROPEN COM2 COM3 NEG STATE3 IN3 STATE4 IN4 ISO CPU GND TEST 19 13 STATE2 IN2 24 4 Package HSOP24 Not to scale Specifications
  • Voltage across LED Capacitos in Series,VPOS: −65 V (max.)
  • Bypass Switch Output Current, IOUT: 2 A (max.)
  • Bypass Switch On-Resistance (at 25 °C), RDS(ON): 120 mΩ (typ.)

Applications

  • Automotive Headlight
  • Daylight Running Lamp (DRL)
  • High-Brightness Matrix LED System

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 3 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 1. Absolute Maximum Ratings Current polar ities are defined as follows: current going into the IC (sinking) is positive current (+); and current coming out of the IC (sourcing) is negative current (−). Unless specifically noted, TA = 25 °C, GND = ground. Parameter Symbol Test Conditions Rating Unit Remarks VCC−NEG Pin Voltage VCN 70.5 V t < 10 µs 72 V NEG Pin Voltage VNEG −65 to 0 V POS Pin Voltage VPOS −65 to 0 V VCC Pin Voltage VCC 0 to 5.5 V Input Pin Voltage VIN 0 to 5.5 V STATE Pin Voltage VST 0 to 5.5 V STATE Pin Current IST ±10 mA ROPEN Pin Voltage VROPEN 0 to 5.5 V MOSFET Drain-to-Source Voltage VDS VCLAMP* V MOSFET Active Clamp Time tCLAMP 1 channel; IOUT = 2 A 100 ms 4 channels at once; IOUT = 2 A 50 ms Output Current IOUT 2 A Junction Temperature Tj 150 °C Operating Ambient Temperature TOPR −40 to 125 °C Power Dissipation PD 6.2 W Storage Temperature Tstg −40 to 150 °C * Limited by the active clamp voltage, VCLAMP. 2. Electrostatic Discharge (ESD) ESD immunity test conditions: TA = 25 °C, ISO = ground. Parameter Symbol Conditions Min. Typ. Max. Unit Human Body Model (HBM) VESD(HBM) C = 100 pF, R = 1.5 kΩ* −2000 — 2000 V Machine Model (MM) VESD(MM) C = 200 pF, R = 0 Ω; all pins −200 — 200 V * Based on JEITA EIAJ ED-4701/304.

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 4 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 3. Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit Remarks Logic Supply Voltage VCC 4.9 — 5.1 V VCC pin PWM Drive Frequency fPWM 100 — 500 Hz IN1 to IN4 pins 4. Electrical Characteristics Current polar ities are defined as follows: current going into the IC (sinking) is positive curr ent (+); and c urrent coming out of the IC (sourcing) is negative current (−). Unless specifically noted, the characteristic values listed in this section are values per channel, and GND is the ground. Unless otherwise specified, the conditions are as follows: Tj = – 40 °C to 125 °C;(1) the VCC pin voltage, VCC = 5.0 V; the NEG pin voltage, VNEG = −30 V; with the NEG and ISO pins being shorted. The voltage across the INx pin, which is placed in the channel not to be measured, should be fixed at 5 V. Parameter Symbol Conditions Min. Typ. Max. Unit Operation Start Voltage VCC(ON) 3.0 3.5 4.0 V Operation Stop Voltage VCC(OFF) 2.4 2.7 3.0 V Circuit Current 1 ICC1 VIN1 = VIN2 = VIN3= VIN4 = 0 V — — 11 mA Circuit Current 2 ICC2 VIN1 = VIN2 = VIN3= VIN4 = 5 V; drain-to-source voltage per MOSFET = 4 V — — 11.5 mA IN Pin Input Threshold Voltage VTHH 3.5 — — V VTHL — — 1.5 V IN Pin Input Current IIN — 50 100 µA Output On-Resistance RDS(ON) Tj = 25 °C, IOUT = 1 A — 120 150 mΩ Tj = 125 °C, IOUT = 1 A — — 250 mΩ Active Clamp Voltage VCLAMP IOUT = 1 A; INx in the non- measuring channel = 0 V fixed 12 15 18 V Short Detection Voltage(2) VSH VROPEN = 2 V 1.25 1.5 1.75 V Setting Range for Open Detection Threshold Voltage(2) VOPR 1.75 — 11 V Open Detection Voltage(2) VOP2 VROPEN = 0.5 V 1.84 2.00 2.16 V VOP4 VROPEN = 1 V 3.68 4.00 4.32 V VOP8 VROPEN = 2 V 7.36 8.00 8.64 V VOP10 VROPEN = 2.5 V 9.2 10.0 10.8 V ROPEN Pin Input Current IROP VROPEN = 3 V — 1.2 4 µA STATE Pin Output Voltage VSTH ISTATE = −5 mA VCC − 0.5 — VCC V VSTL ISTATE = 5 mA 0 — 0.5 V Minimum Open/Short Detection Time tDET 50 — — µs (1) “Tj = –40 °C” is the parameter ensured by design only. For shipping inspection, all electrical characteristics values should be evaluated at Tj = 25 °C or 125 °C. (2) Refers to drain-to-source voltage across each built-in MOSFET.

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 5 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 Parameter Symbol Conditions Min. Typ. Max. Unit Internal Oscillator Clock Cycle tCLK 3.04 4 4.96 µs Short Detection Filter Time tSH VROPEN = 2 V 17.1 22.5 27.9 ms Open Detection Filter Time tOP VROPEN = 2 V 17.1 22.5 27.9 ms Short Detection Recovery Delay Time tSHB VROPEN = 2 V — — 50 µs Open Detection Delay Time tOPR VROPEN = 2 V — — 50 µs Open Recovery Filter Time tOPB VROPEN = 2 V 12.4 16.4 20.4 ms Filter Time Difference tOP-OPB tOP-OPB = tOP − tOPB 4.7 6.1 7.5 ms Output Propagation Delay tON (3) — 40 80 µs tOFF — 40 80 µs Output Rise Time tr 30 70 110 µs Output Fall Time tf 30 70 110 µs Output Propagation Delay Difference tDIFF −30 — 30 µs Junction-to-Case Thermal Resistance θj-C — — 4.9 °C/W (3) Drain-to-source voltage per MOSFET = −30 V, with a 4 Ω source resistor being connected. Short the NEG pin to the source pin in the channel to be measured. For switching characteristics definitions, see Figure 4-1 below. INx VDS × 0.9 VDS × 0.1 VDS × 0.1 VDS × 0.9 tON tr tOFF tf Drain-to-Source Voltage VDS Figure 4-1. Switchin g Characteristics Definitions tDIFF = tON – tOFF

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 6 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 5. Block Diagram POS COM1 VCC STATE1 IN1 ROPEN COM2 COM3 NEG STATE3 IN3 STATE4 IN4 ISOGND TEST STATE2 IN2 16 Short Detection VCC Gate Drive Voltage Monitor 4Filter 2 (Timer 2) Filter 1 (Timer 1) Open Detection VCC TEST UVLO OSC

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 7 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 6. Pin Configuration and Definitions TEST STATE1 STATE2 STATE3 STATE4 ROPEN GND IN1 IN2 IN3 IN4 VCC I SO POS COM1 COM2 COM3 NEG

25 FIN

Pin Number Pin Name Function

1 ISO MIC reference; internally shorted to NEG

2 N.C. No connection 3 N.C. No connection

4 POS Drain of Channel 1

5 N.C. No connection

6 COM1 Source of Channel 1, drain of Channel 2

7 N.C. No connection

8 COM2 Source of Channel 2, drain of Channel 3

9 N.C. No connection

10 COM3 Source of Channel 3, drain of Channel 4

11 N.C. No connection

12 NEG Source of Channel 4; internally shorted to ISO

13 VCC 5 V power supply

14 IN4 Input for Channel 4

15 IN3 Input for Channel 3

16 IN2 Input for Channel 2

17 IN1 Input for Channel 1

18 GND Ground

19 ROPEN Threshold voltage setting for LED open detection; commonly applied to all channels (1

to 4)

20 STATE4 Open/short detection for Channel 4

21 STATE3 Open/short detection for Channel 3

22 STATE2 Open/short detection for Channel 2

23 STATE1 Open/short detection for Channel 1

24 TEST Product inspection; normally left unused; must be shorted to GND when used

25 FIN Backside heatsink; must be shorted to NEG and ISO when used

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 8 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 7. Typical Applications The NEG pin, the ISO pin, and the backside heatsink must be shorted on a PCB. Connect these pins to the lowest potential (negative potential) among other pins. The TEST pin must be shorted to the GND pin on a PCB. POS COM1 VCC STATE1 IN1 ROPEN COM2 COM3 NEG STATE3 IN3 STATE4 IN4 ISO CPU GND TEST STATE2 IN216 Figure 7-1. Typical Application (4 channel s)

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 9 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 POS COM1 VCC STATE1 IN1 ROPEN COM2 COM3 NEG STATE3 IN3 STATE4 IN4 ISO CPU GND TEST STATE2 IN216 POS COM1 VCC STATE1 IN1 ROPEN COM2 COM3 NEG STATE3 IN3 STATE4 IN4 ISO CPU GND TEST STATE2 IN216 Figure 7-2. Typical Application (8 channel s)

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 10 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 8. Physical Dimensions

  • HSOP24 （裏面からリード根元 ） (R End) Ａ部拡大図 NOTES:
  • Dimensions in millimeters
  • Pin treatment: Pb-free (RoHS compliant)
  • Reflow (Excludes Gate Protrusion) (Includes Mold Flash) (Excludes Mold Flash) (From Backside to Base of Lead) Enlarged View of A

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 11 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 9. Recommended Land Pattern 10. Marking Diagram Part Number Lot Number : Y is the last digit of the year of manufacture (0 to 9) M is the month of the year (1 to 9, O, N, or D) DD is the day of the month (01 to 31) X is the control number ▲SK Y M DD X S P F 5 0 4 7

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 13 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 11.4.1. LED Short Detection Figure 11-3 shows the operating waveforms during an LED short event. And Figure 11-4 provides the enlarged view of A, illustrated in Figure 11-3. If one or more LEDs are shorted to ground, the MOSFET drain-to-source voltage, V DS, attempts to decrease. The short detection voltage, V SH, is used for LED status diagnostics and is set to 1.5 V. When a short condition (where VDS ≤ VSH) persists for a period greater than the short detection filter time (tSH) of 22.5 ms, the STATEx pin in the shorted -LED channel becomes logic high (or “H”). When VDS exceeds VSH under the short condition, the short detection comparator waits to invert its output until tSHB, the open detection recovery time of 50 μs (max.), has elapsed. Following the output inversion of the short detection comparator, the STATEx pin is put into a logic low state (or “L”) after 12 cycles of a clock pulse. Then, the IC resumes its normal operation. VCC Clock LED Driver Power Supply VCC(ON) VDS VSH STATEx Pin Voltage tSH VSCO A LED Shorted VCC(OFF) LED Shorted Figure 11-3. Waveforms during Short Detection tSHB VDS STATEx Pin Voltage VSCO Clock

12 Cycles of Clock Pulse

Figure 11-4. Waveforms during Short Detection (Enlarged View of A) 11.4.2. LED Open Detection Figure 11-5 shows the operating waveforms during an LED open event. And Figure 11-6 provides the enlarged view of B, illustrated in Figure 11-5. If one or more LEDs are open, the MOSFET drain-to- source voltage, VDS, attempts to increase. The open detection voltage, V OP, is used to detect open-LEDs. When an open condition (where V DS ≥ VOP) persists for a period greater than the open detection filter time (tOP) of 22.5 ms, the STATEx pin in the open- LED channel becomes logic high (or “H”). Even after the open detection comparator output, VOCO, is held logic high, the microcontroller does not respond to an “ H” signal whose duration is shorter than 3 cycles of a clock pulse (see Figure 11-5). This is to prevent false detections. When VDS falls below V OP, the voltage on the open detection comparator, V OCO, will be inverted after t OPB, the open recovery filter time of 16.4 ms. Following the output inversion of the open detection comparator, the short detection comparator is inverted after tSHB of 50 µs (max.). Then, the STATEx pin is put into a logic low state (or “L”) after 12 cycles of a clock pulse. This high-to-low transition mechanism is identical to that of the LED short detection, as shown in Figure 11-4. Then, the IC resumes its normal operation. Table 11-1 indicates how the V OP values vary according to the ROPEN pin voltages. Hence, note that the ROPEN pin voltages must be determined according to LED currents.

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 14 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 Table 11-1. Open Detection Voltage vs. ROPEN Pin Voltage Symbol ROPEN Pin Voltage Open Detection Voltage, VOP Min. Typ. Max. VOP2 0.5 V 1.84 V 2.00 V 2.16 V VOP4 1 V 3.68 V 4.00 V 4.32 V VOP8 2 V 7.36 V 8.00 V 8.64 V VOP10 2.5 V 9.2 V 10.0 V 10.8 V VCC Clock VCC(ON) VOCO VDS VOP STATEx Pin Voltage tOP VSCO tOPB LED Driver Power Supply VFO B VORO LED Opened VCC(OFF) A Figure 11-5. Waveform s during Open Detection VDS VFO VOCO Clock tOPR VSCO VORO

3 Cycles of Clock Pulse

Figure 11-6. Waveforms during Open Detection (Enlarged View of B)

SPF5047-DSE Rev.1.1 SANKEN ELECTRIC CO.,LTD. 15 Sep. 07, 2016 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2016 Important Notes

  • All data, illustrations, graphs, tables and any other information included in this document as to Sanken’s products listed herein (the “Sanken Products”) are current as of the date this document is issued. All contents in this document are subject to any change without notice due to improvement of the Sanken Products , etc. Please make sure to confirm with a Sanken sales representative that the contents set forth in this document reflect the latest revisions before use.
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