L6375STR

L6375S 0.5 A high-side driver intelligent power switch Datasheet - production data    Output status LED driver Immunity against burst transient (IEC 610004-4) ESD protection (human body model ±2 kV) Description Features            0.5 A output current 8 to 35 V supply voltage range Internal current limit Non-dissipative short-circuit protection Thermal shutdown Undervoltage lockout with hysteresis Internal negative voltage clamping for fast demagnetization Differential inputs with large common mode range and threshold hysteresis Open load detection Two diagnostic outputs Open ground protection February 2016 The L6375S is a monolithic intelligent power switch in multipower BCD technology to drive inductive, capacitive or resistive loads with controlled output voltage slew rate and shortcircuit protection. An internal clamping diode enables the fast demagnetization of inductive loads. Diagnostic for CPU feedback and extensive use of electrical protections make this device robust and suitable for industrial automation applications. Table 1: Device summary Order code Package -25 to +125 °C SO-8 L6375S L6375STR DocID12603 Rev 9 This is information on a product in full production. Temperature range Packing Tube Tape and reel 1/20 www.st.com Contents L6375S Contents 1 Pin connections ............................................................................... 5 2 Maximum ratings ............................................................................. 6 3 Electrical characteristics ................................................................ 7 3.1 Schematic diagram ........................................................................... 9 3.2 Input section .................................................................................... 10 3.3 Overtemperature protection ............................................................ 10 3.4 Undervoltage protection .................................................................. 10 3.5 Overcurrent operation ..................................................................... 10 3.6 Diagnostic logic ............................................................................... 11 3.7 Demagnetization of inductive loads................................................. 11 3.8 Diagnostic truth table ...................................................................... 12 4 Application circuits ....................................................................... 13 5 Package information ..................................................................... 15 6 2/20 5.1 SO-8 package information .............................................................. 15 5.2 SO-8 packing information ................................................................ 17 Revision history ............................................................................ 19 DocID12603 Rev 9 L6375S List of tables List of tables Table 1: Device summary ........................................................................................................................... 1 Table 2: Pin description .............................................................................................................................. 5 Table 3: Absolute maximum ratings ........................................................................................................... 6 Table 4: Thermal data ................................................................................................................................. 6 Table 5: Electrical characteristics ............................................................................................................... 7 Table 6: Diagnostic truth table .................................................................................................................. 12 Table 7: SO-8 package mechanical data.................................................................................................. 15 Table 8: SO-8 tape and reel mechanical data .......................................................................................... 17 Table 9: SO-8 tube mechanical data ........................................................................................................ 18 Table 10: Document revision history ........................................................................................................ 19 DocID12603 Rev 9 3/20 List of figures L6375S List of figures Figure 1: Pin connections (top view) ........................................................................................................... 5 Figure 2: Block diagram .............................................................................................................................. 9 Figure 3: Switching waveforms ................................................................................................................... 9 Figure 4: Short-circuit operation waveforms ............................................................................................. 11 Figure 5: Input comparator hysteresis ...................................................................................................... 13 Figure 6: External demagnetization circuit (versus ground) ..................................................................... 13 Figure 7: External demagnetization circuit (versus VS) ............................................................................ 13 Figure 8: Application schematic ................................................................................................................ 14 Figure 9: SO-8 package outline ................................................................................................................ 15 Figure 10: SO-8 recommended footprint .................................................................................................. 16 Figure 11: SO-8 tape and reel outline ....................................................................................................... 17 Figure 12: SO-8 tube outline ..................................................................................................................... 18 4/20 DocID12603 Rev 9 L6375S 1 Pin connections Pin connections Figure 1: Pin connections (top view) Table 2: Pin description Pin Pin name Function 1 GND Ground 2 OUTPUT High-side output with built-in current limitation 3 VS Supply voltage range with undervoltage monitoring 4 Output status This current source output can drive a LED to signal the status of the output pin. The pin is active (source current) when the output pin is high 5 DIAG1 Diagnostic1 output. This open drain reports the IC working conditions 6 DIAG2 Diagnostic2 output. This open drain reports the IC working conditions 7 IN+ Comparator inverting input 8 ON DELAY Programmable ON time interval duration during short-circuit operation DocID12603 Rev 9 5/20 Maximum ratings 2 L6375S Maximum ratings Table 3: Absolute maximum ratings Symbol Value Unit Supply voltage (tw ≤ 10 ms) 50 V Supply voltage (DC) 40 V VS- VOUT Supply to output differential voltage Internally limited V Vod ON DELAY pin voltage -0.3 to 7 V Iod ON DELAY pin current ±1 mA Iout Output current Internally limited A Vout Output voltage Internally limited V EI Energy inductive load: TJ = 85 °C 200 mJ Ptot Power dissipation Internally limited W Vdiag DIAGx pin voltage -0.3 to 40 V Idiag DIAGx pin current -10 to 10 mA Ii IN+ pin current 20 mA Vi IN+ pin voltage -10 to Vs+0.3 V Top Ambient temperature, operating range -25 to 85 °C TJ Junction tmperature, operating range -25 to 125 °C Tstg Storage temperature -55 to 150 °C Vs Parameter Table 4: Thermal data Symbol Parameter Value Rth(JA) Thermal resistance junction-ambient 100 max.(1) Rth(JP) Thermal resistance junction-pins 15 max. Unit °C/W Notes: (1)When mounted on a standard single-sided FR-4 board with 0.5 cm2 of Cu (at least 35 μm thick) connected to all VCC pins. Horizontal mounting and no artificial air flow. 6/20 DocID12603 Rev 9 L6375S 3 Electrical characteristics Electrical characteristics VS = 24 V; TJ = -25 to 125 °C, unless otherwise specified. Table 5: Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit 35 V Vsmin Supply voltage for valid diagnostic VS Operative supply voltage 8 24 35 V Vsth1 Undervoltage threshold 1 7 7.5 8 V Vsth2 Undervoltage threshold 2 6.5 7 7.5 V Vshys Undervoltage hysteresis 300 500 700 mV Iq Idiag ≥ 0.5 mA; Vdiag = 1.5 V Quiescent current Iqo 4 Output open 800 μA Output on 1.6 mA Vith IN+ pin threshold voltage 0.8 Viths IN+ pin threshold hysteresis Vil IN+ pin low level voltage Vih IN+ pin high level voltage Iib IN+ pin bias current Vi = -7 to 15 V Idch Delay capacitor charging current ON DELAY pin shorted-to-ground 2.5 Iout = 500 mA; TJ = 25 °C 200 280 TJ = 125 °C 320 440 Iout = 625 mA; TJ = 25 °C 250 350 TJ = 125 °C 400 550 Vdon Output voltage drop 1.3 2 V 50 400 mV -7 0.8 V VS < 18 V 2 VS-3 VS >18 V 2 15 -250 250 V μA μA mV 100 μA 0.8 1.5 V 48 53 58 V VS = 8 to 35 V; Rl = 2 Ω 0.75 1.1 1.5 A Vi = Vih; TA = 0 to +85 °C 1 3 6 mA 4.5 5 5.5 V Iolk Output leakage current Vi = low; Vout = 0 Vol Output low-state voltage Vi= high; pin floating Vcl Internal voltage clamp (Vs- Vout) Io = 200 mA single Pulsed = 300 ms ISC Short-circuit output current Iold Open load detection current Voth1 Output status threshold 1 voltage DocID12603 Rev 9 7/20 Electrical characteristics Symbol L6375S Parameter Test conditions Min. Typ. Max. Unit Voth2 Output status threshold 2 voltage 4 4.5 5 V Vohys Output status threshold hysteresis 300 500 700 mV Iosd Output status source current Vout > Voth1; VOS = 2.5 V 4 mA Vosd Active output status driver drop voltage VS – VOS; IOS = 2 mA; TA = 0 to +85 °C 3 V Ioslk Output status driver leakage current Vout < Voth2; VOS = 0 V; VS = 18 to 35 V 25 μA Vdgl Diagnostic drop voltage D1 / D2 = L; Idiag = 0.5 mA 40 D1 / D2 = L; Idiag = 3 mA 250 Idglk Diagnostic leakage current D1 / D2 = H; 0 < Vdg < VS VS = 15.6 to 35 V Tmax. Overtemperature upper threshold 150 °C Thys Overtemperature hysteresis 20 °C 2 1.5 mV 5 μA AC operation tr - tf td Rise or fall time Delay time dV/dt Slew rate (rising and falling edge) tON On-time during shortcircuit condition tOFF fmax. 20 Vs = 24 V; Rl = 70 Ω; Rl to ground μs 5 0.7 1 1.5 V/μs 1.28 μs/pF Off-time during shortcircuit condition 64 tON Maximum operating frequency 25 kHz 50 pF < CDON < 2 nF Source drain NDMOS diode Forward on voltage Ifsd = 625 mA Ifp Forward peak current tp = 10 ms; duty cycle = 20% trr Reverse recovery time Ifsd = 625 mA; dlfsd/dt = 25 A/μs tfr Forward recovery time Vfsd 8/20 DocID12603 Rev 9 1 1.5 V 2 A 200 ns 50 ns L6375S 3.1 Electrical characteristics Schematic diagram Figure 2: Block diagram Figure 3: Switching waveforms DocID12603 Rev 9 9/20 Electrical characteristics 3.2 L6375S Input section A single ended input TTL/CMOS compatible with a wide voltage range and high noise immunity (thanks to a built-in hysteresis) is available. 3.3 Overtemperature protection On-chip overtemperature protection provides an excellent protection of the device in extreme conditions. Whenever the temperature, measured on a central portion of the chip, exceeds Tmax. = 150 °C (typical value) the device shuts down, and the DIAG2 output goes low. Normal operation is resumed as the chip temperature (normally after few seconds) falls below Tmax.-Thys = 130 °C (typical value). The hysteresis avoids that an intermittent behavior occurs. 3.4 Undervoltage protection The supply voltage operates correctly in a range from 8 to 35 V. Below 8 V the overall system has to be considered not reliable. To avoid any malfunctioning, the supply voltage is continuously monitored to provide an undervoltage protection. As Vs falls below Vsth-Vshys (typically 7.5 V) the output power MOSFET switches off and DIAG1 and DIAG2 output go low. Normal operation is resumed as soon as Vs exceeds Vsth. The hysteretic behavior prevents intermittent operation at low supply voltage. 3.5 Overcurrent operation In order to implement a short-circuit protection, the output power MOSFET is driven to linear mode to limit the output current to the ISC value (1.1 A typical value). This condition (current limited to the ISC value) lasts for a TON time interval that can be set by a capacitor (CDON) connected to the ON DELAY pin according to the following formula: Equation 1: tON = 1.28 μs/pF for 50 pF < CDON < 2 nF After the tON interval has expired the output power MOSFET switches off for the t OFF time interval: Equation 2: tOFF = 64· tON 10/20 DocID12603 Rev 9 L6375S Electrical characteristics Figure 4: Short-circuit operation waveforms When the tOFF interval has expired, the output power MOSFET switches on. In this manner two conditions may occur:   the overload is still present. In this case, the output power MOSFET is again driven to linear mode (limiting the output current to ISC) for another tON, starting a new cycle the overload condition is removed, and the output power MOSFET is no longer driven to linear mode Please, see the DIAG pin (see Figure 4: "Short-circuit operation waveforms" ). This unique feature is called no-dissipative short-circuit protection and it ensures a very safe operation even in permanent overload conditions. The choice of the most appropriate value for the tON interval (the value of the CDON capacitor) is very important, a delay (the tON itself) prevents the misleading short-circuit information is presented on the DIAG output, when capacitive loads are driven or incandescent lamp, a cold filament, has a very low resistive value. The non-dissipative short-circuit protection can be disabled (keeping tON = 0 but with the output current still limited to ISC, and diagnostic disabled) by shorting to ground the ON DELAY pin. 3.6 Diagnostic logic The operating conditions of the device are permanently monitored and the following occurrences are indicated by DIAG1/DIAG2 open drain output pins.      3.7 Short-circuit vs. ground Short-circuit vs. VS Undervoltage (UV) Overtemperature (OVT) Open load, if the output current is less than 3 mA (typical value) Demagnetization of inductive loads An internal Zener diode, limiting the voltage across the power MOSFET between 50 and 60 V (Vcl), provides safe and fast demagnetization of inductive loads without the external clamping devices. The maximum energy absorbed by an inductive load is specified as 200 mJ (at TJ = 85 °C). DocID12603 Rev 9 11/20 Electrical characteristics 3.8 L6375S Diagnostic truth table Table 6: Diagnostic truth table Diagnostic conditions Input Output DIAG1 DIAG2 L L H H H H H H L L H H H H L H L H L H H H L H H X H H L L H H L L H H H L L H L L H L H L H L L L L L H L L L Normal operation Open load condition (Io< Iold) Short to VS Short-circuit to ground (IO = Isc)a (ON DELAY pin grounded) Output DMOS open Overtemperature Supply undervoltage (VS< Vsth2) a A cold lamp filament or a capacitive load activates the current limiting circuit of the IPS, when the IPS is initially turned on. 12/20 DocID12603 Rev 9 L6375S 4 Application circuits Application circuits Figure 5: Input comparator hysteresis Figure 6: External demagnetization circuit (versus ground) Figure 7: External demagnetization circuit (versus VS) DocID12603 Rev 9 13/20 Application circuits L6375S Figure 8: Application schematic 14/20 DocID12603 Rev 9 L6375S 5 Package information Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK ® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 5.1 SO-8 package information Figure 9: SO-8 package outline Table 7: SO-8 package mechanical data mm Dim. Min. Typ. A Max. 1.75 A1 0.10 A2 1.25 b 0.28 0.48 c 0.17 0.23 D 4.80 4.90 5.00 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 0.25 1.27 h 0.25 0.50 L 0.40 1.27 L1 k 1.04 0° ccc 8° 0.10 DocID12603 Rev 9 15/20 Package information L6375S Figure 10: SO-8 recommended footprint 16/20 DocID12603 Rev 9 L6375S 5.2 Package information SO-8 packing information Figure 11: SO-8 tape and reel outline Table 8: SO-8 tape and reel mechanical data mm Dim. Min. A Typ. Max. 330 C 12.8 D 20.2 N 60 T 13.2 22.4 Ao 8.1 8.5 Bo 5.5 5.9 Ko 2.1 2.3 Po 3.9 4.1 P 7.9 8.1 DocID12603 Rev 9 17/20 Package information L6375S Figure 12: SO-8 tube outline Table 9: SO-8 tube mechanical data 18/20 Dim. mm A 18.80 B 17.2 ± 0.2 C 8.20 ± 0.2 D 10.90 ± 0.2 E 2.90 ± 0.2 F 0.40 G 0.80 H 6.30 I 4.30 ± 0.2 J 3.7 ± 0.2 K 9.4 L 0.40 M 0.80 N 3.50 ± 0.2 DocID12603 Rev 9 L6375S 6 Revision history Revision history Table 10: Document revision history Date Revision Changes 18-Sep-2006 1 Initial release. 19-Jun-2007 2 Truth table updated 05-Jul-2007 3 Typo in Table 5 16-Jul-2007 4 Updated pinout 15-Oct-2007 5 Updated table 4 29-Jun-2009 6 Updated table 5 12-Mar-2010 7 Updated table 5 20-Dec-2011 8 Updated table 5 23-Feb-2016 9 Changed Figure 1: "Pin connections (top view)". Updated Table 3: "Absolute maximum ratings" and Table 5: "Electrical characteristics ". DocID12603 Rev 9 19/20 L6375S IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2016 STMicroelectronics – All rights reserved 20/20 DocID12603 Rev 9