L6377D013TR

L6377 0.5 A high-side driver quad intelligent power switch Datasheet - production data   Protection against surge transient (IEC 61000-4-5) Immunity against burst transient (IEC 61000-4-4) Features Description         This device is a monolithic intelligent power switch in multipower BCD technology to drive inductive, capacitive or resistive loads. Diagnostic for CPU feedback and extensive use of electrical protections make this device robust and suitable for general purpose industrial applications.    Multipower BCD technology 0.5 A output current 8 to 35 V supply voltage range External programmable current limit Non-dissipative overcurrent protection Thermal shutdown Undervoltage lockout with hysteresys Diagnostic output for undervoltage, overtemperature and overcurrent External asynchronous reset input Presettable delay for overcurrent diagnostic Open ground protection July 2015 Table 1: Device summary Order code L6377D Packing Tube SO-14L L6377D013TR DocID1637 Rev 5 This is information on a product in full production. Package Tape and reel 1/19 www.st.com Contents L6377 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 4 Overcurrent operation ................................................................... 11 5 Demagnetization of inductive loads ............................................. 13 6 Package information ..................................................................... 15 6.1 7 2/19 SO-14L package information........................................................... 15 Revision history ............................................................................ 18 DocID1637 Rev 5 L6377 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: SO-14L package mechanical data ............................................................................................. 16 Table 7: Document revision history .......................................................................................................... 18 DocID1637 Rev 5 3/19 List of figures L6377 List of figures Figure 1: Pin connections (top view) ........................................................................................................... 5 Figure 2: Block diagram .............................................................................................................................. 9 Figure 3: Undervoltage comparator hysteresis ........................................................................................... 9 Figure 4: Switching waveforms ................................................................................................................. 10 Figure 5: Short-circuit operation waveforms ............................................................................................. 11 Figure 6: Input comparator hysteresis ...................................................................................................... 13 Figure 7: External demagnetisation circuit (versus ground) ..................................................................... 13 Figure 8: External demagnetisation circuit................................................................................................ 14 Figure 9: SO-14L package outline ............................................................................................................ 15 Figure 10: SO-14L recommended footprint outline .................................................................................. 17 4/19 DocID1637 Rev 5 L6377 1 Pin connections Pin connections Figure 1: Pin connections (top view) N.C. 1 14 N.C. GND 2 13 RESET OUT 3 12 IN+ VS 4 11 DIAG R SC 5 10 ON DELAY N.C. 6 9 N.C. N.C. 7 8 N.C. GIPG1707151238LM D96IN368 Table 2: Pin description Pin Pin name Function 1, 6, 7, 8, 9, 14 N.C. Not connected 2 GND Ground pin 3 OUT High-side output. Controlled output with current limitation 4 VS Supply voltage. Range with undervoltage monitoring 5 RSC Current limiting setting 10 ON DELAY Delay setting for overcurrent diagnostic 11 DIAG Diagnostic open drain output for overtemperature, undervoltage and overcurrent 12 IN+ Comparator non-inverting input 13 RESET Asynchronous reset input DocID1637 Rev 5 5/19 Maximum ratings 2 L6377 Maximum ratings Table 3: Absolute maximum ratings Symbol Value Unit Pin 4: supply voltage (tw ≤ 10 ms) 50 V Pin 4: supply voltage (DC) 40 V VS- VOUT Pin 4 vs 3: supply to output differential voltage Internally limited V Vod Pin 10: externally forced voltage -0.3 to 7 V Iod Pin 10: externally forced current ±1 mA IRESET Pin 13: reset input current (forced) ±2 mA VRESET Pin 13: reset input voltage -0.3 to 40 V Iout Pin 3: output current Internally limited Vout Pin 3: output voltage Internally limited W Eil Total energy inductive load: (TJ = 125 °C 50 mJ Ptot Power dissipation Internally limited Vdiag Pin 11: external voltage -0.3 to 40 V Idiag Pin 11: externally forced current -10 to 10 mA Ii Pin 12: input current 20 mA Vi Pin 12: input 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 Rth(JA) 6/19 Parameter Value Unit Thermal resistance junction-ambient 150 max. °C/W DocID1637 Rev 5 L6377 3 Electrical characteristics Electrical characteristics VS = 24 V; TJ = -25 to 125 °C, unless otherwise specified Table 5: Electrical characteristics Symbol Pin Parameter Test conditions Min. Typ. Max. Unit 35 V 35 V 8 V 700 mV DC operation Supply voltage for valid diagnostic Vsmin VS Vsth 4 Idiag ≥ 0.5 mA; Vdiag = 1.5 V; Operative supply voltage 8 Undervoltage lower treshold 7 Undervolatge hysteresis Vshys Iq 4 Quiescent current Iqo 300 800 μA Output on 1.6 mA Input threshold voltage 0.8 Viths Input threshold hysteresis Input low level voltage 12 Vih Input high level voltage Iib Input bias current 500 Output pen Vith Vil 24 2 V 50 400 mV -7 0.8 V VS < 18 V 2 VS-3 VS >18 V 2 15 -250 250 μA 2 V Vi = -7 to 15 V 1.3 V Reset threshold voltage 0.8 Reset low level voltage 0 0.8 V Vrh Reset high level voltage 2 40 V Irb Reset pull down current Vrth Vrl 13 1.3 5 μA Delay capacitor charging current ON delay pin shorted-to-ground 2.5 μA Output voltage on RSC pin Rsc pin floating 1.25 V Irsc Output current on RSC pin Rsc pin shorted-toGND 300 μA Idlkg Diagnostic output leakage current Diagnostic off 25 μA Diagnostic output voltage drop Idiag = 5 mA 1.5 V Idch 10 Vrsc 5 11 Vdiag Output voltage drop Vdon 3 Iout = 625 mA TJ = 25 °C 250 Iout = 625 mA TJ = 125 °C 400 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 Iolk DocID1637 Rev 5 350 mV 48 500 100 μA 0.8 1.5 V 53 58 V 7/19 Electrical characteristics Symbol Pin L6377 Parameter Test conditions Short-circuit output current ISC Min. Vs = 8 to 35 V; Rl = 2 Ω; Rsc = 5 to 30 kΩ Typ. Max. Unit 5/RSC = kΩ A Tmax. Overtemperature upper threshold 150 °C Thys Overtemperature hysteresis 20 °C AC operation td Vs = 24 V; Rl = 70 Ω Rl to ground Rise or fall time tr - tf 3 Delay time Slew rate (rise and fall edge) Vs = 24 V; Rl = 70 Ω Rl to ground tON On-time during shortcircuit condition 50 pF < CDON < 2 nF fmax. 10 μs 5 dV/dt tOFF 20 0.7 1 1.5 V/μs 1.28 μs/pF Off-time during shortcircuit condition 64 tON Maximum operating frequency 25 kHz 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 = 500 mA; dlfsd/dt = 25 A/μs tfr Forward recovery time Vfsd 8/19 DocID1637 Rev 5 1 1.5 V 1.5 A 200 ns 50 ns L6377 3.1 Electrical characteristics Schematic diagram Figure 2: Block diagram Figure 3: Undervoltage comparator hysteresis DocID1637 Rev 5 9/19 Electrical characteristics L6377 Figure 4: Switching waveforms 3.2 Input section An input and asynchronous reset, TTL/CMOS compatible with wide voltage range and high noise immunity (thanks to a built-in hysteresis) is available. 3.3 Overtemperature protection An 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 DIAG 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 misfunctioning, the supply voltage is continuously monitored to provide an undervoltage protection. As Vs falls below Vsth-Vshys (typically 7.5 V, see Figure 4: "Switching waveforms" ) the output power MOSFET switches off and DIAG output goes low. Normal operation is resumed as soon as V s exceeds Vsth. The hysteretic behaviour prevents intermittent operation at low supply voltage. 10/19 DocID1637 Rev 5 L6377 4 Overcurrent operation 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. This ISC limit is externally set by an external 1/4 W resistor connected from RSC pin and GND. The value of the resistor must be chosen according to the following formula: Equation 1: Isc (A) = 5/RSC (kohm) with 5 < RSC < 30 (kohm). Concerning RSC < 5 (kohm) ISC is limited to ISC = 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 2: tON = 1.28 μsec/pF for 50 pF < CDON < 2 nF After the tON interval has expired the output power MOSFET switches off for the tOFF time interval: Equation 3: tOFF = 64· tON. Figure 5: 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 5: "Short-circuit operation waveforms" ). This unique feature is called short-circuit protection and it ensures a very safe operation even in permanent overload conditions. Note that, the choice of the most appropriate value for the tON interval (the value of the CDON capacitor), a delay (the tON itself) prevents a misleading short-circuit information is presented on the DIAG output, when capacitive loads are driven DocID1637 Rev 5 11/19 Overcurrent operation L6377 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) simply shorting to ground the ON DELAY pin. 12/19 DocID1637 Rev 5 L6377 5 Demagnetization of inductive loads Demagnetization of inductive loads The L6377 has an internal clamping Zener diode, which demagnetises inductive loads. Note that the limitation comes from the peak power that the package can handle. Attention must be paid to a proper thermal design of the board. If load current or inductive value are too big, the peak power dissipation is too high, an external Zener plus diode can perform a demagnetisation versus ground or versus Vs (see Figure 5: "Short-circuit operation waveforms" and Figure 6: "Input comparator hysteresis"). The breakdown voltage of the external Zener diode must be chosen considering the internal clamping voltage (V cl) and the supply voltage (Vs) according to: Equation 4: Vz < Vcl(min.)-Vs(max.) for demagnetisation versus ground or Equation 5: Vs(max.) < Vz < Vcl(min.) for demagnetisation versus Vs. Figure 6: Input comparator hysteresis Figure 7: External demagnetisation circuit (versus ground) DocID1637 Rev 5 13/19 Demagnetization of inductive loads L6377 Figure 8: External demagnetisation circuit 14/19 DocID1637 Rev 5 L6377 6 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. 6.1 SO-14L package information Figure 9: SO-14L package outline 0016019 G DocID1637 Rev 5 15/19 Package information L6377 Table 6: SO-14L package mechanical data mm Dim. Min. Typ. Max. A 1.35 1.75 A1 0.10 0.25 A2 1.10 B 0.19 C 1.14 D 8.55 8.75 E 3.80 4.00 e 3.30 1.65 0.25 1.52 1.78 1.27 H 5.80 6.20 h 0.25 0.50 L 0.40 1.27 k 0 ddd 8 0.10 Dimension D doesn't include mold flash, protrusions or gate burrs, which do not exceed 0.15 mm per side. Drawing dimensions include single and matrix versions. 16/19 DocID1637 Rev 5 L6377 Package information Figure 10: SO-14L recommended footprint outline DocID1637 Rev 5 17/19 Revision history 7 L6377 Revision history Table 7: Document revision history 18/19 Date Revision Changes 17-Aug-2001 1 Initial release. 19-Apr-2005 2 Changed style sheet 22-Jun-2007 3 Changed style sheet 25-Feb-2008 4 Removed obsolete package DIP-14 24-Jul-2015 5 Updated IRESET and VRESET parameter in the table of maximum ratings. 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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. © 2015 STMicroelectronics – All rights reserved DocID1637 Rev 5 19/19