L6376

L6376 0.5A HIGH-SIDE DRIVER QUAD INTELLIGENT POWER SWITCH 0.5 A FOUR INDEPENDENT OUTPUTS 9.5 TO 35 V SUPPLY VOLTAGE RANGE INTERNAL CURRENT LIMIT NON-DISSIPATIVE OVER-CURRENT PROTECTION THERMAL SHUTDOWN UNDER VOLTAGE LOCKOUT WITH HYSTERESYS DIAGNOSTIC OUTPUT FOR UNDER VOLTAGE, OVER TEMPERATURE AND OVER CURRENT EXTERNAL ASYNCHRONOUS RESET INPUT PRESETTABLE DELAY FOR OVERCURRENT DIAGNOSTIC OPEN GROUND PROTECTION IMMUNITY AGAINST BURST TRANSIENT (IEC 801-4) ESD PROTECTION (HUMAN BODY MODEL ± 2KV) MULTIPOWER BCD TECHNOLOGY POWERDIP 16+2+2 PowerSO20 ORDERING NUMBERS: L6376 (DIP L6376PD (PSO) DESCRIPTION This device is a monolithic quad Intelligent Power Switch in Multipower BCD Technology, for driving inductive, capacitive or resistive loads. Diagnostic for CPU feedback and extensive use of electrical protections make this device inherently indistructible and suitable for general purpose industrial applications. BLOCK DIAGRAM 220nF 22nF VS V CP VC VP VS CHARGE PUMP V CP VS RS CURRENT LIMIT DRIVER OVC GND I1 + - O1 UV SHORT CIRCUIT CONTROL I2 + O2 I3 + O3 I4 + O4 R + OFF OSC 1.25V OFF DELAY CDOFF DIAG OVT UV ON OSC ON DELAY CDON D94IN076C November 1996 1/12 L6376 ABSOLUTE MAXIMUM RATINGS (Pin numering referred to PowerSO20 package) Symbol Vs Vs - Vout Vid Iid Ii Vi Iout Vout E il Ptot V diag Idiag Top Tj Tstg 19 12,13, 14,15, 18 2, 3, 8, 9 16, 17 Pin 6 Parameter Supply Voltage (tw < 10ms) Supply Voltage (DC) Difference between supply voltage and output voltage Externally Forced Voltage Externally Forced Current Channel Input Current (forced) Channel Input Voltage Output Current (see also Isc) Output Voltage Energy Inductive Load (Tj =125°C); Each Channel Power Dissipation External voltage Externally forced current Ambient temperature, operating range Junction temperature, operating range (see Overtemperature Protection) Storage temperature Value 50 40 internally limited -0.3 to 7 ±1 ±2 -0.3 to 40 internally limited internally limited 200 internally limited -0.3 to Vs+0.7 -10 to 10 -25 to 85 -25 to 125 -55 to 150 V mA °C °C °C mJ V mA mA V Unit V V PIN CONNECTIONS (Top view) VS VCP O2 O1 GND GND I1 I2 I3 I4 1 2 3 4 5 6 7 8 9 10 D93IN030B 20 19 18 17 16 15 14 13 12 11 VC VP O3 O4 GND GND DIAG R OFF DELAY ON DELAY GND O4 O3 VP VC VS VCP O2 O1 GND 1 2 3 4 5 6 7 8 9 10 D95IN217 20 19 18 17 16 15 14 13 12 11 GND DIAG R OFF DELAY ON DELAY I4 I3 I2 I1 GND POWERDIP PowerSO20 2/12 L6376 PIN DESCRIPTION (Pin numering referred to PowerSO20 package). No Pins Function Positive supply voltage. An internal circuit, monitoring the supply voltage, maintains the IC in off-state until VS reaches 9V or when VS falls under 8.5V. The diagnostic is availlable since VS = 5V. Switch driver supply. To minimize the output drop voltage, a supply of about 10V higher than VS is required. In order to use the built-in charge pump, connect a filter capacitor from pin1 to pin. The suggested value assures a fast transition and a low supply ripple even in worse condition. Using the four channels contemporarily, values less than 68nF have to be avoided. High side outputs. Four independently controlled outputs with built-in current limitation. Ground and power dissipating pins. These pins are connected to the bulk ground of the IC, so are useful for heat dissipation. Control inputs. Four independent control signals. The output is held off until the voltage at the corresponding input pin reaches 1.35V and is turned off when the voltage at the pin goes below 1.15V. Programmable ON duration in short circuit. If an output is short circuited to ground or carryng a current exceeding the limit, the output is turned-off and the diagnostic activation are delayed. This procedure allows the driving of hard surge current loads. The delay is programmed connecting a capacitor (50pF to 15nF) versus ground with the internal time constant of 1.28µs/pF. The function can be disabled short circuiting this pin to ground. Programmable OFF duration in short circuit. After the short circuit or overcurrent detection, the switch is held off before the next attempt to switch on again. The delay is programmed connecting a capacitor (50pF to 15nF) versus ground with the internal time constant of 1.28µs/pF. Short circuiting this pin to ground the OFF delay is 64 times the ON delay. Asyncronous reset input. This active low input (with hysteresis), switch off all the outputs independently from the input signal. By default it is biased low. Diagnostic output. This open drain output reports the IC working condition. The bad condition (as undervoltage, overcurrent, overtemperature) turns the output low. Pump oscillator voltage. At this pin is available the built-in circuitry to supply the switch driver at about 10V higher than VS. To use this feature, connect a capacitor across pin 4 and pin 5. The suggested value assures a fast transition and a minimum output drop voltage even in worse condition. Using the four channels contemporarily, values less than 6.8nF have to be avoided. Bootstrapped voltage. At this pin is available the 11V oscillation for the charge pump, at a typical frequency of 200kHz. 6 VS 7 VCP 2, 3, 8, 9 1, 10, 11, 20 12,13, 14, 15 O1, O2, O3, O4 GND I1, I2, I3, I4 16 ON DELAY 17 OFF DELAY 18 R 19 DIAG 5 VC 4 VP 3/12 L6376 ELECTRICAL CHARACTERISTICS (Vs = 24V; Tj = -25 to 125°C; unless otherwise specified.) DC OPERATION (Pin numering referred to PowerSO20 package). Symbol Vs V sth Vshys Iqsc V il Vih Ibias Vihys Θlim ΘH Isc Output Voltage Drop Iolk Vcl Vol Idlkg 19 Vdiag Idch 16, 17 2, 3, 8, 9 Output Leakage Current Internal Voltage Clamp (Vs-Vo each Output) Low State Output Voltage Diagnostic Output Leakage Diagnostic Output Voltage Drop Delay Capacitors Charge Current 12,13, 14,15, 18 6 Pin Parameter Supply Voltage UV UpperThreshold UV Hysteresis Quiescent Current Input Low Level Input High Level Input Bias Current Input Comparators Hysteresis OVT Upper Threshold Threshold Hysteresis Short Circuit Current Vs=9.5 to 35V; Rl =2Ω Iout =500mA; Tj =25°C Iout =500mA; Tj =125°C Vo=0V; Vi