L9997

® L9997ND DUAL HALF BRIDGE DRIVER HALF BRIDGE OUTPUTS WITH TYPICAL RON = 0.7Ω OUTPUT CURRENT CAPABILITY ±1.2A OPERATING SUPPLY VOLTAGE RANGE 7V TO 16.5V SUPPLY OVERVOLTAGE PROTECTION FUNCTION FOR VVS UP TO 40V VERY LOW QUIESCENT CURRENT IN STANDBY MODE < 1µA CMOS COMPATIBLE INPUTS WITH HYSTERESIS OUTPUT SHORT-CIRCUIT PROTECTION THERMAL SHUTDOWN REAL TIME DIAGNOSTIC: THERMAL OVERLOAD, OVERVOLTAGE DESCRIPTION The L9997ND is a monolithic integrated driver, in BCD technology intended to drive various loads, BLOCK DIAGRAM VS 1 MULTIPOWER BCD TECHNOLOGY SO20 (12+4+4) ORDERING NUMBERS: L9997ND L9997ND013TR including DC motors. The circuit is optimized for automotive electronics enviromental conditions. VS DIAG 11 EN 10 ENABLE REFERENCE BIAS PROTECTION FUNC TIONS 5V VS IN1 12 OUT1 DRIVER 1 19 M VS IN2 9 OUT2 DRIVER 2 2 GND 4...7, 14...17 April 1999 1/9 L9997ND ABSOLUTE MAXIMUM RATINGS Symbol V VSDC VVSP IOUT VIN1,2 V EN VDIAG IOUT IDIAG DC Supply Voltage Supply Voltage Pulse (T < 400ms) DC Output Current DC Input Voltage Enable Input Voltage DC Output Voltage DC Output Short-circuit Current -0.3V < VOUT < VS + 0.3V DC Sink Current -0.3V < VDG < 7V Parameter Value -0.3 to 26 40 ±1.8 -0.3 to 7 -0.3 to 7 -0.3 to 7 internally limited internally limited Unit V V A V V V PIN CONNECTION (Top view) VS OUT2 N.C. GND GND GND GND N.C. IN2 EN 1 2 3 4 5 6 7 8 9 10 D95AT166 20 19 18 17 16 15 14 13 12 11 N.C. OUT1 N.C. GND GND GND GND N.C. IN1 DIAG PIN FUNCTIONS N. 1 2 3, 8, 13, 18,20 4 to 7, 14 to 17 9 10 11 12 Name VS OUT2 NC GND IN2 EN DIAG IN1 Supply Voltage Channel 2: Push-Pull power output with intrinsic body diode NC: Not Connected Ground: signal - and power - ground, heat sink Input 2: Schmitt Trigger input with hysteresis (non-inverting signal control) Enable: LOW or not connected on this input switches the device into standby mode and the outputs into tristate Diagnostic: Open Drain Output that switches LOW if overvoltage or overtemperature is detected Input 1: Schmitt Trigger input with hysteresis (non-inverting signal control) Function THERMAL DATA Symbol TjTS TjTSH Rth j-amb Rth j-pins 2 Parameter Thermal Shut-down Junction Temperature Thermal Shut-down Threshold Hysteresis Thermal Resistance Junction-Ambient Thermal Resistance Junction-Pins (1) Value 165 25 50 15 Unit °C K K/W K/W (1) With 6cm on board heatsink area. 2/9 L9997ND ELECTRICAL CHARACTERISTICS (7V < VS < 16.5V; -40°C < TJ < 150 °C; unless otherwise specified.) Symbol IVS_SB IVS VENL VENH VENthh IEN VIN1,2L VIN1,2H VIN1,2thh IIN1,2 RON OUT1,2 Parameter Quiescent Current in Standby Mode Supply Current Low Enable Voltage High Enable Voltage Enable Threshold Hysteresis Enable Input Current Low Input Voltage High Input Voltage Input Threshold Hysteresis Input Bias Current ON-Resistance to Supply or GND Output Current Limitation Diagnostic Output Drop IDIAG = 0.5mA, EN = HIGH Overvoltage or Thermal Shutdown 17 See Fig. 2; VVS = 13.5V Measured with 93Ω load 19 50 30 10 2 Rising Delay Time Falling Delay Time Rise Time Fall Time 115 115 30 60 25 50 VIN = 0 VIN = 5V, EN = HIGH IOUT = ± 0.8A; V VS = 7V; Tj = 125°C IOUT = ±0.8A; VVS = 12V; Tj = 125°C IOUT = ± 0.8A; V VS = 12V; Tj = 25°C 1.2 -3 2 3.5 1 0 10 1.2 1.1 0.7 1.6 1 50 2.8 2.25 2.2 0.6 VEN = 5V 3.5 1 85 250 1.5 Test Condition VEN < 0.3V; VVS