L9305A – DUAL HIGH CURRENT RELAY DRIVER

Part Number : L9305A

Function : DUAL HIGH CURRENT RELAY DRIVER

Manufactures : STMicroelectronics

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Description :

L9305A DUAL HIGH CURRENT RELAY DRIVER . . . . . . HIGH OUTPUT CURRENT HYSTERESIS INPUT COMPARATOR WITH WIDE RANGE COMMON MODE OPERATION AND GROUND COMPATIBLE INPUTS INPUT COMPARATOR HYSTERESIS INTERNAL THERMAL PROTECTION WITH HYSTERESIS INTERNAL OUTPUT OVERVOLTAGE CLAMPING SINGLE SUPPLY VOLTAGE (3.5V up to 18V) Powerdip (8 + 8) ORDERING NUMBER : L9305A DESCRIPTION The L9305A is a monolithic interface circuit with differentialinput comparator and open collector output able to sink high current specifically to drive relays, lamps, d.c. motors. Particular care has been taken to protect the device against destructive failures – short circuit of outputs to VS, output overvoltages, supply overvoltage. BLOCK DIAGRAM A built in thermal shut-down switches off the device when the IC’s internal dissipationbecomes too great and the chip temperature exceeds a set security threshold. A hysteresis input comparatorincreases the interface’s noise immunity, allowing the correct use also in critical environments as automotive or industrial applications. January 1992 1/6 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. L9305A ABSOLUTE MAXIMUM RATINGS Symbol V5 V7 IZS VI VI Tj, Tstg Ptot Io Supply Voltage Driver Supply Voltage Supply Zener Clamp Current (DC) (PULSED) (**) Comparator Input Voltage Range Differential Input Voltage Junction and Storage Temperature Power Dissipation at Tamb = 85°C Output Current Parameter Value (*) 20 26 30 80 – 0.2 to 24 24 – 55 to 150 928 Int. limited Unit V V mA mA V V °C mW (*) The maximum allowed supply voltage without series resistors is limited by the built-in zener protection diodes (**) Ton ≤ 2.5 ms ; repetition time ≥ 30 ms. PIN CONNECTION (top view) THERMAL DATA Symbol R th j-pins Rth j-amb Parameter Thermal Resistance Junction to pins Thermal Resistance Junction to Ambient Max. Max. Value 15 70 Unit °C/W °C/W 2/6 L9305A ELECTRICAL CHARACTERISTICS (V5 = 14.4V, Tamb = 25°C ; refer to block diagram unless otherwise specified) Symbol V5 IS ”st.by” ISON VCZ VZS VIH IB IOS CMR ISC ICD VCSAT Parameter Supply Voltage Supply Current Supply Current VI + – VI – ≥ 70mV VI – VI – + Test Conditions Min. 3.5 Typ. 5 18 Max. 18- 8 30 27 27 70 Unit V mA mA V V mV µA nA V A A mA mA V > 70mV 20 20 20 Output Clamping Voltage (for IOUT = 1A each channel) Supply Voltage Clamp Comparator Hysteresis Input Bias Current Input Offset Current Input Common Mode Range IZS = 10mA VI – VI = 200mVpp f = 1kHz V V + + + – = V = 0V = V – = 0V 0 Vout = 16.5V Vout = 6V DC Pulsed (**) + – 0.2 ± 20 1 ± 200 V5 – 1.6 0.85 2.5 300 600 1 V5 = 3.5V to 18V – Output Short Circuit Current for VI – VI ≥ 70mV Each Channel Driver Transistor Capability Current VI – VI ≥ 70mV VI – VI ≥ 70mV ICD = 100mA ICOUT = 1.2A – + – + On Status Saturation Voltage IOL Output Leakage Current VI + – VI ≥ 70mV […]

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L9305A Datasheet


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