UDN2943

2943 HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER 2943 Data Sheet 29318.4B HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER Designed for use as a general-purpose motor driver, the UDN2943Z half-bridge driver combines high-current sink and source drivers with logic stages, level shifting, diode transient protection, and a voltage regulator for single-supply operation. Capable of operating in extremely harsh environments, this device can withstand high ambient temperatures, output overloads, and repeated power supply transient voltages without damage. The driver can be used in pairs for full-bridge operation, or as triplets in three-phase brushless dc motordrive applications. 1 ABSOLUTE MAXIMUM RATINGS Supply Voltage, Range V S .... 8.5 V to 35 V* Output Voltage, V CE(sus) ....................... 24 V Input Voltage Range, V IN .... -0.3 V to +18 V Continuous Output Current, IOUT ...... ±1.0 A Package Power Dissipation, P D ....................................... See Graph Operating Temperature Range, T A ................................. -20°C to +85°C Storage Temperature Range, T S ............................... -55 °C to +150°C *Internal high-voltage shutdown above 24 V. U E N C I T T C N N U RE O D E C O S I PR EF Y D R NL R O O F — 2 3 4 5 The input circuitry is compatible with TTL, low-voltage CMOS, and NMOS logic. Logic lockout prevents both source and sink drivers from turning ON simultaneously. Each driver is turned ON by an activelow input, making the UDN2943Z especially desir...