1 A Dual H
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© Semiconductor Components Industries, LLC, 2007 October, 2007 - Rev. 1 1 Publication Order Number: NCV7702B/D NCV7702B 1 A Dual H-Bridge Driver This dual full-bridge driver IC is intended for 14 V automotive stepper and DC motor applications. Its four half-bridge outputs are configured as two channels and are programmed by six TTL compatible inputs, allowing flexible control of bridge operation. The device operates in standby mode, run mode, or brake mode and typically consumes less than 1 A while in standby. In run mode, each half-bridge output can deliver load current in either direction. Brake mode activates the low side transistors or high side transistors at the selected outputs. On-chip recirculation diodes are provided, and the IC has multiple fault protection modes. Overcurrent detection protects against shorted loads between outputs and shorts to supply or ground at each output. An overcurrent fault condition activates an internal timer, which modulates faulted outputs at low duty cycle. An overcurrent condition in one channel does not affect operation in the other. Overvoltage and overtemperature detection are also provided, and turn off all bridge outputs during these fault conditions. Recovery from all fault conditions is automatic; the IC will resume normal operation in its previously selected mode upon fault resolution. Diagnostic ability is provided by two open-collector STATUS outputs which report the fault status of each channel independently during overcurrent faults, and together during overvoltage or overtemperature faults. Features •Single 7 V-16 V Supply •Low Standby Current: < 1.0 A Typically •3.3 V / 5 V Compatible Inputs •Independent Channel Enable •Channels Configurable as: Full-Bridge Drive Half-Bridge, High Side or Low Side Drive •On-Chip Recirculation Diodes •Fault Protection with Automatic Recovery for: Overcurrent Overvoltage Overtemperature •Fault Diagnostic STATUS Outputs •Internally Fused Leads in SO–24L Package •AEC Qualified •PPAP Capable •These are Pb-Free Devices* Applications •Automotive and Industrial Driver for: DC or Stepper Motors Relays or Solenoids Unipolar or Bipolar Loads *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Device Package Shipping† ORDERING INFORMATION MARKING DIAGRAM SO-24L DW SUFFIX CASE 751E 1 24 PIN CONNECTIONS PGND PGND PGND PGND PGND PGND PGND PGND STATUS1 STATUS2 OUT1A OUT2A OUT1B OUT2B VB1 VB2 IN1A IN2A IN1B IN2B 1 24 EN1 EN2 AGND CT A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb-Free Device 1 NCV7702B AWLYYWWG 24 http://onsemi.com †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCV7702BDWG SO-24L (Pb-Free) 31 Units/Rail NCV7702BDWR2G SO-24L (Pb-Free) 1000 Tape & Reel

NCV7702B http://onsemi.com 2 Figure 1. Block Diagram OC OC Bandgap Regulator Half-Bridge Control Half-Bridge Control Overcurrent Duty Cycle Half-Bridge Control Half-Bridge Control STATUS1 OUT1A VB1 OUT1B OUT2A VB2 OUT2B STATUS2 Overvolt. Overtemp. VBG OV OT OC OC VBG OV OT OV OT PGND PGND PGND PGND EN1 IN1A IN1B CT AGND IN2B IN2A EN2 PGND PGND PGND PGND MAXIMUM RATINGS Rating Value Unit Power Supply Voltage, VB -0.5 to 30 V Peak Transient Voltage (46 V Load Dump @ VB = 14 V) 60 V Logic Inputs & Status Outputs -0.3 to 7.0 V Junction Temperature, TJ 150 °C Storage Temperature Range -65 to 150...

NCV7702B http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (7.0 V VB 16 V, -40°C TJ 125°C; unless otherwise specified.) Notes 2 and 3. Characteristic Test Conditions Min Typ Max Unit General Characteristics Quiescent Current Standby Mode, VB 12.8 V Run Mode, IOUT = 750 mA, Both Channels - - 1.0 - 10 40 A mA Logic Inputs High Level Input Voltage, VIH - 2.0 - - V Low Level Input Voltage, VIL - - - 0.8 V INX Input Current VIN = 5.0 V VIN = 0 V - -5.0 00 5.0 - A A ENX Input Current VIN = 5.0 V VIN = 0 V - -5.0 130 0 200 5.0 A A ENX Delay, tPE 50% of ENX to 50% of OUTX; Note 4 Turn ON Turn Off --...

NCV7702B http://onsemi.com 4 PACKAGE PIN DESCRIPTION PACKAGE PIN # PIN SYMBOL FUNCTION 1 VB1 Power supply input voltage; overvoltage detection occurs at this pin. 2 OUT1B Half-bridge output controlled by IN1B. 3 OUT1A Half-bridge output controlled by IN1A. 4 STATUS1 Diagnostic output; reports channel #1 fault condition. 5 PGND Power supply return. 6 PGND Power supply return. 7 PGND Power supply return. 8 PGND Power supply return. 9 IN1A Logic level input. 10 IN1B Logic level input. 11 AGND Analog supply return; reference for external CT capacitor, device substrate. 12 EN1 Enable for OUT1A...

NCV7702B http://onsemi.com 5 INPUT LOGIC TABLE EN1 = EN2 = 0 = Standby Mode Channel #1 Channel #2 EN1 IN1A IN1B OUT1A OUT1B Mode EN2 IN2A IN2B OUT2A OUT2B Mode 1 0 0 Low Low Brake Low 1 0 0 Low Low Brake Low 1 0 1 Low High Run 1 0 1 Low High Run 1 1 0 High Low Run 1 1 0 High Low Run 1 1 1 High High Brake High 1 1 1 High High Brake High 0 X X |Z| |Z| Off 0 X X |Z| |Z| Off NOTE: X = Don't Care; |Z| = Output Off. STATUS OUTPUT TABLE STATUS1 STATUS2 Fault Diagnostic 1 1 No Fault. 0 1 Channel 1 Overcurrent; Note 9 1 0 Channel 2 Overcurrent; Note 9 0 0 Overvoltage, Overtemperature or Overcurrent...

NCV7702B http://onsemi.com 6 Figure 3. ENX Propagation Delay VIH VIL ON OFF OUTX ENX tPE T T VIH VIL VSRC ½ OUTX VB INX tPI tDB tPI tDB Figure 4. OUTX Propagation Delay and Dead Band Timing 60% 40% VSNK Figure 5. Overcurrent, Status and Duty Cycle Timing T VSH VSL IOC ION OFF VCH VDC 0 OUTX STATUSX CT tOFF tON

NCV7702B http://onsemi.com 7 Functional Description The NCV7702B is arranged as four half-bridge drivers in two independent channels. Each channel can be operated as a full-bridge or half-bridge to drive multiple load configurations. Separate ENable inputs are used to control which channel is active. Each ENable input has a nominal 50 k internal pull-down resistor to ensure that the outputs remain off during power-up. The four INX control inputs address each half-bridge output, and each output follows the state of its input. When INX is at logic one, OUTX is sourcing current from the VB...