NTE1834 Integrated Circuit Dual Reversible Motor Driver Description: The NTE1834 is a monolithic IC in a 10–Lead SIP type package designed for use as a dual reversible motor driver. This device contains two independent circuits designed for driving brush–type DC motors. The control logic inputs are compatible with CMOS devices. The motor torque can be controlled by varying the motor voltage with the control input (Pin8). With few external components required and dual circuit configuration, the NTE1834 offers great benefits in terms of reduced components and reduced circuit board space. Features: D Dual Reversible Motor Drivers Implemented on a Single Chip (Simultaneous Dual Circuit Operation is Not Possible) D Minimum External Components Required D Control Inputs Directly Compatible with CMOS Logic (Protection Resistors are Required if CMOS Output Voltage Exceeds 5V) D Internal Motor Driving Power Transistors D Internal Surge Suppressors D Internal Thermal Shut–Down Circuit Applications: D VCRs D Tape Decks Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Input Voltage Range, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +5V Output Current (Note 1), IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6A Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Note 1. Pulse Width = 200µs, Duty Cycle = 1% Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Parameter Supply Voltage Symbol Test Conditions Min Typ Max Unit VCC1 8 – 18 V VCC2 8 – 18 V VR 0 – 18 V Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified) Parameter Symbol Test Conditions RL = ∞, Pin4, Pin5, and Pin6 = “L” Level Min Typ Max Unit – 12 24 mA Supply Current ICC Input Low Level Voltage (Pin4, Pin5, and Pin6) VIL – – 1.0 V Input High Level Voltage (Pin4, Pin5, and Pin6) VIH 4.0 – – V Output Low Level Voltage (Pin4, Pin5, and Pin10) VOL Pin8 = Open, IO = 500mA – 0.8 1.5 V Output High Level Voltage (Pin4, Pin5, and Pin10) VOH Pin8 = Open, IO = 500mA 10 10.5 – V Output Leakage Current IOL RL = ∞, Pin4, Pin5, and Pin6 = “L” Level, Current flowing to Pin9 – – 1 mA Voltage Stability (Pin2) ∆V2 VR = 6V with respect to Pin8 IO(2) = 500mA –0.5 – 0.5 V IO(3) = 500mA –0.5 – 0.5 V (Pin3) ∆V3 (Pin10) ∆V10 IO(10) = 500mA –0.5 – 0.5 V Drain Current (Pin2) I8 (2) VR = 6V, IO(2) = 500mA, Pin2 = “H” Level –0.5 – 0.5 V (Pin3) I8 (3) VR = 6V, IO(3) = 500mA, Pin3 = “H” Level –0.5 – 0.5 V (Pin10) I8 (10) VR = 6V, IO(10) = 500mA, Pin10 = “H” Level –0.5 – 0.5 V IB Sink current at Pin9 when Pin4, Pin5, and Pin6 are low and one output pin is at –1V – – 0.3 A Backlash Current Thermal Shut–Down Operate Temperature TON – 150 – °C Thermal Shut–Down Release Temperature TOFF – 100 – °C Input/Output Truth Table: Input Output Function Pin4 Pin5 Pin6 Pin10 Pin2 Pin3 L L X L L L Brake H L L H L OPEN Current flows from Pin10 to Pin2 H L H L H OPEN Current flows from Pin2 to Pin10 L H L H OPEN L Current flows from Pin10 to Pin3 L H H L OPEN H Current flows from Pin3 to Pin10 H H X L L L Brake X = Don’t Care Precautions: 1. While the control input pins of the NTE1834 can be directly connected to MOS logic outputs, it is recommended that you insert a series protection resistor in the range 1kΩ to 10kΩ between the devices. 2. To improve reliability, be sure to temporarily put the device in brake mode before reversing the direction of rotation of the motor. A brake mode duration of more than 10µs is recommended. 3. The recommended power on sequence is one in which VCC1 (Pin7) is the first turned on and the last turned off. Pin Connection Diagram (Front View) 10 Output 1 9 VCC2 8 VR 7 VCC1 6 Input 3 5 Input 2 4 Input 1 3 Output 3 2 Output 2 1 GND 1.043 (26.5) .984 (25.0) .141 (3.6) .409 (10.4) 1.063 (27.0) .700 (17.78) .251 (6.4) .330 (8.38) 1 10 .100 (2.54) .897 (22.8) .070 (1.78)