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5803DZ, 5804, 5804B

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Info of 5803DZ
Info of 5804
Info of 5804B

5803DZ, 5804, 5804B Selling Leads, Datasheet

MFG:'IOR Package Cooled:06+ D/C:'SOP8

5803DZ, 5804, 5804B Datasheet download

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Part Number: 5803DZ

MFG: 'IOR

Package Cooled: 06+

D/C: 'SOP8

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5804 General Description

Combining low-power CMOS logic with high-current and high-voltage bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/ drivers provide complete control and drive for a four-phase unipolar steppermotor with continuous output current ratings to 1.25 A per phase (1.5 A startup) and 35 V.

The CMOS logic section provides the sequencing logic, DIRECTION and OUTPUT ENABLE control, and a power-on reset function. Three stepper-motor drive formats, wave-drive (one-phase), two-phase, and halfstep are externally selectable. The inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL or LSTTL may require the use of appropriate pull-up resistors to ensure a proper input-logic high.

The wave-drive format consists of energizing one motor phase at a time in an A-B-C-D (or D-C-B-A) sequence. This excitation mode consumes the least power and assures positional accuracy regardless of any winding inbalance in the motor. Two-phase drive energizes two adjacent phases in each detent position (AB-BC-CD-DA). This sequence mode offers an improved torque-speed product, greater detent torque, and is less susceptible to motor resonance. Half-step excitation alternates between the one-phase and two-phase modes (A-AB-B-BC-C-CD-D-DA), providing an eight-step sequence.

The bipolar outputs are capable of sinking up to 1.5 A and withstanding 50 V in the off state (sustaining voltages up to 35 V). Ground-clamp and flyback diodes provide protection against inductive transients. Thermal protection circuitry disables the outputs when the chip temperature is excessive.

Both devices are rated for operation over the temperature range of -20°C to +85°C. The UCN5804B is supplied in a 16-pin dual in-line plastic batwing package with a copper lead frame and heat-sinkable tabs for improved power dissipation capabilities; the UCN5804LB is supplied in a 16-lead plastic SOIC batwing package with a copper lead frame and heat-sinkable tabs.

5804 Maximum Ratings

Output Voltage, VCE ...............................50 V
Output Sustaining Voltage,
   VCE (sus) .............................................35 V
Output Sink Current, IOUT .................... 1.5 A
Logic Supply Voltage, V_DD .................... 7.0 V
Input Voltage, V_IN ................................ 7.0 V
Package Power Dissipation,
   P_D ............................................. See Graph
Operating Temperature Range,
   T_A ....................................... -20 to +85
Storage Temperature Range,
   T_S ..................................... -55 to +150

5804 Features

* 1.5 A Maximum Output Current
* 35 V Output Sustaining Voltage
* Wave-Drive, Two-Phase, and Half-Step Drive Formats
* Internal Clamp Diodes
* Output Enable and Direction Control
* Power-On Reset
* Internal Thermal Shutdown Circuitry

5804 Connection Diagram

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