VIN. Logic Input Voltage Range. -0.3 to +7. V. Vsense. Sense Output Voltage. 1.5. V .... 2.54. 0.100. F. 6.86. 0.270. I. 4.32. 0.170. L. 3.18. 0.125. DIP24 (20+2+2) ...
ABLE TO DRIVE BOTH WINDINGS OF BIPOLAR STEPPER MOTOR OUTPUT CURRENT UP TO 750mA EACH WINDING WIDE VOLTAGE RANGE 10V TO 50V HALF-STEP, FULL-STEP AND MICROSTEPPING MODE BUILT-IN PROTECTION DIODES INTERNAL PWM CURRENT CONTROL LOW OUTPUT SATURATION VOLTAGE DESIGNED FOR UNSTABILIZED MOTOR SUPPLY VOLTAGE INTERNAL THERMAL SHUTDOWN DESCRIPTION The UDN2916A is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors. The UDN2916A with a few external components form a complete control and drive circuit for LSTTL or microprocessor controlled stepper motor system. The power stage is a dual full bridge capable of sustaining 50V and including four diodes for current recirculation.
Powerdip 20+2+2 ORDERING NUMBER: UDN2916A
A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction. An internal pulse-width-modulation (PWM) controls the output current to 750mA with peak startup current up to 1A. Wide range of current control from 750mA (each bridge) is permitted by means of two logic inputs and an external voltage reference. A phase input to each bridge determines the load current direction. A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.
BLOCK DIAGRAM
November 1991 ThAdvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1/8
UDN2916A PIN CONNECTION (Top view)
PIN FUNCTIONS N°
Name
1;2
OUTPUT A
3;23
SENSE RESISTOR
Connection to Lower Emitters of Output Stage for Insertion of Current Sense Resistor
4;22
COMPARATOR INPUT
Input connected to the comparators. The voltage across the sense resistor is feedback to this input throught the low pass filter RC CC. The higher power transistors are disabled when the sense voltage exceeds the reference voltage of the selected comparator. When this occurs the current decays for a time set by RT C T (toff = 1.1 RT CT). See fig. 1.
5;21
OUTPUT B
6;19
GROUND
See pins 7;18
7;18
GROUND
Ground Connection. With pins 6 and 19 also conducts heat from die to printed circuit copper.
8;20
INPUT 0
See INPUT 1 (pins 9;17)
9;17
INPUT 1
These pins and pins 8;20 (INPUT 0) are logic inputs which select the outputs of the comparators to set the current level. Current also depends on the sensing resistor and reference voltage. See Funcional Description.
10;16
PHASE
This TTL-compatible logic inputs sets the direction of current flow through the load. A high level causes current to flow from OUTPUT A (source) to OUTPUT B (sink). A schmitt trigger on this input provides good noise immunity and a delay circuit prevents output stage short circuits during switching.
11;15
REFERENCE VOLTAGE
A voltage applied to this pin sets the reference voltage of the comparators, this determining the output current (also thus depending on Rs and the two inputs INPUT 0 and INPUT 1).
12;14
RC
A parallel RC network connected to this pin sets the OFF time of the higher power transistors. The pulse generator is a monostable triggered by the output of the comparators (toff = 1.1 RT CT).
13
Vss - LOGIC SUPPLY
24
VS - LOAD SUPPLY
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Function See pins 5;21
Output Connection. The output stage is a ”H” bridge formed by four transistors and four diodes suitable for switching applications.
Supply Voltage Input for Logic Circuitry Supply Voltage Input for the Output Stages.
UDN2916A ABSOLUTE MAXIMUM RATINGS Symbol
Parameter
VS
Supply Voltage
Io
Output Current (peak)
Io
Output Current (continuous)
VSS
Logic Supply Voltage
VIN
Logic Input Voltage Range
Value
Unit
50
V
±1
A
±0.75
A
7
V
-0.3 to +7
V
Vsense
Sense Output Voltage
1.5
V
TJ
Junction Temperature
+150
°C
Top
Operating Temperature Range
0 to 70
°C
Tstg
Storage Temperature Range
-55 to +150
°C
THERMAL DATA Symbol
Description
R thj-case Thermal Resistance Junction-case R thj-ambient Thermal Resistance Junction-ambient
Max Max
Value
Unit
14 60
°C/W °C/W
ELECTRICAL CHARACTERISTICS (Tamb = 25°C, Ttab ≤ 70°C, VS = 50V, VSS = 4.75V to 5.25V, VREF = 5V; unless otherwise specified) See fig. 3. Symbol
THERMAL DATA. Symbol. Parameter. Value. Unit .... Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com. PBL3717A.
sInternal Block Diagram. sDiagram of Standard External Circuit (Recommended Circuit Constants). 6. Reg. Reg. 1. 5. 8. V. S. 14. IN. B. IN. A. 7. R. SA. 2. 3. 4. 12.
The MC3479 is designed to drive a twoâphase stepper motor in the ... DC ELECTRICAL CHARACTERISTICS (Specifications apply over the recommended supply voltage and temperature .... Control. OIC. This input is relevant only in the half step mode (Pin 9
The L6219 is a bipolar monolithic integrated cir- ... a complete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system. .... ELECTRICAL CHARACTERISTICS (Tj = 25°C, VS = 46V, VSS = 4.75V to 5.25V, VREF ...
GRATED BOOTSTRAP .BUILT IN ... may be selected in three steps by means of two logic ... 3. SUPPLY VOLTAGE B. Supply Voltage Input for Half Output Stage.
the 3-STATE feature. When enabled, the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the ...
2. Figure 2 Waveform diagram. Figure 1 Block diagram. Figure 4 Power derating curve. Figure 3 Total ... motor, can be chosen, as shown in the following table.
two DC motors. ... trols the output current to 750mA with peak start- ... SENSE RESISTOR Connection to Lower Emitters of Output Stage for Insertion of Current ...
Note: Applications on this page are only examples, and this combination of devices is not the best. Character ... Pin 6: CE. Pin 7: R. Pin 7: OE. Pin 9: CPO. Pin 9: NC. Package marking. lA. lB ..... Figure 1 Static Electricity Countermeasures for Sem
The UDN2917EB motor driver is designed to drive both windings of a bipolar stepper motor or bidirectionally control two dc motors. .... ELECTRICAL CHARACTERISTICS at T. A .... in life-support devices or systems without express written approval. ... I
total source plus sink at 500 mA). For PWM current control, the maximum output current is deter- mined by the user's selection of a reference voltage and sensing.
n Meets EIA-232D and CCITT V.28 standards n LOW power ... Order Number DS14C88N, or DS14C88M. See NS Package ... If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/. Distributors for ... â65
POST OFFICE BOX 655303 â¢DALLAS, TEXAS 75265 ... testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in ... Package thermal impedance, θJA (see Note 2): D package.
... Positioner (Motor Control). Microwire is a registered trademark of National Semiconductor Corporation. ... medical and consumer electronics. He has received.
Types: Variable Reluctance. Permanent Magnet ... Variable-reluctance stepper-motor designed to go into saturation ... Each pulse moves motor a discrete angle â step angle .... What is the equivalent-circuit representation of a stepper-motor?
N. N. 12 Noise level of the motor, measurement distance 4 cm from top of shaft, not mounted, without load, angular speed 200°/s. 40. dB(A). 13 Acceleration of ...
effective integrated drivers, bipolar motors are now more common. ... chopping control circuit so that it is maintained within the rated ... fects the stability of the system as well as the dis- sipation. .... The first cause is related to the electr
ST6560-T3 3axis mach3 cnc Stepper Motor Controller operation instruction. 1. ST6560-T3 3axis mach3 ... â ¡ãApplicationsï¼ . ..... Fig 9 eight-wire stepper motor connection. Notes:Motor A+ ... The panel of IFS-6560T3-N axis match with two and four-
Features. ⢠Access time 250/350/450ns (max.) ⢠Single +5V ±1 0% power supply. ⢠TT L compatible inputs and outputs. ⢠Three-state outputs. General Description.
3.22 Load Disk File into Buffer . ... 3.25 Program Buffer Contents to PLD . .... The EPROM programmer is easy to install and is good to work with an IBM.
all Teru driven and easy to list, The progra II's on the floppy disk directly control the hardware .... CN For the PRCM:LIic MEGA Jrugruit litting utilities. PLDSSSS.
