TCA 3727 Infineon Technologies, TCA 3727 Datasheet

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TCA 3727

Manufacturer Part Number
TCA 3727
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of TCA 3727

Packages
P-DIP-20
Ipeak
2 x 1.0 A
Inhibit
Y
Iq (typ)
20.0 µA
Mounting
THT
Technology
Bipolar
2-Phase Stepper-Motor Driver
Bipolar IC
Features
Description
TCA 3727 is a bipolar, monolithic IC for driving bipolar
stepper motors, DC motors and other inductive loads that
operate on constant current. The control logic and power
output stages for two bipolar windings are integrated on
a single chip which permits switched current control of
motors with 0.75 A per phase at operating voltages up to
50 V.
The direction and value of current are programmed for each phase via separate control
inputs. A common oscillator generates the timing for the current control and turn-on with
phase offset of the two output stages. The two output stages in a full-bridge configuration
have integrated, fast free-wheeling diodes and are free of crossover current. The logic is
supplied either separately with 5 V or taken from the motor supply voltage by way of a
series resistor and an integrated Z-diode. The device can be driven directly by a
microprocessor with the possibility of all modes from full step through half step to mini
step.
Type
TCA 3727
TCA 3727 G
Data Sheet
2
Integrated driver, control logic and current control
(chopper)
Fast free-wheeling diodes
Max. supply voltage 52 V
Outputs free of crossover current
Offset-phase turn-ON of output stages
Z-diode for logic supply
Low standby-current drain
Full, half, quarter, mini step
0.75 amp. / 50 V outputs
Ordering Code
Q67000-A8302
Q67000-A8335
1
Package
P-DIP-20-6
P-DSO-24-3
P-DSO-24-1, -3
Rev. 2.0, 2004-10-01
TCA 3727

Related parts for TCA 3727

TCA 3727 Summary of contents

Page 1

... Low standby-current drain • Full, half, quarter, mini step Description TCA 3727 is a bipolar, monolithic IC for driving bipolar stepper motors, DC motors and other inductive loads that operate on constant current. The control logic and power output stages for two bipolar windings are integrated on a single chip which permits switched current control of motors with 0 ...

Page 2

... Figure 1 Pin Configuration TCA 3727 (top view) Data Sheet Phase OSC 5 16 GND 6 15 GND 7 14 Q11 Q12 IEP00696 2 TCA 3727 20 21 Phase 2 Inhibit GND GND Q21 Q22 Rev. 2.0, 2004-10-01 ...

Page 3

... Figure 2 Pin Configuration TCA 3727 G (top view) Table 1 Pin Definitions and Functions Pin No. Function 1, 2, 19, 20 Digital control inputs IX0, IX1 for the magnitude of the current of the 1) (1, 2, 23, 24) particular phase. See 3 Input Phase 1; controls the current through phase winding 1. On H-potential the phase current flows from Q11 to Q12, on L-potential in the reverse direction ...

Page 4

... This reduces the current consumption substantially (22) Input phase 2; controls the current flow through phase winding 2. On H-potential the phase current flows from Q21 to Q22 potential in the reverse direction. 1) TCA 3727 G only Table 2 Digital Control Inputs IX0, IX1 I R typical ...

Page 5

... OSC 10 1 Function 11 2 Logic Phase 1 Phase 1 3 Inhibit 17 Inhibit 20 20 Function 21 19 Logic Phase 2 Phase 2 18 Figure 3 Block Diagram TCA 3727 Data Sheet + 15, 16 GND 5 TCA 3727 Q11 7 Phase 1 Q12 Q21 14 Phase 2 Q22 11 13 ...

Page 6

... Oscillator 10 1 Functional 11 2 Logic Phase 1 Phase 1 3 Inhibit 21 Inhibit 20 24 Functional 21 23 Logic Phase 2 Phase 2 22 Figure 4 Block Diagram TCA 3727 G Data Sheet + D11 D12 T11 D13 D14 T13 D21 D22 T21 D23 D24 T23 5-8, 17-19 GND 6 TCA 3727 ...

Page 7

... GND 0.3 V IXX -0.3 + 0 OSC T – 125 j – 150 T -50 125 stg 7 TCA 3727 Unit Remarks V – V Z-diode mA – A – A – IXX; Phase 1, 2; Inhibit – C – C max. 10,000 h C – Rev. 2.0, 2004-10-01 ...

Page 8

... R – – – – – TCA 3727 Remarks V – V without series resistor C measured on pin diss mA – V IXX; Phase 1, 2; Inhibit K/W P-DIP-20-6 K/W P-DIP-20-6 K/W measured on pin 5 P-DIP-20-6 K/W P-DSO-24-3 ...

Page 9

... V 1.4 – -10 – -100 – – – Inh ( 1.7 2.3 Inh ( 0.3 0.7 Inhhy 9 TCA 3727 Unit Test Condition Max inh inh IXX = L Q1 inh inh IXX = L Q1/2 – A – – ...

Page 10

... Fl V – – 0.9 satuC V – 0.3 satuD V – 1.1 satuC V – 0.5 satuD I – – – – 1 – TCA 3727 Unit Test Condition Max -0. 300 ...

Page 11

... Operating Condition • L IED01657 V • Inh C • OSC R • sense • Load: f • phase • mode: fullstep TCA 3727 versus IED01656 40V - 100 = ...

Page 12

... Output Saturation Voltages I versus Output Current Typical Power Dissipation I Output Current (non stepping) Q Data Sheet V Forward Current sat Diodes versus Forward Voltages versus Permissible Power Dissipation tot versus Case Temperature P tot 12 TCA 3727 I of Free-Wheeling F IED01167 1 0 0.6 0.4 0 0.5 1 ...

Page 13

... Oscillator Frequency OSC T Junction Temperature 30 V kHz OSC - 100 125 C 150 Data Sheet Input Current of Inhibit versus Junction Temperature IED01661 IXX versus j IED01663 = 40V 2.2nF OSZ TCA 3727 T j Rev. 2.0, 2004-10-01 ...

Page 14

... TCA 3727 Phase 2 OSC GND OSC OSC 2 Sense 14 220 nF 100 Satu Q11 - Q12 - Q21 Satl Q22 Sense GND IES00706 Rev. 2.0, 2004-10-01 TCA 3727 ...

Page 15

... Application Circuit Data Sheet 220 Phase 1 17 Inhibit TCA 3727 Phase 2 OSC GND 2 TCA 3727 +40 V 220 nF 100 F 7 Q11 10 Q12 14 Q21 M 11 Q22 5, 6 15, 16 IES00707 Rev. 2.0, 2004-10-01 ...

Page 16

... Phase acc i set Q1 i set i acc i acc i set Q2 i set i acc H Phase Figure 7 Full-Step Operation Data Sheet Accelerate Mode 16 TCA 3727 Normal Mode IED01666 Rev. 2.0, 2004-10-01 ...

Page 17

... Phase acc i set set - i acc i acc i set set - i acc H Phase Figure 8 Half-Step Operation Data Sheet Accelerate Mode 17 TCA 3727 Normal Mode IED01667 Rev. 2.0, 2004-10-01 ...

Page 18

... Figure 9 Quarter-Step Operation Data Sheet 18 TCA 3727 Rev. 2.0, 2004-10-01 ...

Page 19

... Phase acc i set i hold Q1 i hold i set i acc i acc i set i hold Q2 i hold i set i acc H Phase Figure 10 Mini-Step Operation Data Sheet 19 TCA 3727 IED01665 Rev. 2.0, 2004-10-01 ...

Page 20

... V Q11 + Q22 + Q21 + V S Operating conditions phase phase phase Inhibit = Figure 11 Current Control Data Sheet satu D satu C 20 TCA 3727 IED01177 Rev. 2.0, 2004-10-01 ...

Page 21

... L phase phase Figure 12 Phase Reversal and Inhibit Data Sheet Phase Changeover satl Slow Current Decay Fast Current Decay = H 21 TCA 3727 Oscillator High Imped satu D satu C High Impe- dance Decay by Slow Current Decay Rev ...

Page 22

... Data Sheet P is made up of tot (transistor saturation voltage and diode forward voltages), (quiescent current times supply voltage) and (turn-ON / turn-OFF operations satuC satuD I ⎫ ⎬ ---- - + + DOFF OFF 2 4 ⎭ 22 TCA 3727 Rev. 2.0, 2004-10-01 (1) (2) ...

Page 23

... Turn-ON Voltage and Current at Chopper Transistor Figure 14 Data Sheet + V S Tx1 Dx1 Dx2 L Tx3 Dx3 Dx4 V sense R sense satl TCA 3727 Tx2 Tx4 IES01179 Turn-OFF + OFF OFF Rev. 2.0, 2004-10-01 t IET01210 ...

Page 24

... Power Supply The TCA 3727 will work with supply voltages ranging from pin circuit operates with chopper regulation of the current, interference generation problems can arise in some applications. Therefore the power supply should be decoupled by a ...

Page 25

... To protect the circuit against thermal destruction, thermal shut down has been implemented. To provide a warning in critical applications, the current of the sensing element is wired to input Inhibit. Before thermal shut down occurs Inhibit will start to pull down by some hundred microamperes. This current can be sensed to build a temperature prealarm. Data Sheet 25 TCA 3727 Rev. 2.0, 2004-10-01 ...

Page 26

... Package Outlines Figure 15 P-DIP-20-6 (Plastic Dual In-line Package) You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Data Sheet 26 TCA 3727 GPD05587 Dimensions in mm Rev. 2.0, 2004-10-01 ...

Page 27

... Lead width can be 0.61 max. in dambar area Figure 16 P-DSO-24-3 (Plastic Dual Small Outline Package) You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Data Sheet 0.1 0.2 24x 15.6 -0.4 27 TCA 3727 0.35 x 45˚ 1) 7.6 -0.2 +0.8 0.4 10.3 ±0.3 Dimensions in mm Rev. 2.0, 2004-10-01 GPS05144 ...

Page 28

... TCA 3727 Revision History: Previous Version: Page Subjects (major changes since last revision) 2004-10-01 1.0, 1998-12-16 Rev. 2.0 Template: ap_a5_vr_tmplt. 2004-09-15 ...

Page 29

... Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...

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