Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

E-TEA3718DP View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
E-TEA3718DP Stepper motor driver ST-Microelectronics
STMicroelectronics ST-Microelectronics
E-TEA3718DP Datasheet PDF : 26 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Device diagrams
Table 2. Pin functions
Name
Function
OUTB
PULSE TIME
VS(B)
GND
VSS
IN1
PHASE
IN0
COMPARATOR INPUT
REFERENCE
VS(A)
OUTA
SENSE RESISTOR
ALARM
PRE-ALARM
Output connection (with pin OUT A). The output stage is a "H" bridge formed by four
transistors and four diodes suitable for switching applications.
A parallel RC network connected to this pin sets the OFF time of the lower power
transistors. The pulse generator is a monostable triggered by the rising edge of the
output of the comparators (toff = 0.69 RT CT).
Supply voltage input for half output stage
Ground connection. In SO20 and power DIP these pins also conduct heat from die to
printed circuit copper.
Supply voltage input for logic circuitry
This pin and pin IN0 are logic inputs which select the outputs of three comparators to set
the current level. Current also depends on the sensing resistor and reference voltage.
SeeTable 8: Truth table.
This TTL-compatible logic input sets the direction of current flow through the load. A
high level causes current to flow from OUT A (source) to OUT B (sink). A Schmidt trigger
on this input provides good noise immunity and a delay circuit prevents output stage
short circuits during switching.
See IN1
Input connected to the three comparators. The voltage across the sense resistor is
feedback to this input through the low pass filter RCCC. The lower power transistor 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 CT,
Toff = 0.69 RT CT.
A voltage applied to this pin sets the reference voltage of the three comparators.
Reference voltage with the value of RS and the two inputs IN0 and IN1 determines the
output current.
Supply voltage input for half output stage
See pin OUT B
Connection to lower emitters of output stage for insertion of current sense resistor
When Tj reaches T1 oC the alarm output becomes low (TEA3718SP)
When Tj reaches T2 oC the pre-alarm output becomes low (T2<T1) (TEA3718SFP)
Table 3. Device comparison table
Device
Current
Package
Alarm
Pre-alarm
TEA3718SDP
TEA3718SFP
TEA3718SP
TEA3718DP
1.5 A
1.5 A
1.5 A
1.5 A
Power DIP 12+2+2
SO20
Multiwatt 15
Power DIP 12+2+2
Connected
Not connected
Not connected
Connected
6/26
Direct download click here

 

Share Link : 
All Rights Reserved© datasheetq.com 2015 - 2019  ] [ Privacy Policy ] [ Request Datasheet  ] [ Contact Us ]