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參數(shù)資料
| 型號(hào)： | TEA3718SDP |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | STEPPER MOTOR DRIVER |
| 中文描述： | 步進(jìn)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 288K |
| 代理商： | TEA3718SDP |
PIN FUNCTIONS
Name
OUT B
Function
Output Connection (with pin OUTA). 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 (t
off
= 0.69 R
T
C
T
).
Supply Voltage Input for Half Output Stage
Ground Connection. In SO-20L and Powerdip 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. See 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 Schmitt
trigger on this input provides good noise immunity and a delay circuit prevents output
stage short circuits during switching.
See INPUT 1
Input connected to the three comparators. The voltage across the sense resistor is
feedback to this input through the low pass filter R
C
C
C
. 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 R
T
C
T
, T
off
= 0.69
R
T
C
T
.
A voltage applied to this pin sets the reference voltage of the three comparators.
Reference voltage with the value of R
S
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 T
j
reaches T1
°
C the alarm output becomes low (TEA3718SP)
When T
j
reaches T2
°
C the prealarm output becomes low (T2<T1) (TEA3718SFP)
PULSE TIME
V
S
(B)
GND
V
SS
IN1
PHASE
IN0
COMPARATOR INPUT
REFERENCE
V
S
(A)
OUT A
SENSE RESISTOR
ALARM
PRE-ALARM
TEA3718-TEA3718S
3/16
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TEA3718SFP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Stepper Motor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TEA3718SFPTR | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Stepper Motor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TEA3718SP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Stepper Motor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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| TEA3R3M1CTR-0512P | 功能描述:鋁質(zhì)電解電容器 - 帶引線 16V 3.3uF 20% RoHS:否 制造商:Kemet 引線類型: 電容:220 uF 容差:20 % 電壓額定值:25 V 工作溫度范圍: 端接類型:Radial 外殼直徑:8 mm 外殼長度:11 mm 引線間隔:5 mm 產(chǎn)品:General Purpose Electrolytic Capacitors 封裝:Bulk |
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