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参数资料
| 型号： | TEA3718DP |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.5 A, PDIP16 |
| 封装： | POWER, DIP-16 |
| 文件页数： | 15/21页 |
| 文件大小： | 3436K |
| 代理商： | TEA3718DP |
PIN FUNCTIONS
Name
Function
OUT B
Output Connection (with pin OUTA). The output stage is a "H" bridge formed by four
transistors and four diodes suitable for switching applications.
PULSE TIME
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 RTCT).
VS(B)
Supply Voltage Input for Half Output Stage
GND
Ground Connection. In SO-20L and Powerdip these pins also conduct heat from die
to printed circuit copper.
VSS
Supply Voltage Input for Logic Circuitry
IN1
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.
PHASE
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.
IN0
See INPUT 1
COMPARATOR INPUT
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 RTCT, Toff = 0.69
RTCT.
REFERENCE
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.
VS(A)
Supply voltage input for half output stage
OUT A
See pin OUT B
SENSE RESISTOR
Connection to lower emitters of output stage for insertion of current sense resistor
ALARM
When Tj reaches T1
°C the alarm output becomes low (TEA3718SP)
PRE-ALARM
When Tj reaches T2
°C the prealarm output becomes low (T2<T1) (TEA3718SFP)
TEA3718-TEA3718S
3/16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA3718S | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:STEPPER MOTOR DRIVER |
| TEA3718SDP | 功能描述:马达/运动/点火控制器和驱动器 Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TEA3718SFP | 功能描述:马达/运动/点火控制器和驱动器 Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TEA3718SFPTR | 功能描述:马达/运动/点火控制器和驱动器 Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TEA3718SP | 功能描述:马达/运动/点火控制器和驱动器 Stepper Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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