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參數(shù)資料
| 型號： | DRV101 |
| 英文描述： | PWM SOLENOID/VALVE DRIVER |
| 中文描述： | 脈寬調(diào)制電磁/閥驅(qū)動 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 298K |
| 代理商： | DRV101 |
4
DRV101
PIN #
NAME
DESCRIPTION
Pin 1
Input
The input is compatible with standard TTL levels. The device output becomes enabled when the input voltage is driven above
the typical switching threshold, 1.7V. Below this level, the output is disabled. With no connection to the pin, the input level rises
to 3.4V. Input current is 20
μ
A when driven high and 80
μ
A with the input low. The input may be momentarily driven to the power
supply (V
S
) without damage.
Pin 2
Delay Adjust
This pin sets the duration of the initial 100% duty cycle before the output goes into PWM mode. Leaving this pin floating results
in a delay of approximately 15
μ
s, which is internally limited by parasitic capacitance. Minimum delay may be reduced to less
than 3
μ
s by tying the pin to 5V. This pin connects internally to a 3
μ
A current source from V
and to a 3V threshold comparator.
When the pin voltage is below 3V, the output device is 100% on. The PWM oscillator is not synchronized to the Input (pin 1),
so the first pulse may be extended by any portion of the programmed duty cycle.
Pin 3
Duty Cycle Adjust
(PWM)
Internally, this pin connects to the input of a comparator and a 19k
resistor to ground. It is driven by a 200
μ
A current source
from V
. The voltage at this node linearly sets the duty cycle. Duty cycle can be programmed with a resistor, analog voltage,
or output of a D/A converter. The active voltage range is from 0.75V to 3.7V to facilitate the use of single-supply control
electronics. At 0.75V (or R
= 3.5k
), duty cycle is near 90%. Swing to ground should be limited to no lower than 0.1V. PWM
frequency is a constant 24kHz.
Pin 4
Ground
This pin is electrically connected to the package tab. It must be connected to system ground for the DRV101 to function. It
carries the 3.5mA quiescent current plus the load current when the device is on.
Pin 5
V
S
This is the power supply pin. Operating range is +9V to +60V.
Pin 6
Out
The output is the collector of a power npn with the emitter connected to ground. Low power dissipation in the DRV101 is attained
by the low saturation voltage and the fast switching transitions. Fall time is less than 75ns, rise time depends on load
impedance. Base drive to the power device is limited with light loads to control turn-off delay. The response of this circuit causes
the brief dip in saturation voltage after turn on. A flyback diode is needed with inductive loads to conduct the load current during
the off cycle. The external diode should be selected for low forward voltage. The internal clamp diode provides protection but
shouuld not be used to conduct load currents greater than 0.5A.
Pin 7
Flag
Normally high (active low), the Flag signals either an over-temperature, over-current, or under-current fault. The over/under-
current flags are true only when the output is on (constant dc output or the “on” portion of PWM mode). A thermal fault (thermal
shutdown) occurs when the die surface reaches approximately 165
°
C and latches until the die cools to 150
°
C. Its output
requires a pull-up resistor. It can typically sink two milliamps, sufficient to drive a low-current LED.
PIN DESCRIPTIONS
LOGIC BLOCK DIAGRAM
C
D
R
PWM
Input
On
Off
Over/Under Current
Flag
Load
V
S
(+9V to +60V)
Thermal
Shutdown
PWM
2
3
1
7
5
6
4
Gnd
Out
Delay
Schottky Power
Rectifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DRV101F | PWM SOLENOID/VALVE DRIVER |
| DRV101T | PWM SOLENOID/VALVE DRIVER |
| DRV102 | PWM SOLENOID/VALVE DRIVER |
| DRV102F | PWM SOLENOID/VALVE DRIVER |
| DRV102T | PWM SOLENOID/VALVE DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DRV101F | 制造商:BB 制造商全稱:BB 功能描述:PWM SOLENOID/VALVE DRIVER |
| DRV101F/500 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 PWM Solenoid/ Valve Driver 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 |
| DRV101FKTWT | 功能描述:馬達/運動/點火控制器和驅(qū)動器 PWM Solenoid/ Valve Driver 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 |
| DRV101FKTWT | 制造商:Texas Instruments 功能描述:DRIVERS 制造商:Texas Instruments 功能描述:IC, SOLENOID/VALVE DRVR 1CH 2.3A D2PAK-7 |
| DRV101FKTWTG3 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 PWN SOLENOID/VALVE DRIVER 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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