- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379175 > DRV101 PWM SOLENOID/VALVE DRIVER PDF資料下載
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)： | 8/19頁 |
| 文件大小： | 298K |
| 代理商： | DRV101 |
8
DRV101
BASIC OPERATION
The DRV101 is a low-side, bipolar power switch employing
a pulse-width modulated (PWM) output for driving electro-
mechanical and thermal devices. Its design is optimized for
two types of applications; a two-state driver (open/close) for
loads such as solenoids and actuators, and a linear driver for
valves, positioners, heaters, and lamps. Its wide supply
range, adjustable delay to PWM mode, and adjustable duty
cycle make it suitable for a wide range of applications.
Figure 1 shows the basic circuit connections to operate the
DRV101. A 0.1
μ
F bypass capacitor is shown connected to
the power supply pin.
The Input (pin 1) is compatible with standard TTL levels.
Input voltages between +2.2V and +5.5V turn the device
output on, while pulling the pin low (0V to +1.2V), shuts the
DRV101 output off. Input current is typically 80
μ
A.
Delay Adjust (pin 2) and Duty Cycle Adjust (pin 3) allow
external adjustment of the PWM output signal. The Delay
Adjust pin can be left floating for minimum delay to PWM
mode (typically 15
μ
s) or a capacitor can be used to set the
delay time. Duty cycle of the PWM output can be controlled
FIGURE 1. Basic Circuit Connections and Timing Diagram.
by a resistor, analog voltage, or D/A converter. Figure 1b
provides an example timing diagram with the Delay Adjust
pin connected to 0.1
μ
F and duty cycle set for 25%. See the
“Delay Adjust” and “Duty Cycle Adjust” text for equations
and further explanation.
Ground (pin 4) is electrically connected to the package tab.
This pin must be connected to system ground for the
DRV101 to function. This serves as the load current path to
ground, as well as the DRV101 reference ground.
The load (solenoid, valve, etc.) is connected between the
supply (pin 5) and output (pin 6). For an inductive load, an
external diode across the output is required as shown in
Figure 1a. The diode serves to maintain the hold force during
PWM operation. For remotely located loads, the external
diode should be placed close to the DRV101 (Figure 1a). The
internal clamp diode between the output and ground should
not be used to carry load current.
The Flag (pin 7) provides fault status for under-current,
over-current, and thermal shutdown conditions. This pin is
active low with pin voltage typically +0.3V during a fault
condition. A small value capacitor may be needed between
Flag and ground for noisy applications.
R
PWM
C
D
Delay
Adjust
Input
(TTL-Compatible)
On
Off
Thermal Shutdown
Over/Under Current
Flag
Load
Duty Cycle Adjust
V
S
24kHz
Oscillator
PWM
2
3
1
7
5
6
4
Gnd
Out
(electrically
connected to
tab)
Delay
0.1
μ
F
(a)
(b)
t
P
t
ON
OUTPUT
V
S
0
INPUT
+2.2V to +5.5V
0V to +1.2V
Duty Cycle = t
ON
t
P
R
PWM
= 130k
t
ON
≈
10.4
μ
s
t
P
≈
41.6
μ
s (1/24kHz)
Basic Circuit Connections
Simplified Timing Diagram
C
D
= 0.1
μ
F (95ms constant dc output before PWM)
R
PWM
= 130k
(1)
NOTE: (1) External flyback diode required for inductive loads to conduct load current during the off cycle.
For remotely located loads, diode should be placed close to the DRV101.
Motorola MSRS1100T3 (1A, 100V), MBRS360T3 (3A, 60V)
C
D
= 0.1
μ
F
95ms
Initial dc Output
(set by value
of C
D
)
PWM Mode
(resistor or voltage
controlled)
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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。