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参数资料
| 型号： | HMC1002 |
| 厂商： | Honeywell Microelectronics & Precision Sensors |
| 文件页数： | 9/15页 |
| 文件大小： | 1409K |
| 描述： | SENSOR LINEAR MAGN 2AXIS 20-SOIC |
| 标准包装： | 1 |
| 传感范围： | ±2g |
| 类型： | 线性 |
| 电源电压： | 5 V ~ 12 V |
| 输出类型： | 差分电压 |
| 特点： | 罗盘 - 双轴 |
| 工作温度： | -55°C ~ 150°C |
| 封装/外壳： | 20-SOIC |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
| 其它名称： | 342-1002-5 |
HMC1001/1002/1021/1022
www.honeywell.com
9
The next circuit implementation is the classic set/reset design in which a push-pull output stage (totem pole stage) drives
one end of the HMC1001 set/reset strap, with the other end grounded. Figure 3 shows this circuit.
Figure 3 Totem Pole Set/Reset Circuit for HMC1001
The totem pole moniker comes from the stacked semiconductors between the positive supply voltage (VDD) and the
negative connection (Ground). In the above example circuit, the semiconductors depicted are two complementary power
MOSFETs, with the P-channel device on top and the N-channel device on the bottom. The International Rectifier IRF7105
part is chosen in this circuit as it contains both P-channel and N-channel MOSFET die in a very small package, and has
the electrical characteristics needed for this circuit. Other manufacturers can be used as well with the requirements that
they can be fully turned on/off with a 5-volt logic stimulus, handle the peak set/reset strap load currents, and present an
on resistance at those peak currents that is fairly small in comparison to the connected strap load resistance.
HIGHER VOLTAGE TOTEM POLE CIRCUITS
While the previous example uses the convenience o f standard 5 -volt logic drive and modest supplies, many sensor
designs require higher applied voltages to the set/reset straps to achieve greater currents or because the straps are
series connected to assure even current distribution across all the straps pulsed. By creating series chains of straps,
variances in strap resistance are less likely to fall out of the minimum or maximum range for peak pulse currents. If the
straps are parallel connected, wide set/reset strap ohmic tolerances may be prone to current hogging and the straps will
provide dissimilar magnetic fields at each sensor, potentially creating non-uniform accuracies at each sensor axis.
The circuit in Figure 3 relies on MOSFETs that could predictably be turned off and on completely using logic level inputs.
At higher voltages, the P-channel device needs its gate drive voltage to approach the source voltage, which is higher than
usual logic levels. To perform this level shifting from logic levels to higher pulse source voltage supply levels, a BJT level
shifter sub-circuit is employed to perform this task. Figure 4 shows this higher voltage operating circuit.
From Figure 4, Rsr1, Rsr2, and Rsr3 are three strap resistances that are modeled from the HMC1001 or HMC1002
products. Three of these strap resistances are chosen since many users desire 3-axis magnetic field sensing that comes
from a pairing of a HMC1001 and a HMC1002. Also this combination of three series straps is also used on the HMC2003
hybrid sensor module and in the HMR2300 Smart Digital Magnetometer.
X1
IRF7105P
X2
IRF7105N
C1
10U
R1
200
C2
0.47U
Rsr
1.5
VDD
C3
0.47U
R2
22K
C4
0.1U
Vsource
Vsr
Rsource
10
8 Volts
X1
IRF7105P
X2
IRF7105N
C1
10U
R1
200
C2
0.47U
Rsr
1.5
VDD
C3
0.47U
R2
22K
C4
0.1U
Vsource
Vsr
Rsource
10
8 Volts
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| HB-48-2 | CORD PATCH BANANA PLUG 48" RED |
| HB-48-0 | CORD PATCH BANANA PLUG 48" BLACK |
| HB-24-0 | CORD PATCH BANANA PLUG 24" BLACK |
| HB-12-2 | CORD PATCH BANANA PLUG 12" RED |
| DG-ANT-20CB-AG | ANTENNA 2/4/5GHZ CB 2DB SNGL PAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HMC1002RC | 制造商:HONEYWELL 功能描述:New |
| HMC1002-RC | 制造商:Honeywell Microelectronics And Precision Sensors 功能描述:MAGNETIC SENSOR; Magnetic Field Min:-2G; Magnetic Field Max:2G; Leaded Process Compatible:Yes; Output Type:Differential; Resolution:40G; Sensitivity Range:3mV/V/G; Sensor Output:Voltage; Sensor Terminals:SMD ;RoHS Compliant: Yes |
| HMC1002-RC | 制造商:Honeywell Sensing and Control 功能描述:MAGNETIC SENSOR OUTPUT TYPE:DIFFERENTIAL |
| HMC1002-TR | 功能描述:SENSOR LINEAR MAGN 2AXIS 20-SOIC RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| HMC1010LP4E | 制造商:Hittite Microwave Corp 功能描述:RF RMS PWR DETECTOR 3.9GHZ 24SMT |
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