HMC1023PCB HONEYWELL [Honeywell Solid State Electronics Center], HMC1023PCB Datasheet - Page 7

• Manufacturer Part Number: HMC1023PCB
• Description: 3-AXIS MAGNETIC SENSOR
• Manufacturer: HONEYWELL [Honeywell Solid State Electronics Center]

HMC1023
Duty Cycling for Lower Energy Consumption
For battery powered and other applications needing limited energy consumption, the sensor bridge and support
electronics can be switched “off” between magnetic field measurements. The HMC1023 sensors are very low
capacitance (Bandwidth > 5MHz) sensor bridges and can stabilize quickly, typically before the support electronics
can. Other energy saving ideas would be to minimize the quantity of set/reset pulses which saves energy over the
battery life. Figure 3 shows a simple supply switching circuit that can be microprocessor controlled to duty cycle
(toggle) the electronics in moderate current (<25mA) applications.
ORDERING INFORMATION
The application circuits herein constitute typical usage and interface of Honeywell product. Honeywell does not
warrant or assume liability for customer-designed circuits derived from this description or depiction.
Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume
any liability arising out of the application or use of any product or circuit described herein; neither does it convey any
license under its patent rights nor the rights of others.
This product may be covered by one or more of the following U.S. Patents: 4569742 4681812 4847584 4857418
4945397 5019461 5247278 5820924 5952825 and 6529114.
900252 10-03 Rev. B
Solid State Electronics Center • www.magneticsensors.com • [phone] • Page 7
Duty Cycling
To Sensor Circuits
To Sensor Circuits
Figure 3
HMC1023
HMC1023PCB
* Used when Vcc = 5.0 volts, jumper
* Used when Vcc = 5.0 volts, jumper
Part Number
when using Vcc = 3.3 volts or less.
when using Vcc = 3.3 volts or less.
Three Axis Magnetic Sensor
Three Axis Magnetic Sensor – 16-Pin DIP Demo
MMBT2907ALT1
MMBT2907ALT1
*MMBD7001LT1
*MMBD7001LT1
Package Style
0.01 f
0.01 f
10k
10k
Vcc
Vcc
Off
Off
+
+
-
-
10 f
10 f
On
On
Vcc
Vcc
toggle
toggle
Gnd
Gnd
SENSOR PRODUCTS
C
C