STEVAL-IHM012V1 STMicroelectronics, STEVAL-IHM012V1 Datasheet - Page 5

• Manufacturer Part Number: STEVAL-IHM012V1
• Description: EVAL BRD POWER MOSFET/8PIN MCU
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-IHM012V1

• Design Resources: STEVAL-IHM012V1 Gerber Files STEVAL-IHM012V1 Schematic STEVAL-IHM012V1 Bill of Materials
• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST7FLITEUS5
• Primary Attributes: Brush DC Motors
• Secondary Attributes: DC Chopper
• Product: Power Management Modules
• Kit Application Type: Power Management - Motor Control
• Application Sub Type: BLDC Motor
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ST7FLiteUS5
• Other names: 497-5861

UM0291
Note:
1.2
1.3
1.4
In this evaluation board we have chosen the ST7FULTRALITE which is a very small and
less expensive microcontroller available in DIP8, DFN8 and SO8 packages:
●
●
●
●
●
The microcontroller has still one I/O-ADC PIN free for other uses.
For example this free pin could be used to change (through a potentiometer) the value of the
threshold (Imax) in the high current protection. The user can directly change the max
handling Torque and the potentiometer emulates the mechanical clutch present in all
electrical drills.
Power MOSFET
With very low R
such as cordless tools.
We have chosen the STD50NH02L in D-Pack package because this device can be driven
directly by the ST7FULTRALITE. Thus we can avoid using the Power MOSFET driver and
can economize the size and costs of the demo board (see
Main features (see datasheet):
Power supply
To reduce board cost we have implemented the power supply with a Zener regulator circuit
(see
Freewheeling diode
For the freewheeling diode, the STPS5L25B has been chosen and is available in DPACK
packaging (see
available area on PCB for heat dissipation.
Extended -40°C to 125°C temperature range
Fast 10-bit ADC
8-bit timer with Watchdog, 12-bit ART, 6 I/Os
External and internal clock management
5 power-saving modes including Autowakeup from Halt
–
–
–
–
Figure
R
V
Id= 50 A
R
DSS
THJ-CASE
DSon
3).
= 24 V
DS(on)
= 0.012 Ω @ 5 V
Figure
= 2.5 °C/W (Thermal resistance Junction-case)
, STripFET™ Power MOSFETs are suitable for high power applications
3). We now have a more compact board in order to utilize the
Block diagram of a single switch Chopper
Figure
2).
5/18