MCP2036-I/ML Microchip Technology, MCP2036-I/ML Datasheet - Page 7

• Manufacturer Part Number: MCP2036-I/ML
• Description: KEYLESS ENTRY AFE, IND SENSOR, 16QFN
• Manufacturer: Microchip Technology

Specifications of MCP2036-I/ML

• Svhc: No SVHC (15-Dec-2010)
• Package / Case: QFN
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +85°C
• Supply Voltage Max: 5.5V
• Supply Voltage Min: 2.7V
• Termination Type: SMD
• Supply Voltage Range: 2.7V To 5.5V
• Clock Frequency Max: 2MHz
• Slew Rate: 0.6V/µs
• Turn On Time: 4µs
• Sensor Case Style: QFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.0
The MCP2036 is an Analog Front End device that uses
the electromagnetic interaction between a conductive
target and a sensing coil to detect the pressure applied
by the user on the surface of a touch panel. The device
incorporates all analog blocks for a simple inductor
impedance measurement circuit.
FIGURE 3-1:
© 2009 Microchip Technology Inc.
APPLICATIONS
Key Coils
Using Analog-Multiplexer for Key Selection (Example)
Key Coils
LREF
CD4052
0
1
2
3
1
0
2
3
LREF
For an inductive touch system, two methods are used
for switching the driver and measurement circuitry
between the different sensor coils: analog multiplexers
and GPIO grounding (see
The MCP2036 is designed to work with both
configurations:
10nF
10nF
10Ω
10nF
10nF
10Ω
4K7
4K7
4K7
4K7
PIC
LREF
REFSEL
I/O
I/O
I/O
I/O
I/O
PIC
DRVOUT
LBTN
®
MCP2036
LBTN
REFSEL
I/O
I/O
DRVOUT
LREF
I/O
Microcontroller
MCP2036
®
Microcontroller
Figure 3-1
MCP2036
DS22186A-page 7
and
Figure
3-2).