KMZ10C,112 NXP Semiconductors, KMZ10C,112 Datasheet - Page 24

• Manufacturer Part Number: KMZ10C,112
• Description: IC MAGNETIC FIELD SENSOR SOT195
• Manufacturer: NXP Semiconductors
• Type: Special Purposer

Specifications of KMZ10C,112

• Sensing Range: 2mV/V
• Voltage - Supply: 5 V ~ 10 V
• Output Type: Analog
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-195
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (min): 5 V
• Supply Voltage (max): 10 V
• Operating Temperature (min): -40C
• Operating Supply Voltage (typ): 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Current - Output (max): -
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 933698480112; KMZ10C T/R; KMZ10C T/R

Philips Semiconductors
The ‘flipper’ circuit (Block 1) generates the flipping current,
with a flipping frequency determined by R16 and C3,
about 1 kHz in this case. As previously stated, the
frequency is not critical and can be selected to minimize
the need for post filtering and/or to provide the required
response time.
The flipping frequency drives the synchronous rectifier as
well as the flipping coil. As the signal passes from high to
low, C4/R17 together produce a pulse that switches TR2
on. This charges C6 and a short positive pulse is passed
to the flipping coil. For a low-to-high signal transition,
1998 Jun 12
handbook, full pagewidth
Magnetic field sensors
V CC
R1
Ua
Ua
KMZ51
U ref
R14
C3
GENERATOR
FLIPPING
IC6A
block 3
R2
GND
IC1B
R15
R16
COMPENSATION
R3
AMPLIFIER
IC2A
C4
C5
OFFSET
SIGNAL
Fig.26 Application circuit using the KMZ51 sensor.
block 2
block 1
C1
IC2B
R4
flipping pulse
R17
R18
R5
R6
TR2
TR1
GND
C6
U ref
R7
R8
FLIP
IC6
CONTROLLED
V CC
AMPLIFIER
block 4
S1
24
IC2C
R9
C5/R18 forces TR1 to conduct, making C6 discharge and
providing a negative pulse through to coil. An oscillograph
of the current through the flipping coil is shown in Fig.27c,
with a duration of about 10 s and maximum current
amplitude of around 0.7 A. The other diagrams show the
responses of offset compensation (Fig.27b), and
measuring magnetic pulses (Fig.27a).
R19
R20
U ref
GENERATOR
IC1A
R10
U ref
Note: the values of R7, R8 and R9
C7
FILTER
block 5
R11
should be identical
U ref
IC2D
C2
C8
IC2
COMPENSATION
R12
IC4
block 6
COIL
COMP
IC2B
IC6B
R13
OP-AMP
SUPPLY
MBH620
General
V CC
V out
GND