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Details, datasheet, quote on part number:KMI18/4
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Datasheet text preview:
DISCRETE SEMICONDUCTORS
DATA SHEET
handbook, halfpage
M3D383
KMI18/4 Integrated rotational speed sensor
Objective specification 2000 Sep 05
Philips Semiconductors
Objective specification
Integrated rotational speed sensor
FEATURES · Open collector output · For active target wheel application · Wide air gap · Zero speed capability · Wide temperature range · Insensitive to vibration. DESCRIPTION The KMI18/4 sensor detects rotational speed of passive targets wheels with ferrous reference marks. It consists of a magnetoresistive sensor element, an integrated circuit for signal conditioning and a ferrite magnet. The frequency of the digital voltage output signal is proportional to the rotational speed of the target wheel (see Fig.3). An open collector output gives high flexibility in the design of the subsequent signal conditioning. CAUTION Do not press two or more products together against their magnetic forces. Do not expose products to strong magnetic fields of more than 30 kA/m. PINNING PIN 1 2 3 SYMBOL VCC OUT GND
KMI18/4
DESCRIPTION DC supply open collector output ground
handbook, halfpage
B1 B2 B3 B4
1
2
3
MBL223
Fig.1 Simplified outline (SOT477C).
QUICK REFERENCE DATA SYMBOL VCC ICC dmax dmin Tamb Note 1. Maximum power consumption according to power derating curve, see Fig.5. PARAMETER DC supply voltage DC supply current maximum sensing distance minimum sensing distance ambient operating temperature CONDITIONS Tamb = -40 to +150 °C VCC = 5 V gear wheel; see Fig.4 gear wheel; see Fig.4 VCC = 5 V; note 1 MIN. 4.5 6 2.2 - -40 TYP. 5 7 2.7 - - MAX. 16.5 10 - 0.3 +150 UNIT V mA mm mm °C
2000 Sep 05
2
Philips Semiconductors
Objective specification
Integrated rotational speed sensor
KMI18/4
LIMITING VALUES Limiting values in accordance with the Absolute Maximum Rating System (IEC 60134) for Tamb = -40 to +150 °C; see Fig.6. SYMBOL VCC VOUT IOUT(max) IOUT(high) Ptot Tamb Tstg Tsld Notes 1. LOW: open collector output transistor open (VOUT 4 V). PARAMETER DC supply voltage output voltage maximum output current output leakage current total power dissipation ambient operating temperature storage temperature soldering temperature t 10 s CONDITIONS not protected against incorrect polarity not protected against incorrect polarity low state; note 1 high state; note 2; see Fig.7 high state; note 2; see Fig.8 VCC = 16.5 V; IOUT = 20 mA VCC = 5 V MIN. -0.5 -0.5 - - - - -40 -40 - MAX. +16.5 +24 20 100 100 300 +150 +150 260 UNIT V V mA µA µA mW °C °C °C
2000 Sep 05
3
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