KMA199,115 NXP Semiconductors, KMA199,115 Datasheet - Page 6

• Manufacturer Part Number: KMA199,115
• Description: IC SENSOR PROG ANGLE SOT880
• Manufacturer: NXP Semiconductors

Specifications of KMA199,115

• Operational Type: Programmable Angle Sensor
• Operating Supply Voltage: 5 V
• Supply Current: 5 mA to 10 mA
• Package / Case: SOT-880
• Mounting Style: Through Hole
• Supply Voltage (min): 4.5 V
• Supply Voltage (max): 5.5 V
• Maximum Output Current: 20 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
7. Diagnostic features
KMA199_1
Product data sheet
7.1 EEPROM CRC and EDC supervision
7.2 Magnet-loss detection
7.3 Power-loss detection
The KMA199 provides four diagnostic features:
The KMA199 system includes a supervision of the programmed data. At power-on, a CRC
of the EEPROM is performed. Furthermore the EEPROM is protected against bit errors.
Every 16-bit data word is saved internally as a 22-bit word for this purpose. The protection
logic corrects any single-bit error in a data word, while the sensor continues in normal
operation mode. Multiple bit errors per word will be detected and switches the device into
diagnostic mode.
If the applied magnetic field strength is not sufficient, the KMA199 raises a diagnostic
condition. In order to enter the diagnostic mode, due to EEPROM CRC or magnet-loss
detection, the device can be programmed into active diagnostic mode, where the output is
driven below 4 %V
The power-loss detection circuits enable the detection of an interrupted supply or ground
line of the KMA199. In the case of a power-loss condition, two internal switches in sensor
are closed, connecting the pin of the analog output with the supply voltage and the ground
pins.
Fig 3.
α
Characteristic of the analog output
max
= α
All information provided in this document is subject to legal disclaimers.
ref
+ α
DD
rng
or above 96 %V
(%V
Rev. 01 — 26 April 2010
V
V
(CL)u
(CL)I
DD
V
O
)
0
ref
DD
rng
.
max
sw(CL)
180
ref
+ 180
Programmable angle sensor
001aag811
(deg)
© NXP B.V. 2010. All rights reserved.
KMA199
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