MLX16303 Datasheet, PDF (7/20 Pages) Melexis Microelectronic Systems – Bi-directional Remote Sensor Unit Interface

MLX16303
Bi-directional Remote Sensor Unit Interface
Itrip: specified value is for Vdd=5V (treshold is relative to Vdd)
Current threshold for the rising edge (1)
Hysteresis on current threshold
Ithreshold
Rtrip=56 Ithres-
KOhms hold
14
1
OUT0 and OUT1
Voltage drop between Vs and Out
Vout0_sat
(Ioutx ≤ 45 mA for 6.0 V< VS< 7.7V,
Ioutx ≤ 35 mA for 4.9 V < VS < 6.0 V)
Vout1_sat
Switch on Time via SPI until 90% of Voutx is reached tout0switchon,
3
(with an output capacitance 120nF, Switch ON time tout1switchon
start after the end of the SPI command)
Switch off Time via SPI until 10% of Voutx is reached tout0switchoff,
30
(with an output capacitance 120nF)
tout1switchoff
Short Circuit to GND diagnosis threshold:
Rout0srtgnd,
280
Resistance from OUTx to GND
Rout1srtgnd
Debounce time
tout0srtgndq,
500
tout1srtgndq
Faults are latched. No debounce time for the release. tout0srtgnddq,
0
tout1srtgnddq
Short Circuit to battery diagnosis threshold:
Rout0srtbat,
25
Resistance from OUTx to battery
Rout1rtbat
OUTx: Voltage limit
Vout0>>,
Vs
Vout1>>
Debounce time
tout0srtbatq,
500
tout1srtbatq
Short Circuit to according RETURNx diagnosis Rout0srtret0,
280
threshold: Resistance from OUTx to according
RETURNx
Rout1srtret1
Debounce time
tout0srtret0q,
500
tout1srtret1q
Open loop ( IOUTx ) low current limit ( with Rtrip = Iout0<<,
0.5
56K) ( remark: nominally equal to Ithreshold/10)
Iout1<<
Debounce time
tout0openret0q,
500
tout1openret1q
Ithres- mA
hold
24
3.5
0.6 V
30 µs
250 µs
4.5K Ω
2000 µs
0
µs
2.5K Ω
Vs + 8%V
2000 µs
4.5K Ω
2000 µs
4.0 mA
2000 µs
(1) Definition of theoretical equation of Ithreshold: Ithreshold (mA) = 960/Rtrip (kOhms)
3901016303
Rev. 004
Page 7 of 20
Data Sheet
Jun/04