U6268B Datasheet, PDF (9/14 Pages) TEMIC Semiconductors – Side-Airbag Sensor Dual Interface

U6268B
6. Electrical Characteristics (Continued)
T_amb = –40°C to +95°C and T_j = –40°C to +150°C,
Operation supply-voltage range V_S = 5.7V to 18V continuously, V_S ≤ 25V for maximum 25 min, V_S ≤ 40V for up to 500 ms.
The current values are based on R = 750Ω, 0%-resistor at OCM1/OCM2 pins.
Parameters
Test Conditions
Symbol
Min. Typ. Max.
Leakage current at disabled OUTx
OUTx short to GND, V_S ≤ 25V
OUTx short to GND, V_S ≤ 38.5V
I_{OUT_leak}
–0.02
–12
Leakage voltage at disabled OUTx OUTx open, V_S ≤ 38.5V
V_{OUT_leak}
4.3
Internal pull-down current
V_S ≤ 18V
V_S ≤ 40V
I_{OUT_sink}
1.8
2.5
4
4.5
Supply rejection ratio
V_SC = 7.6V
V_{rej_mV}
80
Supply rejection ratio
Variation of V_S = 8.4V to 40V
in 10 ms
V_{rej_dB}
51.9
Minimum capacity at OUTx for phase
margin
C_{OUT_min}
33
Switching on ENABLE = 1 to 90%
Enable_on
3
30
Delay time with C_out = 47 nF
V_OUT reached
Switching off ENABLE = 0 to 10%
Enable_off
30
100
V_OUT reached
Function OCM1, OCM2
CLLx low-level voltage threshold
V_{CLL_L}
1.75
2.4
Voltage threshold CLL-comparator CLLx high-level voltage threshold
V_{CLL_H}
1.43
1.9
Voltage hysteresis
V_{CLL_hys}
0.26
0.6
Minimum voltage at OCMx
I_OUT = 0 to 5 mA
V_{OCM_min}
0.5
Current-limitation level
V_S ≤ 40V, OUTx short to GND
V_{OCM_lim}
4.3
5.3
Overcurrent-detection level
V_S ≤ 40V
V_{OCM_det}
4.2
4.9
Current limitation minus overcurrent
detection
V_{OCM_lim} – V_{OCM_over}
∆_lim_OCM 0.15
0.5
Internal pull-down current
Function RETURN1, RETURN2
I_{OCM_sink}
0.1
0.45
Enable high saturation voltage
I_RETURN = 50 mA
V_{ret_sat}
0.5
Dynamic resistance
dI ≥ 10 mA
R_ret
2
8
Current limitation
Enable high, V_RETURNx = 2V
I_{ret_lim}
60
150
RETURNx is always higher than
Enable high, V_RETURNx ≤ 18V
I_{ret_lim}
70
200
current limitation OUTx
Enable low, V_RETURNx ≤ 18V
I_{ret_low}
0.8
2
Threshold comparator,
switch-off return
V_{ret_low}
1.4
2
Overcurrent-detection level
Threshold comparator,
switch-on return
V_{ret_high}
1.1
1.5
Hysteresis
V_{ret_hys}
0.2
0.7
Delay time
C_RETURN = 47 nF
Switching on I_RETURN at 50 mA
t_{dRet_on}
3
30
Switching off I_RETURN at 1 mA
t_{dRet_off}
30
90
Function CLL1, CLL2 (CLLx with 2 kΩ to 5V)
I_OUT threshold CLL comparator
CLL saturation voltage
CLL leakage current
R_OCM = 750Ω
CLL low-level threshold
CLL high-level threshold
Hysteresis
I_CLL ≤ 2.5 mA
V_CLL ≤ 6.5V
I_{CLL_L}
I_{CLL_H}
I_{CLL_hys}
V_{CLL_sat}
I_{CLL_leak}
23.3
19.1
3.5
27.3
22.3
8.2
0.4
1
Unit
mA
mA
V
mA
mA
mV
dB
nF
µs
µs
V
V
V
V
V
V
V
mA
V
Ω
mA
mA
mA
V
V
V
µs
µs
mA
mA
mA
V
µA
9
4808B–AUTO–09/05