U6808B-MFP Atmel, U6808B-MFP Datasheet - Page 8

• Manufacturer Part Number: U6808B-MFP
• Description: IC FAILSAFE W/RELAY DRVR 8-SOIC
• Manufacturer: Atmel

Specifications of U6808B-MFP

• Applications: Automotive
• Current - Supply: 15mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Characteristics (Continued)
V
Protection against Transient Voltages According to ISO TR 7637-3 Level 4 (Except Pulse 5)
8
Parameters
Number of incorrect WDI trigger
counts for locking the outputs
Number of correct WDI trigger counts
for releasing the outputs
Detection time for a stucked WDI
signal
Watchdog Timing Relative to f
Minimum pulse duration for a securely
WDI input pulse detection
Frequency range for a
correct WDI signal
Hysteresis range at the WDI ok
margins
Detection time for a dropped out WDI
signal
Note:
S
= 5 V, T
Pulse
3a
3b
1
2
5
1.
U6808B
amb
Relay driver: relay coil with R
= -40 to +125°C, reference pin is GND, f
Voltage
+110 V
+150 V
-110 V
-160 V
40 V
WDC
Test Conditions
V
V
WDI
WDI
= const.
= const.
min
Resistance
= 70 W to be added
Source
10
10
50
50
2
(1)
intern
= 100 kHz + 50% - 45%, f
Rise Time
10 V/ms
100 V/s
100 V/s
30 V/ns
20 V/ns
Symbol
t
n
WDIerror
n
release
lock
WDC
Min.
24.5
Duration
250
0.05 ms
80
250 ms
2 ms
0.1 s
0.1 s
= 10 kHz ±10%, f
Typ.
3
3
2
1
Max.
25.5
169
251
4707A–AUTO–05/03
Amount
WDI
15.000
15.000
1 h
1 h
20
= 100 Hz
Cycles
Cycles
Cycles
Cycle
Unit
ms