U6808B-MFPG3Y Atmel, U6808B-MFPG3Y Datasheet - Page 9

• Manufacturer Part Number: U6808B-MFPG3Y
• Description: MOSFET & Power Driver ICs Failsafe IC with Relay Driver
• Manufacturer: Atmel
• Type: Special Fail-Safer

Specifications of U6808B-MFPG3Y

• Supply Voltage (min): 4.5 V
• Supply Current: 15 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7. Electrical Characteristics (Continued)
V
8. Protection against Transient Voltages According to ISO TR 7637-3 Level 4
4707B–AUTO–10/05
Parameters
Nominal frequency for WDI
Nominal frequency for WDC
Minimum pulse duration for a securely
WDI input pulse detection
Frequency range for a correct WDI
signal
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
S
Note:
= 5V, T
(Except Pulse 5)
Pulse
amb
3a
3b
1. Relay driver: relay coil with R
1
2
5
= –40 to +125°C, reference pin is GND, f
Voltage
–110V
+110V
–160V
+150V
40V
WDC
Test Conditions
f
f
V
V
RC
WDI
WDI
WDI
min
= 100
= 1/100
= constant
= constant
= 70 to be added
Resistance
f
Source
WDI
intern
f
WDC
10
10
50
50
2
= 100 kHz + 50% – 45%, f
(1)
Rise Time
10V/ms
100V/s
100V/s
30V/ns
20V/ns
Symbol
t
n
WDIerror
t
f
n
release
f
P,WDI
f
WDC
WDC
WDI
WDI
lock
= 10 kHz ±10%, f
Min.
64.7
24.5
182
250
Duration
10
80
1
0.05 ms
250 ms
2 ms
0.1s
0.1s
WDI
Typ.
3
3
2
1
= 100 Hz
112.5
Max.
25.5
130
169
251
U6808B
13
Amount
15.000
15.000
1h
1h
20
Cycles
Cycles
Cycles
Cycle
Unit
kHz
ms
Hz
Hz
µs
9