TLE6711G Infineon Technologies, TLE6711G Datasheet - Page 9

• Manufacturer Part Number: TLE6711G
• Description: IC VREG/WATCHDOG MULTI PDSO-14
• Manufacturer: Infineon Technologies
• Type: Step-Down (Buck), Step-Up (Boost)r

Specifications of TLE6711G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -0.6 ~ 40 V
• Frequency - Switching: 95kHz
• Voltage - Input: 4.5 ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: DSO-14
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Other names: SP000012787; SP000317613; TLE6711G; TLE6711GINTR; TLE6711GNT; TLE6711GT; TLE6711GXT

is HIGH the system enable goes active HIGH with the first valid watchdog trigger pulse at pin WDI. The SEN output
goes LOW immediately if a pretrigger, a missing trigger or a power down reset occurs.
Figure 5
Figure 6
Data Sheet
worst case
definition
definition
f
f
OSC
OSC
=f
=f
WDI
WDI
WDI
OSCmax
OSCmin
Window Watchdog Definitions 1
Window Watchdog Definitions 2
= Watchdog decoder sample point
Closed window
closed window
reset start delay time after window
t
t
t
(CW+OW)min
CW
CWmax
=32*t
= t
watchdog timeout
t
t
ECW
CW
SR
CYL
= ( t
Open window
t
ECW
t
= 64*t
(1+ )
WD
CW
+ t
OW
CYL
open window
t
OW
) (1 - )
t
=32*t
OWmin
Indifferent
trigger signal
Not valid
Watchdog
CYL
Valid
9
T
WD
= 128*t
t
EOW
reset duration time after window
= end of open window
CYL
Open window
Example with:
t
t
=(32+32)x0,9= 57,6ms
t
t
CYL
(CW+OW)min
CWmax
watchdog time-out
WDR
=10% (oscillator deviation)
=1ms
= 64*t
= t
CW
=(t
CYL
(1+ )=32*1,1=35,2ms
t
EOW
CW
Closed window
+t
OW
Rev. 3.4, 2007-08-16
Circuit Description
)*(1- )=
AET02952
TLE 6711