ncv8881 ON Semiconductor, ncv8881 Datasheet - Page 9

• Manufacturer Part Number: ncv8881
• Description: Ncv8881 1.5a Automotive Buck Regulator With Watchdog
• Manufacturer: ON Semiconductor

WATCHDOG
ELECTRICAL CHARACTERISTICS
the temperature range −40°C vT
WATCHDOG INPUT (WDI pin)
RDLY INPUT
RESB OUTPUT
8. Guaranteed by design.
Input High Voltage
Input Low Voltage
Input Current
Threshold Frequency
Output Voltage
Output Voltage
Output Voltage Low
Output leakage
POR Delay Time
Boot Delay Time
Watchdog Delay Time
Parameter
J
v 150°C unless noted otherwise, and are guaranteed by test, design or statistical correlation.
(V
VIN
= 13.2 V, V
Symbol
V
f
WDTH
t
RBLO
t
POR
t
WD
BD
http://onsemi.com
EN
V
to prevent RESB low
R
R
R
R
R
V
V
V
R
R
R
R
R
RESB high to low;
R
R
R
R
R
WDI low to RESB low;
R
R
R
R
R
= 2 V, C
WDI
FB
FB
FB
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
DLY
< V
> V
> V
= 5.0 V
= 10 kW
= 20 kW
= 30 kW
= 10 kW
= 30 kW
= 10 kW
= 20 kW (Note 8)
= 30 kW (Note 8)
= open; R
= open; R
= 10 kW
= 20 kW (Note 8)
= 30 kW (Note 8)
= open; R
= open; R
= 10 kW
= 20 kW (Note 8)
= 30 kW (Note 8)
= open; R
= open; R
9
FBMONL
FBMONH
FBMONH
IN
= 4.7 mF unless specified otherwise) Min/Max values are valid for
Conditions
OSC
OSC
OSC
OSC
OSC
OSC
, sinking 0.5 mA
to RESB high;
= 36 kW (Note 8)
= open
= 36 kW (Note 8)
= open
= 36 kW (Note 8)
= open
20.85
10.42
0.917
0.940
6.95
Min
120
144
2.0
4.0
12
40
80
48
96
8
0.99
1.02
0.03
Typ
100
150
120
180
0.4
10
15
50
60
5
5
1.067
1.092
1100
1300
Max
120
180
500
144
216
550
110
0.8
0.1
6.0
10
12
18
50
60
72
5
Unit
ms
ms
ms
mA
Hz
mA
V
V
V
V
V