ncv8881 ON Semiconductor, ncv8881 Datasheet - Page 7

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

SMPS REGULATOR
ELECTRICAL CHARACTERISTICS
otherwise) Min/Max values are valid for the temperature range −40°C vT
design or statistical correlation.
SOFT−START
VOLTAGE REFERENCE (FB Pin)
FB PIN MONITOR (SMPS Output Monitor)
ERROR AMPLIFIER
OSCILLATOR
SYNCHRONIZATION
7. Guaranteed by design.
Soft−Start Completion Time
FB Voltage (COMP connected to FB)
FB Monitor High Threshold
FB Monitor Low Threshold
FB Monitor Hysteresis
FB Low to RESB Output Delay
FB Bias Current
DC Gain
Gain−Bandwidth Product
Slew Rate COMP Rising
Slew Rate COMP Falling
COMP Source Current
COMP Sink Current
Ramp Peak Voltage
Ramp Valley Voltage
Ramp Amplitude
Frequency
Maximum ROSC Controlled Frequency
ROSC Pin Voltage
Frequency Range
Synchronization Delay
De−Synchronization Delay
Input Current
SYNC Logic High Threshold
SYNC Logic Low Threshold
Response to Input Held High
Parameter
(V
VIN
= 13.2 V, V
V
V
V
F
t
V
V
I
f
Symbol
t
USNCDLY
t
I
SOURCE
SYNCMX
V
FBMONH
FBMONY
OSCMAX
SNCDLY
FBMONL
FBLDLY
SNCTHH
FBBIAS
SNCTHL
GBW
V
F
I
ROSC
SINK
t
A
OSC
FBR
SS
V
http://onsemi.com
EN
T
−40°C vT
V
V
V
(Note 7)
(Note 7)
V
I
voltage levels. (Note 7)
V
I
voltage levels. (Note 7)
V
V
V
V
R
ROSC = 36 kW
Resistor from ROSC to GND
R
(Note 7)
From rising SYNC edge
From last rising SYNC edge;
ROSC = open
V
Reverts to internal oscillator
(Note 7)
= 2.0 V, V
COMP
COMP
J
FB
FB
FB
FB
FB
COMP
COMP
COMP
COMP
SYNC
ROSC
ROSC
= 25°C
increasing; Percent of V
decreasing; Percent of V
= V
= V
= V
7
= −1 mA, V
= 1 mA, V
= 5.0 V
= 2.2 V
= 3.2 V
= 2.2 V
= 1.1 V
= open
= open
FBR
FBR
FBR
BST
J
J
v 150°C
− 25 mV, C
+25 mV, C
v 150 °C unless noted otherwise, and are guaranteed by test,
= V
Conditions
COMP
SW
COMP
+ 8.2 V, C
COMP
within ramp
COMP
within ramp
FBR
= 50 pF,
FBR
= 50 pF,
BST
= 0.1 mF, C
0.792
0.784
0.970
−0.1
Min
154
337
500
160
200
1.5
1.8
1.3
0.6
2.8
1.1
1.6
6.6
0.8
91
89
10
70
IN
3
8
6
6
= 4.7 mF unless specified
1.02
Typ
170
700
370
0.8
0.8
2.5
1.6
3.1
1.2
1.9
7.8
95
93
20
5
4
4
3
5
0.808
0.816
1.080
Max
186
429
850
600
500
0.1
3.2
1.3
2.0
99
97
10
10
10
10
10
10
10
7
2
MHz
Unit
V/ms
V/ms
kHz
kHz
kHz
mV
mA
mA
mA
mA
ms
mA
dB
mA
ms
ns
ms
%
%
V
V
V
V
V
V
V