ncv8871 ON Semiconductor, ncv8871 Datasheet - Page 5

• Manufacturer Part Number: ncv8871
• Description: Ncv8871 Automotive Grade Non-synchronous Boost Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
guaranteed by test, design or statistical correlation.
CURRENT SENSE AMPLIFIER
VOLTAGE ERROR OPERATIONAL TRANSCONDUCTANCE AMPLIFIER
GATE DRIVER
UVLO
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
Overcurrent protection,
Threshold voltage
Overcurrent protection,
Response Time
Transconductance
VEA output resistance
VFB input bias current
Reference voltage
VEA maximum output voltage
VEA minimum output voltage
VEA sourcing current
VEA sinking current
Sourcing current
Sinking current
Driving voltage dropout
Driving voltage source current
Backdrive diode voltage drop
Driving voltage
Undervoltage lock−out,
Threshold voltage
Undervoltage lock−out,
Hysteresis
Startup blanking period
Hiccup−mode period
Short circuit threshold voltage
Short circuit delay
Thermal shutdown threshold
Thermal shutdown hysteresis
Thermal shutdown delay
Characteristic
%t
%t
Symbol
V
I
I
%V
V
I
V
%V
T
g
R
vfb,bias
V
snk,vea
src,vea
V
uvlo,hys
t
V
V
sd,hys
sd,dly
m,vea
I
t
V
c,max
drv,do
t
I
I
scp,dly
hcp,dly
T
(−40°C < T
o,vea
c,min
sink
ocp
DRV
d,bd
scp
src
drv
uvlo
ref
sd
ocp
scp
J
Percent of V
From overcurrent event, Until switching
stops, V
V
Current out of VFB pin
VEA output current, Vc = 2.0 V
VEA output current, Vc = 0.7 V
V
NCV887100
NCV887101
NCV887102
NCV887103
V
NCV887100
NCV887101
NCV887102
NCV887103
V
V
V
I
NCV887100
NCV887101
NCV887102
NCV887103
V
V
From start of soft−start, Percent of t
From shutdown to start of soft−start,
Percent of t
V
From V
T
T
From T
VDRV
< 150°C, 3.2 V < V
J
J
FB
DRV
GDRV
IN
IN
DRV
IN
IN
FB
rising
falling
http://onsemi.com
− V
− V
falling
rising
– V
as percent of V
≥ 6 V, V
− V
= 0.1 − 25 mA
J
≥ 2 V
DRV
DRV
FB
ref
ISNS
> T
IN
< V
= ± 20 mV
, Iv
, I
ss
= 1 V
sd
cl
= V
d,bd
DRV
scp
5
DRV
to stop switching
Conditions
OCP
= 5 mA
to stop switching
− V
= 25 mA
ref
IN
+ 40 mV
GDRV
< 40 V, unless otherwise specified) Min/Max values are
= 2 V
ss
1.176
Min
125
600
400
600
400
500
250
500
250
100
160
0.8
2.0
2.5
6.0
6.0
8.4
3.0
80
80
35
10
50
70
60
10
−
−
−
−
−
−
−
1.200
10.5
Typ
150
100
100
800
575
800
575
600
350
600
350
125
120
170
1.2
0.5
0.3
6.3
6.3
8.4
3.1
45
85
67
35
15
−
−
−
−
−
−
1.224
Max
175
125
200
150
100
100
180
100
1.5
2.0
0.3
0.6
0.7
6.6
6.6
8.8
3.2
75
20
11
−
−
−
−
−
−
−
−
−
−
−
−
−
Unit
MW
mS
mA
mA
mA
mV
mA
mA
mA
ns
ns
°C
°C
ns
%
%
%
%
V
V
V
V
V
V
V