NCP4308
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7
ELECTRICAL CHARACTERISTICS −40°C ≤ T
J
≤ 125°C; V
CC
= 12 V; C
DRV
= 0 nF; R
MIN_TON
= R
MIN_TOFF
= 10 kW; V
CS
= −1 to
+4 V; f
CS
= 100 kHz, DC
CS
= 50%, unless otherwise noted. Typical values are at T
J
= +25°C
Parameter
Test Conditions Symbol Min Typ Max Unit
SUPPLY SECTION
VCC UVLO (ver. B & C)
V
CC
rising, V
CS
= 0 V V
CCON
8.3 8.8 9.4
V
V
CC
falling, V
CS
= 0 V V
CCOFF
7.3 7.8 8.3
VCC UVLO Hysteresis (ver. B & C) V
CCHYS
1.0 V
VCC UVLO (ver. A, D & Q)
V
CC
rising, V
CS
= 0 V V
CCON
4.20 4.45 4.80
V
V
CC
falling, V
CS
= 0 V V
CCOFF
3.70 3.95 4.20
VCC UVLO Hysteresis
(ver. A, D & Q)
V
CCHYS
0.5 V
Start−up Delay
V
CC
rising from 0 to V
CCON
+ 1 V @ tr = 10 ms,
V
CS
= 0 V
t
START_DEL
75 125
ms
Current Consumption,
R
MIN_TON
= R
MIN_TOFF
= 0 kW
C
DRV
= 0 nF, f
CS
= 500 kHz
A, C
I
CC
3.0 4.0 5.6
mA
B, D, Q 3.5 4.5 6.0
C
DRV
= 1 nF, f
CS
= 500 kHz
A, C 4.5 6.0 7.5
B, D, Q 7.7 9.0 10.7
C
DRV
= 10 nF, f
CS
= 500 kHz
A, C 20 25 30
B, D, Q 40 50 60
Current Consumption
No switching, V
CS
= 0 V, R
MIN_TON
= R
MIN_TOFF
= 0 kW
I
CC
1.5 2.0 2.5 mA
No switching, V
CS
= 0 V, R
MIN_TON
= R
MIN_TOFF
= 0 kW, DFN8, WDFN8
I
CC
1.0 2.0 2.5 mA
Current Consumption below UVLO No switching, V
CC
= V
CCOFF
– 0.1 V, V
CS
= 0 V I
CC_UVLO
75 125
mA
DRIVER OUTPUT
Output Voltage Rise−Time
C
DRV
= 10 nF, 10% to 90% V
DRVMAX
t
r
40 55 ns
Output Voltage Fall−Time C
DRV
= 10 nF, 90% to 10% V
DRVMAX
t
f
20 35 ns
Driver Source Resistance R
DRV_SOURCE
1.2
W
Driver Sink Resistance R
DRV_SINK
0.5
W
Output Peak Source Current I
DRV_SOURCE
4 A
Output Peak Sink Current I
DRV_SINK
8 A
Maximum Driver Output Voltage
V
CC
= 35 V, C
DRV
> 1 nF (ver. B, D and Q)
V
DRVMAX
9.0 9.5 10.5
V
V
CC
= 35 V, C
DRV
> 1 nF (ver. A, C) 4.3 4.7 5.5
Minimum Driver Output Voltage
V
CC
= V
CCOFF
+ 200 mV (ver. B)
V
DRVMIN
7.2 7.8 8.5
V
V
CC
= V
CCOFF
+ 200 mV (ver. C) 4.2 4.7 5.3
V
CC
= V
CCOFF
+ 200 mV (ver. A, D and Q) 3.6 4.0 4.4
CS INPUT
Total Propagation Delay From CS
to DRV Output On
V
CS
goes down from 4 to −1 V, t
f_CS
= 5 ns t
PD_ON
35 60 ns
Total Propagation Delay From CS
to DRV Output Off
V
CS
goes up from −1 to 4 V, t
r_CS
= 5 ns t
PD_OFF
12 23 ns
CS Bias Current V
CS
= −20 mV I
CS
−105 −100 −95
mA
Turn On CS Threshold Voltage V
TH_CS_ON
−120 −75 −40 mV
Turn Off CS Threshold Voltage Guaranteed by Design V
TH_CS_OFF
−1 0 mV
Turn Off Timer Reset Threshold
Voltage
V
TH_CS_RESET
0.4 0.5 0.6 V
CS Leakage Current V
CS
= 150 V I
CS_LEAKAGE
0.4
mA
