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NCP4326DR2

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
NCP4326
http://onsemi.com
10
DRVX Pin
Time
Time
Flux Pin
Vcc/2
DRVX Pin
Time
Time
1.0 V
Flux Pin
Vcc/2
0.1 V
0 V
1.5 V
0.5 V
Time
Driver is disabled
Driver in Soft−Start Mode
Driver in Normal Operation Mode
Vcc/2
STBY pin
DRVx pin
ENx pin
Vcc/2
STBY pin
DRVx pin
ENx pin
Figure 4. Standby Propagation Delay Definition
Figure 5. Enable Threshold Definition
Figure 6. T
SS_ON
and T
SS_OFF
Propagation Delay Definition (in Soft−Start Mode Operation)
V
ENX
= 5.0 V
V
th
= 2.5 V
T
stby_disch
T
stby_on
T
stby_off
V
th
= 2.5 V
ENx pin
V
ENX_TH2
V
ENX_TH1_max
V
ENX_TH1_min
V
ENX
V
INT_Flux
V
ENX_TH1
V
ENX_max1*90%
T
SS_ON
1.0 V
0.1 V
0 V
1.5 V
0.5 V
V
INT_Flux
V
ENX
T
SS_OFF
NCP4326
http://onsemi.com
11
Figure 7. Discharging Time Definition (Ct Pin)
Figure 8. T
prop_ON
and T
prop_OFF
Propagation Delay Definition (in Normal Mode Operation)
Figure 9. T
prop_ON
and T
prop_OFF
Timing Position in the Timing Application Diagram (in Normal Mode Operation)
Sync Pin
DRVx
Time
Time
Vcc/2
CPX
DRVx
Time
Time
1.6V
Voltage on Ct Pin
Vcc/2
Sync Pin
Ct Pin
Time
Time
T
prop_ON
T
Ct_disch
V
Ct_min*1.05
V
Ct_min
V
Ct_max1
T
prop_OFF
Sync Pin
V
sync
V
Ct
I
s1
I
s2
V
EA
I
s1_pk
I
s2_pk
V
o
2V
o
n
l
n
p
V
in
t
t
t
t
t
0
1.5 V
0
0
0
Drv
T
prop_ON
T
prop_OFF
4.0 V
flyback stroke
D blocks
T
s
NCP4326
http://onsemi.com
12
12.5
13.0
13.5
14.0
14.5
Figure 10. Driver 1 Output Voltage High State
@ V
CC
= 15 V vs. Temperature
TEMPERATURE (°C)
V
OH
(V)
V
OH
@ 250 mA
V
OH
@ 20 mA
Figure 11. Driver 1 Output Voltage Low State
@ V
CC
= 15 V vs. Temperature
Figure 12. Driver 2 Output Voltage High State
@ V
CC
= 15 V vs. Temperature
Figure 13. Driver 2 Output Voltage Low State
@ V
CC
= 15 V vs. Temperature
Figure 14. Standby Pin Threshold Voltage vs.
Temperature
TEMPERATURE (°C)
Vth Standby (V)
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Figure 15. Soft−Start Current Source on Enable
Pin when V
ENx
= 2.5 V vs. Temperature
150
155
165
190
TEMPERATURE (°C)
I
ENx
(A)
175
160
170
180
EN1
0 20 40 60 100 12080
0 20 40 60 100 12
0
800 20 40 60 100 12080
0.50
0.60
0.70
0.80
0.90
1.00
1.10
TEMPERATURE (°C)
V
OL
(V)
V
OL
@ 250 mA
V
OL
@ 20 mA
0 20 40 60 100 12
0
80
12.5
13.0
13.5
14.0
14.5
TEMPERATURE (°C)
V
OH
(V)
V
OH
@ 250 mA
V
OH
@ 20 mA
0 20 40 60 100 12080
1.20
0.60
0.70
0.80
0.90
1.00
1.10
TEMPERATURE (°C)
V
OL
(V)
V
OL
@ 250 mA
V
OL
@ 20 mA
0 20 40 60 100 12
0
80
2.8
2.9
3.0
185
EN2
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

NCP4326DR2

Mfr. #:
Buy NCP4326DR2
Manufacturer:
ON Semiconductor
Description:
IC REG SECONDARY CTR 3OUT 16SOIC
Lifecycle:
New from this manufacturer.
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