參數(shù)資料
型號(hào)： NCP4326DR2
廠商： ON SEMICONDUCTOR
元件分類： 模擬信號(hào)調(diào)理
英文描述： Secondary Controller for Multi−Output Quasi−Resonant Switchmode Power Supplies
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO16
封裝： SOIC-16
文件頁(yè)數(shù)： 8/30頁(yè)
文件大小： 432K
代理商： NCP4326DR2
NCP4326
http://onsemi.com
8
ELECTRICAL CHARACTERISTICS
(For typical values T
J
= 25
°
C, for min/max values T
J
= 0
°
C to +105
°
C, Vcc = 12 V unless
otherwise noted.)
Characteristic
Unit
Max
Typ
Min
Symbol
Pin
Flux Pin
Internal Current Sourced by Flux pin when it is grounded (Note 5)
14
I
Flux
120
A
Maximum Sink Current on Flux pin when the internal 1.0 V clamp is
activated
14
I
Flux_max
1.0
mA
Input Clamp Voltage
High state: when a current is sunk by pin 14 (Ipin 14 = I
Flux_max
)
Low state: when a current is sourced by pin 14 (Ipin 14 = 1.0 mA)
14
V
Flux_H
V
Flux_L
1.4
60
V
mV
Internal Voltage gain of input signal sensed on Flux pin
(guaranteed by design)
14
Gain
9.5
N/A
Synchronization Block
Input Threshold Voltage (Vpin 7 decreasing)
7
V
sync
_
th
50
70
100
mV
Hysteresis (Vpin 7 increasing)
7
V
sync_Hyst
35
mV
Maximum Sink Current on Sync pin when the internal 7.0 V clamp is
activated
7
Is
ync_max
3.0
mA
Input Clamp Voltage
High state: when a current is sunk by pin 7 (Ipin 7 = I
sync_max
)
Low state: when a current is sourced by pin 7 (Ipin 7 = 3.0 mA)
7
7
VC
H
VC
L
7.4
0.3
V
Delay between the Sync and DRVx pin (Figures 8 and 9), when
applying a falling edge on Sync in normal mode operation (Note 6)
with 1.0 nF connected to DRVx pin
7 and 11
or
7 and 13
T
prop_ON
200
500
ns
Delay between the Ct voltage (V
Ct
) and DRVx pin (Figures 8 and 9),
when applying a rising edge on Ct @ V
CPx
= 1.7 V in normal mode
operation (Note 6) with 1.0 nF connected to DRVx pin
4, 7 and 11
or
1, 7 and 13
T
prop_OFF
280
500
ns
Internal input capacitance at Vpin 7 = 1.0 V
7
C
par
10
pF
Error Amplifier Section 1 and 2
Voltage Feedback Input @ T
J
= 25
°
C (Note 7)
* Voltage follower measurement to reach 1% accuracy
2, 5
V
FB1, 2
1.241
1.253
1.266
V
Input Bias Current (V
FB
= 1.30 V)
2, 5
I
IB1, 2
0.1
A
Open Loop Voltage Gain (V
CPx
= 1.0 V to 5.0 V)
2, 5
A
VOL1, 2
90
dB
Unity Gain Bandwidth (T
J
= 25
°
C)
2, 5
BW
1, 2
3.3
MHz
Power Supply Rejection Ratio
(Vcc = 10 V to 15 V, Frequency range 120 Hz)
2, 5
PSRR
1, 2
55
dB
Output Current
Sink Current (V
CPx
= 1.1 V, V
FB
= 1.45 V)
Source Current (V
CPx
= 4.5 V, V
FB
= 1.05 V)
1, 4
1, 4
I
sink1, 2
I
source1, 2
2.0
+6.0
13
5.0
mA
Output Voltage Swing
High State (R
L
= 15 k to Ground, V
FB
=1.05 V)
Low State (R
L
= 15 k to Vcc, V
FB
=1.45 V)
1, 4
1, 4
V
OH1, 2
V
OL1, 2
4.8
5.0
0.7
1.1
V
5. See characterization curves I
(V
Flux_pin
) with 100 mV < V
Flux_pin
< +100 mV.
6. Normal operation when V
> V
7. See characterization curve for Voltage Reference vs. Temperature.
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