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參數(shù)資料
| 型號： | NCP5322ADWG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Two−Phase Buck Controller with Integrated Gate Drivers and 5−Bit DAC |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | LEAD FREE, SOIC-28 |
| 文件頁數(shù)： | 6/31頁 |
| 文件大?。?/td> | 726K |
| 代理商： | NCP5322ADWG |
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NCP5322A
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS
(0
°
C < T
A
< 70
°
C; 0
°
C < T
J
< 125
°
C; 9.0
V < V
CCH1
= V
CCH2
< 20 V; 4.5 V <
V
CCL
= V
CCL1
= V
CCL2
< 14
V; C
GATE
= 3.3
nF, R
R(OSC)
= 32.4
k , C
COMP
= 1.0
nF, C
REF
= 0.1 F, C
SS
= 0.1 F,
DAC Code 10000 (1.45 V), C
VCC
= 1.0
F; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Power Good Output
Power Good Fault Delay
CS
REF
= DAC to DAC
±
15%
60
120
240
s
PWRGD Low Voltage
CS
REF
= 1.0 V, I
PWRGD
= 4.0 mA
0.25
0.40
V
Output Leakage Current
CS
REF
= 1.45 V, PWRGD = 5.5 V
0.1
10
A
Lower Threshold
15
12
9.0
%
Upper Threshold
9.0
12
15
%
Voltage Feedback Error Amplifier
V
FB
Bias Current
1.0
V < V
FB
< 1.9
V. Note 3.
9.0
10.3
11.5
A
COMP Source Current
COMP = 0.5
V to 2.0
V;
V
FB
= 1.8
V; DAC = 00000
15
30
60
A
COMP Sink Current
COMP = 0.5
V to 2.0
V;
V
FB
= 1.9
V; DAC = 00000
15
30
60
A
COMP Clamp Voltage
SS = 0.25 V to 2.5 V; V
FB
= LGND;
Measure COMP
SS
Voltage
V
COMP Max Voltage
COMP Open; V
FB
= 1.8
V; DAC = 00000
2.4
2.7
V
COMP Min Voltage
COMP Open; V
FB
= 1.9
V; DAC = 00000
0.1
0.2
V
Transconductance
10
A < I
COMP
< +10
A
32
mmho
Output Impedance
2.5
M
Open Loop DC Gain
Note 4.
60
90
dB
Unity Gain Bandwidth
0.01
F COMP Capacitor
400
kHz
PSRR @ 1.0
kHz
70
dB
Soft Start
Soft Start Charge Current
0.2 V
≤
SS
≤
3.0 V
15
30
50
A
Soft Start Discharge Current
0.2 V
≤
SS
≤
3.0 V
4.0
7.5
13
A
Hiccup Mode Charge/Discharge Ratio
3.0
4.0
Soft Start Clamp Voltage
3.3
4.0
4.2
V
Soft Start Discharge Threshold Voltage
0.20
0.27
0.34
V
PWM Comparators
Minimum Pulse Width
CS1 = CS2 = CS
REF
350
475
ns
Channel Start Up Offset
V(CS1) = V(CS2) = V(V
FB
) = V(CS
REF
) = 0
V;
Measure V(COMP) when GATE(H)1,
GATE(H)2, switch high
0.3
0.4
0.5
V
GATE(H) and GATE(L)
High Voltage (AC)
Measure V
CCLX
GATE(L)
X
or
V
CCHX
GATE(H)
X
. Note 4.
0
1.0
V
Low Voltage (AC)
Measure GATE(L)
X or
GATE(H)
X
. Note 4.
0
0.5
V
Rise Time GATE(H)
X
1.0 V < GATE < 8.0 V; V
CCHX
= 10 V
35
80
ns
3. The V
FB
Bias Current changes with the value of R
OSC
per Figure 5.
4. Guaranteed by design. Not tested in production.
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相關(guān)代理商/技術(shù)參數(shù) |
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| NCP5322ADWR2 | 功能描述:DC/DC 開關(guān)控制器 2 Phase Buck w/Gate RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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