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參數(shù)資料
| 型號： | NCP5306DWR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Three−Phase VRM 9.0 Buck Controller |
| 中文描述： | 0.1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | SOP-24 |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 879K |
| 代理商： | NCP5306DWR2 |
NCP5306
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (continued)
(0
°
C < T
A
< 70
°
C; 0
°
C < T
J
< 125
°
C; 9.5 V < V
CC
< 14 V; C
GATEx
= 100 pF,
C
COMP
= 0.01
μ
F, C
SS
= 0.1
μ
F, C
VCC
= 0.1
μ
F, R
ROSC
= 32.4 k
Ω
, V
OCSET
= 0.54 V, DAC Code 01110; unless otherwise stated.)
Parameter
Unit
Max
Typ
Min
Test Conditions
Voltage Identification DAC (0 = Connected to GND, 1 = Open or Pull
Up to Internal 3.3 V or External Voltage 12 V) (continued)
Pull
Up Voltage
1.0 M
Ω
to GND
2.5
2.7
3.0
V
Power Good Output
Upper Threshold
Force PWRGDS
1.876 (
5%)
1.975
2.074 (+5%)
V
Lower Threshold
Force PWRGDS
5%
V
ID
/2
+5%
V
Switch Leakage Current
V
CC
= 14 V, PWRGDS = 1.4 V
0.1
1.0
μ
A
Delay
PWRGDS low to PWRGD low
100
800
2000
μ
s
Output Low Voltage
PWRGDS = 1.0 V,
I
PWRGD
= 4.0 mA
0.15
0.4
V
Voltage Feedback Error Amplifier
V
FB
Bias Current
Note 2
9.9
10.25
10.6
μ
A
Comp Source Current
COMP = 0.5 V to 2.0 V,
V
FB
= 1.8 V, DAC = 00000
15
30
60
μ
A
Comp Sink Current
COMP = 0.5 V to 2.0 V,
V
FB
= 1.15 V, DAC = 11110
15
30
60
μ
A
Transconductance
10
μ
A < I
COMP
< +10
μ
A, Note 3
200
500
750
μ
mho
Output Impedance
2.5
M
Ω
Open Loop DC Gain
Note 3
45
95
dB
Unity Gain Bandwidth
50
kHZ
PSRR @ 1.0 kHz
60
dB
COMP Max Voltage
V
FB
= 0 V
2.4
2.7
V
COMP Min Voltage
V
FB
= 1.6 V
50
150
mV
PWM Comparators
Minimum Pulse Width
40
70
ns
Transient Response Time
Measured from CS
REF
to GATEx,
COMP = 2.1 V,
CSx = CS
REF
= 0.5 V,
CS
REF
stepped from 1.2 V
2.0 V
40
60
ns
Channel Start
Up Offset
CSx = CS
REF
= V
FB
= 0 V,
measure V
COMP
when GATEx
switch high
350
600
750
mV
Artificial Ramp Amplitude
50% Duty Cycle, Note 3
115
mV
Gates
High Voltage
Measure GATEx
I
GATEx
= 1.0 mA
2.0
2.6
3.0
V
Low Voltage
Measure GATEx, I
GATEx
= 1.0 mA
0.5
0.7
V
2. The V
FB
Bias Current changes with the value of R
OSC
per Figure 4.
3. Guaranteed by design. Not tested in production.
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