参数资料
型号: NCP5332ADW
厂商: ON Semiconductor
文件页数: 6/30页
文件大小: 0K
描述: IC CTLR BUCK 2PH DRVR/DAC 28SOIC
产品变化通告: Product Obsolescence 30/Sept/2009
标准包装: 26
应用: 控制器,高性能处理器
输入电压: 4.5 V ~ 14 V
输出数: 2
输出电压: 可调
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
NCP5332A
ELECTRICAL CHARACTERISTICS (continued) (0 ° C < T A < 70 ° C; 0 ° C < T J < 125 ° C; 9.5 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 μ F, C SS = 0.1 μ F,
DAC Code 10000 (1.45 V), C VCC = 1.0 μ F; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Power Good Output
Power Good Fault Delay
PWRGD Low Voltage
Output Leakage Current
Lower Threshold
Upper Threshold
CS REF = DAC to 2.5 V
CS REF = 1.0 V, I PWRGD = 4.0 mA
CS REF = 1.45 V, PWRGD = 5.5 V
% of Nominal VID
?
60
?
?
?18
1.90
120
0.25
0.1
?14
2.03
240
0.40
10
?11
2.15
μ s
V
μ A
%
V
Voltage Feedback Error Amplifier
V FB Bias Current
COMP Source Current
1.0 V < V FB < 1.9 V. Note 2.
COMP = 0.5 V to 2.0 V;
27
15
31
30
34.5
60
μ A
μ A
V FB = 1.8 V; DAC = 00000
COMP Sink Current
COMP = 0.5 V to 2.0 V;
15
30
60
μ A
V FB = 1.9 V; DAC = 00000
COMP Clamp Voltage
SS = 0.25 V to 2.5 V; V FB = LGND;
?
?
SS
V
Measure COMP, Note 3.
Voltage
COMP Max Voltage
COMP Min Voltage
Transconductance
Output Impedance
Open Loop DC Gain
Unity Gain Bandwidth
PSRR @ 1.0 kHz
COMP Open; V FB = 1.8 V; DAC = 00000
COMP Open; V FB = 1.9 V; DAC = 00000
?10 μ A < I COMP < +10 μ A, Note 3.
Note 3.
Note 3.
0.01 μ F COMP Capacitor, Note 3.
Note 3.
2.4
?
?
?
60
?
?
2.7
0.1
32
2.5
90
400
70
?
0.2
?
?
?
?
?
V
V
mmho
M ?
dB
kHz
dB
Soft Start
Soft Start Charge Current
Soft Start Discharge Current
Hiccup Mode Charge/Discharge Ratio
Soft Start Clamp Voltage
Soft Start Discharge Threshold Voltage
0.2 V ≤ SS ≤ 3.0 V
0.2 V ≤ SS ≤ 3.0 V
?
?
?
15
4.0
3.0
3.3
0.20
30
7.5
4.0
4.0
0.27
50
13
?
4.2
0.34
μ A
μ A
?
V
V
PWM Comparators
Minimum Pulse Width
Channel Start Up Offset
CS1 = CS2 = CS REF
V(CS1) = V(CS2) = V(V FB ) = V(CS REF ) = 0 V;
?
0.3
350
0.4
475
0.5
ns
V
Measure V(COMP) when GATE(H)1,
GATE(H)2, switch high
GATE(H) and GATE(L)
High Voltage (AC)
Measure V CCLX ? GATE(L) X or
?
0
1.0
V
V CCHX ? GATE(H) X . Note 3.
Low Voltage (AC)
Rise Time GATE(H) X
Measure GATE(L) X or GATE(H) X . Note 3.
1.0 V < GATE < 8.0 V; V CCHX = 10 V
?
?
0
35
0.5
80
V
ns
2. The V FB Bias Current changes with the value of R OSC per Figure 5.
3. Guaranteed by design. Not tested in production.
http://onsemi.com
6
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