参数资料
型号: NCP5331FTR2
厂商: ON Semiconductor
文件页数: 6/36页
文件大小: 0K
描述: IC CTRLR BUCK 2PH PWM DRV 32LQFP
产品变化通告: Product Obsolescence 11/Feb/2009
标准包装: 1
应用: 控制器,AMD Athlon?
输入电压: 9 V ~ 14 V
输出数: 2
输出电压: 5V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 剪切带 (CT)
其它名称: NCP5331FTR2OSCT
NCP5331
ELECTRICAL CHARACTERISTICS (continued) (0 ° C < T A < 70 ° C; 0 ° C < T J < 125 ° C; 9.0 V < V CCL < 16 V; 9.0 V < V CCH < 20 V;
9.0 V < V CCL1 = V CCL2 < 14 V; C GATE = 3.3 nF, R ROSC = 32.4 k W , C COMP = 1.0 nF, C 5V(REF) = 0.1 m F, DAC Code 01110 (1.2 V),
C VCC = 1.0 m F, 0.25 V ≤ I LIM ≤ 1.0 V; unless otherwise noted)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Voltage Identification DAC (continued)
?SEN Bias Current
?SEN Offset from GND
LGND < 55 mV, All DAC Codes
?
40
?150
80
?
120
200
m A
mV
Power Good Output
Internal Delay Time
PWRGD Low Output Voltage
Output Leakage Current
V CORE /CS REF Comparator
?
I PGD = 4.0 mA
V PGD = 5.5 V
Tolerance from DAC Setting
175
?
?
?15%
290
250
0.1
?12.5%
425
400
2.0
?10%
m s
mV
m A
%
Threshold Voltage
C PGD Charge Current
C PGD Comparator Threshold
R OSC = 32.4 k W
?
14.5
2.8
16
3.0
17.5
3.2
m A
V
Voltage
C PGD External Delay Time
C PGD = 0.033 m F. Note 1.
4.8
6.0
7.8
ms
Voltage Feedback Error Amplifier
V FB Bias Current
COMP Source Current
COMP Sink Current
COMP Discharge Threshold
0.7 V < V FB < 1.6 V. Note 2.
COMP = 0.5 V to 2.0 V; V FB = 0.8 V
COMP = 0.5 V to 2.0 V; V FB = 1.5 V
?
9.4
15
15
0.20
10.3
30
30
0.33
11.1
60
60
0.40
m A
m A
m A
V
Voltage
Transconductance
Output Impedance
Open Loop Dc Gain
Unity Gain Bandwidth
PSRR @ 1.0 kHz
COMP Max Voltage
COMP Min Voltage
Hiccup Latch Discharge Current
Hiccup Latch Charge/Discharge
?10 m A < I COMP < +10 m A
?
Note 1.
C COMP = 0.01 m F
?
V FB = 0.8 V, COMP Open
V FB = 1.5 V, COMP Open
?
?
?
?
60
?
?
4.1
?
4.0
?
32
2.5
90
400
70
4.4
0.1
7.5
4.0
?
?
?
?
?
?
0.2
13
?
mmho
M W
dB
kHz
dB
V
V
m A
?
Ratio
PWM Comparators
Minimum Pulse Width
Channel Start?Up Offset
CS1 = CS2 = CS REF
CS1 = CS2 = V FB = CS REF = 0 V;
?
0.45
235
0.60
280
0.80
ns
V
Measure COMP when GHx switch High
Overcurrent Shutdown Timer
Overcurrent Shutdown Voltage
?
2.8
3.0
3.2
V
Threshold
C OVC Low Output Voltage
C OVC Source Current
?
?
?
3.0
250
5.0
400
8.0
mV
m A
1. Guaranteed by design. Not tested in production.
2. The V FB Bias Current changes with the value of R OSC per Figure 5.
http://onsemi.com
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