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参数资料
| 型号： | LM2984MDC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| 封装： | DIE |
| 文件页数： | 11/16页 |
| 文件大小： | 317K |
| 代理商： | LM2984MDC |
Electrical Characteristics (Continued)
VIN e 14V Istby e 1 mA Cstby e 10 mF Tj e 25 C (Note 6) unless otherwise indicated
Tested
Design
Parameter
Conditions
Typical
Limit
Units
(Note 2)
(Note 3)
Vstandby (Continued)
Output Noise Voltage
10 Hz – 100 kHz Istby e 1 mA
100
m
V
Long Term Stability
20
mV1000 hr
Ripple Rejection
fo e 120 Hz
70
60
dBmin
Dropout Voltage
Istby e 1 mA
026
050
Vmax
Dropout Voltage
Istby e 75 mA
038
060
070
Vmax
Current Limit
15
12
mAmin
Maximum Operational
45V s Vstby s 6V
45
35
Vmin
Input Voltage
Rstby e 1000X
Maximum Line
Vstby s 6V
45
35
Vmin
Transient
Rstby e 1000X
Reverse Polarity
Vstby t b06V
b
30
b
15
b
15
Vmin
Input Voltage DC
Rstby e 1000X
Reverse Polarity Input
T s 100 ms Rstby e 1000X
b
55
b
35
b
35
Vmin
Voltage Transient
Electrical Characteristics
VIN e 14V Tj e 25 C (Note 6) COUT e 10 mF Cbuf e 10 mF Cstby e 10 mF unless otherwise specified
Tested
Design
Parameter
Conditions
Typical
Limit
Units
(Note 2)
(Note 3)
Tracking and Isolation
Tracking
IOUT s 500 mA Ibuf e 5 mA
g
30
g
100
mVmax
VOUT–Vstby
Istby s 75 mA
Tracking
IOUT e 5 mA Ibuf s 100 mA
g
30
g
100
mVmax
Vbuf–Vstby
Istby s 75 mA
Tracking
IOUT s 500 mA Ibuf s 100 mA
g
30
g
100
mVmax
VOUT–Vbuf
Istby e 1mA
Isolation
ROUT e 1X Ibuf s 100 mA
500
450
Vmin
Vbuf from VOUT
550
Vmax
Isolation
ROUT e 1X Istby s 75 mA
500
450
Vmin
Vstby from VOUT
550
Vmax
Isolation
Rbuf e 1X IOUT s 500 mA
500
450
Vmin
VOUT from Vbuf
550
Vmax
Isolation
Rbuf e 1X Istby s 75 mA
500
450
Vmin
Vstby from Vbuf
550
Vmax
Isolation refers to the ability of the specified output to remain within the tested limits when the other output is shorted to ground
4
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