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參數(shù)資料
| 型號(hào)： | UC1914 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5V to 35V Hot Swap Power Manager |
| 中文描述： | 5V至35V的熱插拔電源管理器 |
| 文件頁(yè)數(shù)： | 14/14頁(yè) |
| 文件大?。?/td> | 652K |
| 代理商： | UC1914 |
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14
UC1914
UC2914
UC3914
UNITRODE CORPORATION
7 CONTINENTAL BLVD. MERRIMACK, NH 03054
TEL. (603) 424-2410
FAX (603) 424-3460
14
12
11
17
2
10
4
5
9
18
1
8
7
16
6
15
13
15V
+
–
VPUMP
PLIM
VOUTS
OUT
+
–
+
–
+
+
+
–
1.4V
+
–
+
–
2.5V
0.5V
S
Q
Q
R
FAULT
TIMING
CIRCUITRY
FAULT
LATCH
3m
A
H=CLOSE
3mA
103mA
UNDERVOLTAGE
LOCKOUT
4.0V / 3.8V
TO LINEAR
AMPLIFIER
VOUT +10V
(45V
MAX
)
VCC – 2V
REFERENCE
250kHz
OSCILLATOR
T
TOGGLE
VCC
+
–
C
T
CT
LR
GND
R
FAULT
TO VCC
C
PUMP
TO V
OUT
VPUMP
CP2
PMPB
OSCB
CP1
PMP
OSC
R1
R2
C1
C2
SENSE
R
SENSE
VCC
V
OUT
R
PL
VCC
LINEAR
AMPLIFIER
FAULT=
50mV
H=CLOSE
OVERCURRENT
COMPARATOR
OVERLOAD
COMPARATOR200mV
50mV
IMAX
REF
SD
FAULT
Figure 10. Typical application.
APPLICATION INFORMATION (cont.)
UDG-98194
SAFETY RECOMMENDATIONS
Although the UC3914 is designed to provide system pro-
tection for all fault conditions, all integrated circuits can
ultimately fail short. For this reason, if the UC3914 is in-
tended for use in safety critical applications where UL or
some other safety rating is required, a redundant safety
device such as a fuse should be placed in series with
the device. The UC3914 will prevent the fuse from blow-
ing in virtually all fault conditions, increasing system reli-
ability and reducing maintainence cost, in addition to
providing the hot swap benefits of the device.
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