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LTC4261IGN 数据表(PDF) 12 Page - Linear Technology

部件名 LTC4261IGN
功能描述  Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring
PDF  32 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC4261IGN 数据表(HTML) 12 Page - Linear Technology

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LTC4261/LTC4261-2
12
42612fb
The LTC4261/LTC4261-2 are ideally suited for –48V
distributed power systems and AdvancedTCA systems.
A basic 200W application circuit using the LTC4261 is
shown in Figure 1. A more complete application circuit
with AdvancedTCA connections is shown in Figure 2.
Input Power Supply
Power for the LTC4261/LTC4261-2 is derived from the
–48V RTN through an external current limiting resistor
(RIN) to the VIN pin. An internal shunt regulator clamps
+
FLTIN
PGI
SCL
SDAI
SDAO
ALERT
PG
ADIN
8
9
10
11
19
20
26
2
25
24
22
1
6
5
4
3
27 PWRGD1
23
UVL
UVH
ADIN2
OV
SS
TMR
EN
ON
ADR1
ADRO
RAMP
DRAIN
GATE
LTC4261CGN
VIN
INTVCC
VEE
SENSE
RD
1M
RIN
4
× 1k IN SERIES
1/4W EACH
R3
453k
1%
–48V RTN
–48V INPUT
UV = 38.5V
UV RELEASE
AT 43V
OV RELEASE
AT 71V
OV = 72.3V
R2
16.9k
1%
R1
11.8k
1%
CR
10nF
100V
5%
CF
33nF
CTMR
47nF
CSS
220nF
CVCC
0.1
µF
CIN
1
µF
CUV
100nF
CG 47nF
RS
0.008
Ω
1%
RG
10
Ω
Q1
IRF1310NS
R11
402k 1%
R10
10k 1%
VEE
RF
1k
13
14
15
16
18
CL
330
µF
100V
21
7
MODULE2
ON
42612 F01
VIN
+
VIN
–
MODULE1
ON
VIN
+
VIN
–
VOUT
PGIO 28 PWRGD2
Figure 1. –48V/200W Hot Swap Controller Using LTC4261 with Current,
Input Voltage and VDS Monitoring (5.6A Current Limit, 0.66A Inrush)
Figure 2a. 200W AdvancedTCA Hot Swap Controller with Input/Output Monitoring
and Power Good Watchdog Using LTC4261 in I2C Mode (Part One)
8
9
10
11
19
20
26
2
25
24
RD
1M
RH
604
Ω
1%
R3
412k
1%
UV TURN OFF = 34.2V
UV RELEASE = 37.5V
OV TURN OFF = 74.8V
OV RELEASE = 73.2V
R2
19.1k
1%
R14
100k
R11
100k
R10
100k
RTN A
RTN B
ENABLE A
ENABLE B
–48V A
–48V B
R13
10k
R12
10k
MBRM5100
10A
10A
R15
100k
Q10
2N5401
R1
10.5k
1%
R16
100k
CR
10nF
100V
5%
CF
33nF
CTMR
330nF
CSS
330nF
CUV
100nF
1N4148
×2
CG 47nF
RS
0.008
Ω
5%
RG
10
Ω
Q1
IRF1310NS
VEE
RF
1k
13
14
15
16
18
42612 F02a
CEN
1
µF
HZS5C1
MBRM5100
Q9
2N5401
7A
LTC4354
PLUG-IN
CARD
7A
BACKPLANE
A
B
UVL
UVH
ADIN2
OV
SS
TMR
EN
ON
ADR1
ADR0
RAMP
DRAIN
GATE
LTC4261CGN
VEE
SENSE
APPLICATIONS INFORMATION



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