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LTC4100 数据表(PDF) 9 Page - Linear Technology

部件名 LTC4100
功能描述  Dual Smart Battery System Manager Available in 48-Lead TSSOP Package
PDF  48 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC4100 数据表(HTML) 9 Page - Linear Technology

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LTC1760
9
1760fa
Efficiency vs Charging Current
Load Dump
Load Regulation
TYPICAL PERFORMANCE CHARACTERISTICS
PowerPath Switching 1 and 2
SMBus Accelerator Operation
IOUT (A)
0
0
10
30
40
50
100
70
0.025
0.10
1760 G07
20
80
90
60
0.50
2.5
4.0
TIME (ms)
–4 –2
14
12
10
8
6
4
2
0
1760 G08
4
2
10 12 14 16
0
68
VIN = 20V
VDAC = 12.29V
IDAC = 3000mA
LOAD CURRENT = 1A
TA = 25°C
BAT1
OUTPUT
LOAD
CONNECTED
LOAD
DISCONNECTED
CHARGE CURRENT (mA)
0
4000
1760 G09
1000
2000
3000
12.4
12.3
12.2
12.1
12.0
11.9
11.8
11.7
11.6
VIN = 20V
VDAC = 12.288V
IDAC = 4000mA
TA = 25°C
TIME (μs)
16
15
14
13
12
11
10
9
8
7
6
1960 G10
–50 –40 –30
–10 0
10 20 30 40 50
–20
CLOAD = 20F
ILOAD = 0.8A
TA = 25°C
LOPWR
THRESHOLD
1μs/DIV
1760 G11
5V
0V
RPULLUP = 15k
LTC1760
VCC = 5V
CLD = 200pF
TA = 25°C
PIN FUNCTIONS
Input Power Related
SCN (Pin 4): PowerPath Current Sensing Negative Input.
This pin should be connected directly to the “bottom”
(output side) of the sense resistor, RSC, in series with the
three PowerPath switch pairs, for detecting short-circuit
current events. Also powers the LTC1760 internal circuitry
when all other sources are absent.
SCP (Pin 5): PowerPath Current Sensing Positive Input.
This pin should be connected directly to the “top” (switch
side) of the sense resistor, RSC, in series with the three
PowerPath switch pairs, for detecting short-circuit cur-
rent events.
GDCO (Pin 6): DCIN Output Switch Gate Drive. Together
with GDCI, this pin drives the gate of the P-channel switch
in series with the DCIN input switch.
GDCI (Pin 7): DCIN Input Switch Gate Drive. Together with
GDCO, this pin drives the gate of the P-channel switch
connected to the DCIN input.



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