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LTC4100 датащи(PDF) 6 Page - Linear Technology

номер детали LTC4100
подробное описание детали  Smart Battery Charger Controller
PDF  30 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC4100 датащи(HTML) 6 Page - Linear Technology

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LTC4100
6
4100fb
TYPICAL PERFORMANCE CHARACTERISTICS
Disconnect/Reconnect Battery
(Load Dump)
Battery Leakage Current
vs Battery Voltage
Efficiency at 19V VDCIN
Efficiency at 12.6V with 15V VDCIN
SMBus Accelerator Operation
Low Current Operation
INFET Response Time to
Reverse Current
VOUT vs IOUT
PWM Frequency vs Duty Cycle
TEST PERFORMED ON DEMOBOARD
VIN = 15VDC
CHARGER = ON
ICHARGE = <10mA
Vs OF PFET (5V/DIV)
Id (REVERSE) OF
PFET (5A/DIV)
Vgs OF PFET (2V/DIV)
4100 G01
VCHARGE = 12.6V
INFET = 1/2 Si4925DY
Vgs = 0
Vs = 0V
Id = 0A
1.25μs/DIV
OUTPUT CURRENT (A)
0
0.5 1.0
2.0
3.0
4.0
1.5
2.5
3.5
4.5
4100 G02
DCIN = 20V
VBAT = 12.6V
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
DUTY CYCLE (VOUT/VIN)
0
0.1 0.2
0.4
0.6
0.9
0.8
0.3
0.5
0.7
1.0
4100 G03
PROGRAMMED CURRENT = 10%
DCIN = 15V
DCIN = 20V
DCIN = 24V
350
300
250
200
150
100
50
0
4100 G04
LOAD CURRENT = 1A, 2A, 3A
DCIN = 20V
VFLOAT = 12.6V
VFLOAT
1V/(DIV)
LOAD
STATE
DISCONNECT
RECONNECT
1A STEP
3A STEP
3A STEP
1A STEP
BATTERY VOLTAGE (V)
0
5
10
15
20
25
30
4100 G05
40
35
30
25
20
15
10
5
0
VDCIN = 0V
CHARGING CURRENT (A)
1.00
0.50
1.50
2.00
2.50
3.00
4100 G06
16.8V
12.6V
100
95
90
85
80
75
CHARGING CURRENT (A)
1.00
0.50
1.50
2.00
2.50
3.00
4100 G07
100
95
90
85
80
75
1μs/DIV
4100 G08
5V
0V
RPULLUP = 15k
LTC4100
VDD = 5V
CBUS = 200pF
TA = 25°C
PROGRAMMED CURRENT (A)
0
0.5
0.3
0.4
0.2
0.1
0
–0.1
0.1
4100 G09
0.2
0.4
0.3
VDD = 5V
TEMP = 27°C
DCIN = 15V
LOW
CURRENT
MODE
PROGRAMMED
CURRENT
NO LOW
CURRENT
MODE



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