LTC4000_15 Datasheet, PDF (6/40 Pages) Linear Technology – High Voltage High Current Controller for Battery Charging and Power Management

LTC4000
Typical Performance Characteristics
Input Quiescent Current and
Battery Quiescent Current Over
Temperature
1.0
V_IN = V_BAT = 15V
V_CSN = 15.5V
I_IN
0.1
I_BAT
Battery Only Quiescent Current
Over Temperature
100
V_BAT = 60V
10
V_BAT = 15V
1
0.1
V_BAT = 3V
0.01
0
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G01
Battery Thresholds: Rising Recharge,
Instant-On Regulation and Falling Low
Battery As a Percentage of Battery
Float Feedback Over Temperature
100
95
V_RECHRG(RISE)
0.001
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G02
IL and CL Pull-Up Current Over
Temperature
–45.0
90
–47.5
85
V_{OUT(INST_ON)}
80
–50.0
75
70
V_LOBAT
–52.5
65
60
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G04
–55.0
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G05
Current Sense Offset Voltage
Over Temperature
300
V_MAX(IN,CLN) = V_{MAX(CSP, CSN)} = 15V
200
Current Sense Offset Voltage Over
Common Mode Voltage Range
300
200
100
0
–100
V_{OS(CSP, CSN)}
V_{OS(IN, CSN)}
100
0
–100
V_{OS(CSP, CSN)}
V_{OS(IN, CSN)}
–200
–200
–300
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G07
–300
0
10 20 30 40 50 60
V_{MAX(IN, CLN)}/V_{MAX(CSP, CSN)} (V)
4000 G08
Battery Float Voltage Feedback, Output
Voltage Regulation Feedback and VM
Falling Threshold Over Temperature
1.20
1.19
1.18
1.17
V_VM(TH) ^VOFB_REG
1.16
1.15
1.14
V_{BFB_REG}
1.13
1.12
1.11
1.10
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G03
Maximum Programmable Current
Limit Voltage Over Temperature
1.015
1.010
1.005
1.000
0.995
0.990
0.985
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G06
CX Comparator Offset Voltage with
V_IBMON Falling Over Temperature
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G09
4000fb
6
For more information www.linear.com/LTC4000