Datasheet

LTC4089/LTC4089-5
5
40895fc
TIME (MIN)
0
V
BAT
, V
OUT
, V
CHRGB
(V)
I
BAT
(mA)
2
3
200
40895 G03
1
0
50
100
150
5
4
600
900
300
0
1500
1200
V
BAT
V
OUT
V
CHRGB
I
BAT
1250mAh
CELL
HVIN = 12V
R
PROG
= 50k
C/10
TERMINATION
I
BAT
(mA)
0
4.00
V
FLOAT
(V)
4.05
4.10
4.15
4.20
4.25
4.30
200 400 600 800
40895 G01
1000
R
PROG
= 34k
TEMPERATURE (°C)
–50
V
FLOAT
(V)
4.195
4.200
4.205
25
75
40895 G02
4.190
4.185
4.180
–25 0 50
4.210
4.215
4.220
100
V
IN
= 5V
I
BAT
= 2mA
V
BAT
(V)
0
0
I
BAT
(mA)
100
300
400
500
1
2
2.5 4.5
40895 G04
200
0.5 1.5
3
3.5
4
600
V
IN
= 5V
V
OUT
= NO LOAD
R
PROG
= 100k
R
CLPROG
= 2k
HPWR = 5V
HPWR = 0V
TEMPERATURE (°C)
–50
I
BAT
(mA)
400
500
600
25 75
40895 G05
300
200
–25 0
50 100 125
100
0
V
IN
= 5V
V
BAT
= 3.5V
Q
JA
= 50°C/W
V
FWD
(mV)
0
0
I
OUT
(mA)
100
300
400
500
1000
700
50
100
40895 G06
200
800
900
600
150
200
V
BAT
= 3.7V
V
IN
= 0V
–50°C
0°C
50°C
100°C
0
3000
4000
5000
80
4085 G17
2000
1000
2500
3500
4500
1500
500
0
20
40
60
100
V
FWD
(mV)
I
OUT
(mA)
V
BAT
= 3.7V
V
IN
= 0V
Si2333 PFET
–50°C
0°C
50°C
100°C
I
OUT
(A)
0
EFFICIENCY (%)
80
90
100
0.8
40895 G08
70
60
75
85
95
65
55
50
0.2
0.4
0.6
1.0
FIGURE 10 SCHEMATIC
V
BAT
= 4.21V (I
BAT
= 0)
HVIN = 8V
HVIN = 12V
HVIN = 36V
HVIN = 24V
I
OUT
(A)
0
EFFICIENCY (%)
80
90
100
0.8
40895 G09
70
60
75
85
95
65
55
50
0.2
0.4
0.6
1.0
FIGURE 10 SCHEMATIC
V
BAT
= 4.21V (I
BAT
= 0)
HVIN = 8V
HVIN = 12V
HVIN = 36V
HVIN = 24V
TYPICAL PERFORMANCE CHARACTERISTICS
V
FLOAT
Load Regulation
Battery Regulation (Float)
Voltage vs Temperature
Battery Current and Voltage vs
Time (LTC4089)
Charging from USB, I
BAT
vs V
BAT
Charge Current vs Temperature
(Thermal Regulation)
Ideal Diode Current vs Forward
Voltage and Temperature (No
External Device)
Ideal Diode Current vs Forward
Voltage and Temperature with
External Device
LTC4089 High Voltage Regulator
Effi ciency vs Output Load
LTC4089-5 High Voltage
Regulator Effi ciency vs Output
Load
T
A
= 25°C, unless otherwise specifi ed.