Datasheet

LTC4099
9
4099fd
IRQ PIN VOLTAGE (V)
0
IRQ PIN CURRENT (mA)
60
80
100
4
4099 G28
40
20
0
1
2
3
5
OVP Disconnect Waveform
IRQ Pin Current vs Voltage
(Pull-Down State)
OVGATE vs OVSENS
Rising Overvoltage Threshold
vs Temperature
TEMPERATURE (°C)
–40
OVP THRESHOLD (V)
6.270
6.275
6.280
60
4099 G25
6.265
6.260
6.255
–15
10
35
85
INPUT VOLTAGE (V)
0
0
OVGATE (V)
2
4
6
8
10
12
2 4 6 8
4099 G27
OVSENS CONNECTED
TO INPUT THROUGH
6.2k RESISTOR
OVSENS Quiescent Current
vs Temperature
TEMPERATURE (°C)
–40
QUIESCENT CURRENT (µA)
33
35
37
60
4099 G26
31
29
27
–15
10
35
85
V
OVSENS
= 5V
Typical perForMance characTerisTics
T
A
= 25°C, V
BUS
= 5V, BAT = 3.8V, R
PROG
= 1.02k,
R
CLPROG
= 3.01k, unless otherwise noted.
V
BUS
5V/DIV
OVGATE
5V/DIV
500µs/DIV
4099 G30
OVP INPUT
VOLTAGE
5V TO
10V STEP
5V/DIV
Battery Safety Conditioner Discharge
Current vs Battery Voltage
OVP Connection Waveform
Input Current vs Temperature
High Voltage Input Charging
Efficiency vs Battery Voltage
TEMPERATURE (°C)
–40
0
INPUT CURRENT (mA)
200
400
–15 10 6035
100
300
500
85
4099 G31
500mA USB SETTING
100mA USB SETTING
BATTERY CHARGER
SET FOR 1200mA
BATTERY VOLTAGE (V)
3.6
BATTERY CURRENT (mA)
60
90
120
30
3.8 4.0
3.7
3.9 4.1 4.2
0
150
4099 G32
BATTERY CONDITIONER ENABLED
V
NTC
/ V
NTCBIAS
< 0.219
V
BUS
= 0V
BATTERY VOLTAGE (V)
3.0
EFFICIENCY (%)
80
60
40
3.6
3.3
3.9
4.2
20
0
100
4099 G33
CONVENTIONAL 5V BUCK
WITHOUT Bat-Track
USING THE LT3653
WITH Bat-Track
BATTERY CHARGE SET FOR 700mA
INPUT VOLTAGE = 13.5V
OVGATE
250µs/DIV
4099 G29
0V
2V/DIV
V
BUS