LTC3586-2 Datasheet, PDF (4/36 Pages) –

LTC3586-2/LTC3586-3
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_BUS = 5V, BAT = 3.8V, V_IN1 = V_IN2 = V_IN3 = V_IN4 = V_OUT3 = 3.8V,
V_OUT4 = 5V, R_PROG = 1k, R_CLPROG = 3.01k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_TRKL
∆V_TRKL
V_RECHRG
t_TERM
t_BADBAT
h_C/10
V_CHRG
I_CHRG
R_{ON_CHG}
T_LIM
Trickle Charge Threshold Voltage
BAT Rising
Trickle Charge Hysteresis Voltage
Recharge Battery Threshold Voltage
Safety Timer Termination
Bad Battery Termination Time
End-of-Charge Indication Current Ratio
Threshold Voltage Relative to V_FLOAT
Timer Starts When BAT = V_FLOAT
BAT < V_TRKL
(Note 6)
CHRG Pin Output Low Voltage
I_CHRG = 5mA
CHRG Pin Leakage Current
V_CHRG = 5V
Battery Charger Power FET
On-Resistance (Between V_OUT and BAT)
Junction Temperature in Constant
Temperature Mode
2.7 2.85 3.0
V
130
mV
–75 –100 –125
mV
3.3
4
5
Hour
0.42 0.5 0.63
Hour
0.088 0.1 0.112 mA/mA
65 100
mV
1
µA
0.18
Ω
110
°C
NTC
V_COLD
V_HOT
V_DIS
Cold Temperature Fault Threshold
Voltage
Hot Temperature Fault Threshold
Voltage
NTC Disable Threshold Voltage
Rising Threshold
Hysteresis
Falling Threshold
Hysteresis
Falling Threshold
Hysteresis
75.0 76.5 78.0 %V_BUS
1.5
%V_BUS
33.4 34.9 36.4 %V_BUS
1.73
%V_BUS
0.7
1.7
2.7
%V_BUS
50
mV
I_NTC
Ideal Diode
NTC Leakage Current
V_NTC = V_BUS = 5V
–50
50
nA
V_FWD
Forward Voltage
R_DROPOUT
Internal Diode On-Resistance, Dropout
I_{MAX_DIODE}
Internal Diode Current Limit
Always On 3.3V Supply
V_BUS = 0V, I_VOUT = 10mA
I_VOUT = 10mA
V_BUS = 0V
2
mV
15
mV
0.18
Ω
1.6
A
V_LDO3V3
Regulated Output Voltage
R_{CL_LDO3V3}
Closed-Loop Output Resistance
R_{OL_LDO3V3}
Dropout Output Resistance
Logic Input (EN1, EN2, EN3, EN4, MODE, ILIM0, ILIM1)
0mA < I_LDO3V3 < 20mA
3.1
3.3
3.5
V
4
Ω
23
Ω
V_IL
V_IH
I_PD
FAULT Output
Logic Low Input Voltage
Logic High Input Voltage
Pull-Down Current
0.4
V
1.2
V
1
µA
V_FAULT
FAULT Pin Output Low Voltage
FAULT Delay
I_FAULT = 5mA
65 100
mV
14
ms
FBx Voltage Threshold
for FAULT (x = 1, 2, 3, 4)
0.736
V
358623f
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