LTC3586_15 Datasheet, PDF (3/36 Pages) Linear Technology – High Efficiency USB Power Manager with Boost, Buck-Boost and Dual Bucks

LTC3586/LTC3586-1
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
h_CLPROG (Note 4) Ratio of Measured V_BUS Current to
CLPROG Program Current
1x Mode
5x Mode
10x Mode
Suspend Mode
224
mA/mA
1133
mA/mA
2140
mA/mA
9.3
mA/mA
I_{OUT(POWERPATH)}
V_OUT Current Available Before Loading
BAT
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Suspend Mode
135
mA
672
mA
1251
mA
0.32
mA
V_CLPROG
CLPROG Servo Voltage in Current Limit 1x, 5x, 10x Modes
Suspend Mode
1.188
V
100
mV
V_{UVLO_VBUS}
V_BUS Undervoltage Lockout
Rising Threshold
Falling Threshold
4.30 4.35
V
3.95 4.00
V
V_{UVLO_VBUS-BAT} V_BUS to BAT Differential Undervoltage Rising Threshold
Lockout
Falling Threshold
200
mV
50
mV
V_OUT
V_OUT Voltage
f_OSC
Switching Frequency
R_{PMOS_POWERPATH} PMOS On-Resistance
R_{NMOS_POWERPATH} NMOS On-Resistance
I_{PEAK_POWERPATH} Peak Switch Current Limit (Note 5)
1x, 5x, 10x Modes, 0V < BAT < 4.2V,
I_VOUT = 0mA, Battery Charger Off
USB Suspend Mode, I_VOUT = 250µA
1x, 5x Modes
10x Mode
3.5 BAT + 0.3 4.7
V
4.5
4.6
4.7
V
1.8
2.25
2.7
MHz
0.18
Ω
0.30
Ω
2
A
3
A
Battery Charger
V_FLOAT
BAT Regulated Output Voltage
LTC3586
LTC3586
LTC3586-1
LTC3586-1
4.179 4.200 4.221
V
l 4.165 4.200 4.235
V
4.079 4.100 4.121
V
l 4.065 4.100 4.135
V
I_CHG
I_BAT
V_PROG
V_{PROG_TRKL}
Constant Current Mode Charge Current
Battery Drain Current
PROG Pin Servo Voltage
R_PROG = 1k
R_PROG = 5k
V_BUS > V_UVLO, I_VOUT = 0µA
V_BUS = 0V, I_VOUT = 0µA (Ideal Diode Mode)
PROG Pin Servo Voltage in Trickle
Charge
BAT < V_TRKL
980 1022 1065
mA
185
204
223
mA
2
3.5
5
µA
29
41
µA
1.000
V
0.100
V
V_C/10
h_PROG
I_TRKL
V_TRKL
∆V_TRKL
V_RECHRG
t_TERM
t_BADBAT
h_C/10
V_CHRG
I_CHRG
C/10 Threshold Voltage at PROG
Ratio of I_BAT to PROG Pin Current
Trickle Charge Current
Trickle Charge Threshold Voltage
BAT < V_TRKL
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
CHRG Pin Leakage Current
I_CHRG = 5mA
V_CHRG = 5V
100
mV
1022
mA/mA
100
mA
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
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