LTC3567 Datasheet, PDF (3/28 Pages) Linear Technology – High Effi ciency USB Power Manager Plus 1A Buck-Boost Converter with I2C Control

LTC3567
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, V_IN1 = V_OUT1 = 3.8V, V_BAT = 3.8V, DV_CC = 3.3V, R_PROG = 1k,
R_CLPROG = 3.01k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
I_{OUT (POWERPATH)}
V_CLPROG
V_OUT Current Available Before
Loading BAT
CLPROG Servo Voltage in Current
Limit
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Suspend Mode
1x, 5x, 10x Modes
Suspend Mode
135
mA
672
mA
1251
mA
0.32
mA
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-VBAT}
V_BUS to BAT Differential
Undervoltage Lockout
Rising Threshold
Falling Threshold
200
mV
50
mV
V_OUT
V_OUT Voltage
1x, 5x, 10x Modes,
0V < BAT < 4.2V, I_OUT = 0mA, Battery
Charger Off
3.4
BAT+0.3
4.7
V
f_OSC
R_{PMOS_POWERPATH}
R_{NMOS_POWERPATH}
I_{PEAK_POWERPATH}
Switching Frequency
PMOS On-Resistance
NMOS On-Resistance
Peak Switch Current Limit
Battery Charger
USB Suspend Mode, I_OUT = 250μA
4.5
l
1.8
1x, 5x Modes
10x Mode
4.6
4.7
V
2.25
2.7
MHz
0.18
Ω
0.30
Ω
2
A
3
A
V_FLOAT
I_CHG
I_BAT
BAT Regulated Output Voltage
Constant Current Mode Charge
Current
Battery Drain Current
R_PROG = 5k
V_BUS > V_UVLO, Battery Charger Off,
I_OUT = 0μA
V_BUS = 0V, I_OUT = 0μA (Ideal Diode
Mode)
4.179
l 4.165
980
185
2
4.200
4.221
V
4.200
4.235
V
1022
1065
mA
204
223
mA
3.5
5
μA
27
38
μA
V_PROG
V_{PROG_TRIKL}
PROG Pin Servo Voltage
PROG Pin Servo Voltage in Trickle
Charge
V_BAT < V_TRIKL
1.000
V
0.100
V
V_C/10
h_PROG
I_TRKL
V_TRKL
ΔV_TRKL
V_RECHRG
C/10 Threshold Voltage at PROG
Ratio of I_BAT to PROG Pin Current
Trickle Charge Current
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
Recharge Battery Threshold
Voltage
BAT < V_TRKL
BAT Rising
Threshold Voltage Relative to V_FLOAT
100
mV
1022
mA/mA
100
mA
2.7
2.85
3.0
V
135
mV
–75
–100
–125
mV
t_TERM
t_BADBAT
h_C/10
V_CHRG
I_CHRG
Safety Timer Termination
Bad Battery Termination Time
End of Charge Indication Current
Ratio
CHRG Pin Output Low Voltage
CHRG Pin Leakage Current
Timer Starts When BAT = V_FLOAT
BAT < V_TRKL
(Note 5)
I_CHRG = 5mA
V_CHRG = 5V
3.3
0.42
0.088
4
5
Hour
0.5
0.63
Hour
0.1
0.112 mA/mA
65
100
mV
1
μA
3567f
3