Datasheet

LTC3677-3
5
36773f
Power Manager. The l denotes the specifications which apply over the
full operating junction temperature range, otherwise specifications are at T
J
= 25°C. V
BUS
= 5V, V
BAT
= 3.8V, I
LIM0
= I
LIM1
= 5V,
WALL = 0V, V
INLDO2
= V
INLOD1
= V
IN12
= V
IN3
= V
OUT
, R
PROG
= 2k, R
CLPROG
= 2.1k, unless otherwise noted.
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
NTC, Battery Discharge Protection
V
COLD
Cold Temperature Fault Threshold
Voltage
Rising NTC Voltage
Hysteresis
75 76
1.3
77 %V
NTCBIAS
%V
NTCBIAS
V
HOT
Hot Temperature Fault Threshold
Voltage
Falling NTC Voltage
Hysteresis
34 35
1.3
36 %V
NTCBIAS
%V
NTCBIAS
V
TOO
_
HOT
NTC Discharge Threshold Voltage Falling NTC Voltage
Hysteresis
24.5 25.5
50
26.5 %V
NTCBIAS
mV
I
NTC
NTC Leakage Current V
NTC
= V
BUS
= 5V –50 50 nA
I
BAT2HOT
BAT Discharge Current V
BAT
= 4.1V, NTC < V
TOO_HOT
170 mA
V
BAT2HOT
BAT Discharge Threshold I
BAT
< 0.1mA, NTC < V
TOO_HOT
3.9 V
Ideal Diode
V
FWD
Forward Voltage Detection I
OUT
= 10mA 5 15 25 mV
R
DROPOUT
Diode On-Resistance, Dropout I
OUT
= 200mA 200 mΩ
I
MAX
Diode Current Limit (Note 7) 3.6 A
Overvoltage Protection
V
OVCUTOFF
Overvoltage Protection Threshold Rising Threshold, R
OVSENS
= 6.2k 6.10 6.35 6.70 V
V
OVGATE
OVGATE Output Voltage Input Below V
OVCUTOFF
Input Above V
OVCUTOFF
1.88 • V
OVSENS
12
0
V
V
I
OVSENSQ
OVSENS Quiescent Current V
OVSENS
= 5V 40 µA
t
RISE
OVGATE Time to Reach Regulation C
OVGATE
= 1nF 2.5 ms
Wall Adapter and High Voltage Buck Output Control
V
ACPR
ACPR Pin Output High Voltage
ACPR Pin Output Low Voltage
I
ACPR
= 0.1mA
I
ACPR
= 1mA
V
OUT
– 0.3 V
OUT
0 0.3
V
V
V
W
Absolute Wall Input Threshold Voltage V
WALL
Rising
V
WALL
Falling 3.1
4.3
3.2
4.45 V
V
∆V
W
Differential Wall Input Threshold
Voltage
V
WALL
– V
BAT
Falling
V
WALL
– V
BAT
Rising
0 25
75 100
mV
mV
I
QWALL
Wall Operating Quiescent Current I
WALL
+ I
VOUT
, I
BAT
= 0mA,
WALL = V
OUT
= 5V
440 µA
Logic (I
LIM0
, I
LIM1
and CHRG)
V
IL
Input Low Voltage I
LIM0
, I
LIM1
0.4 V
V
IH
Input High Voltage I
LIM0
, I
LIM1
1.2 V
I
PD
Static Pull-Down Current I
LIM0
, I
LIM1
; V
PIN
= 1V 2 µA
V
CHRG
CHRG Pin Output Low Voltage I
CHRG
= 10mA 0.15 0.4 V
I
CHRG
CHRG Pin Input Current V
BAT
= 4.5V, V
CHRG
= 5V 0 1 µA