LTC4060
The ● indicates specifications which apply over the full operating
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VBAT = 2.8V, GND = 0V unless otherwise specified. All
currents into the device pins are positive and all currents out of the device pins are negative. All voltages are referenced to GND
unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
SEL0 = 0, SEL1 = V , V Increasing
MIN
6.67
6.57
8.28
8.18
TYP
6.81
6.71
8.47
8.37
100
MAX
6.95
6.85
8.65
8.55
UNITS
V
V
V
V
V
Undervoltage Lockout Exit Threshold
Undervoltage Lockout Entry Threshold
Undervoltage Lockout Exit Threshold
Undervoltage Lockout Entry Threshold
Undervoltage Lockout Hysteresis
●
●
●
●
V
V
UVI2
UVD2
UVI3
UVD3
UVH
CC CC
SEL0 = 0, SEL1 = V , V Decreasing
CC CC
SEL0 = V , SEL1 = V , V Increasing
V
CC
CC CC
SEL0 = V , SEL1 = V , V Decreasing
V
CC
CC CC
For All SEL0, SEL1 Options
mV
Charging Performance
I
I
I
I
I
High Fast Charge Current (Notes 7, 10)
Low Fast Charge Current (Note 7)
High Precharge Current (Note 7)
R
R
R
R
= 698Ω, 5V < V < 10V
●
●
1.9
0.35
320
40
2
2.1
0.45
480
A
A
FCH
FCL
PCH
PCL
BRD
PROG
PROG
PROG
PROG
CC
= 3480Ω, 4.5V < V < 10V
0.4
CC
= 698Ω, 4.5V < V < 10V
400
80
mA
mA
µA
V
CC
Low Precharge Current (Note 7)
= 3480Ω, 4.5V < V < 10V
120
CC
Battery Removal Detection Bias Current
Battery Removal Threshold Voltage (Note 8)
4.5V < V < 10V, V
= V – 0.4V
●
●
–450
1.95
–300
2.05
50
–160
2.15
CC
BAT
CC
V
V
V
V
Increasing, 4.5V < V < 10V
BR
CELL
CELL
CC
Battery Removal Threshold Hysteresis Voltage
(Note 8)
Decreasing
mV
BRH
V
V
V
Battery Overvoltage Threshold (Note 8)
V
V
V
Increasing, 4.5V < V < 10V
●
1.85
840
1.95
50
2.05
960
V
mV
mV
BOV
BOVH
FCQ
CELL
CELL
CELL
CC
Battery Overvoltage Threshold Hysteresis (Note 8)
Decreasing
Fast Charge Qualification Threshold Voltage
(Note 8)
Increasing, 4.5V < V < 10V
900
CC
V
Fast Charge Qualification Threshold Hysteresis
Voltage (Note 8)
V
V
Decreasing
50
mV
FCQH
CELL
V
V
Initial Delay Hold-Off Threshold Voltage (Note 8)
Increasing, 4.5V < V < 10V
1.24
1.3
50
1.36
V
IDT
CELL
CELL
CC
Initial Delay Hold-Off Threshold Hysteresis Voltage V
(Note 8)
Decreasing
mV
IDTH
V
V
V
V
V
V
V
–∆V Termination (Note 8)
CHEM = V (NiCd)
CHEM = 0V (NiMH)
●
●
11
5
16
8
21
14
mV
mV
MDV
PROG
ART
CC
Program Pin Voltage
4.5V < V < 10V, R
= 635Ω
●
●
●
1.45
1.065
1.235
1.5
1.1
1.3
50
1.54
1.135
1.365
V
CC
PROG
ARCT
ARCT
and 3480Ω
Automatic Recharge Programmed Threshold
Voltage Accuracy (Note 8)
V
Decreasing, V
= 1.1V,
V
CELL
4.5V < V < 10V
CC
Automatic Recharge Default Threshold Voltage
Accuracy (Note 8)
V
Decreasing, V
= V ,
CC
V
ARDT
ARH
CELL
4.5V < V < 10V
CC
Automatic Recharge Threshold Voltage Hysteresis
(Note 8)
V
Increasing
mV
V
CELL
Automatic Recharge Pin Default Enable Threshold
Voltage
V
V
CC
– 0.2
ARDEF
ARDIS
ARL
CC
– 0.8
Automatic Recharge Pin Disable Threshold
Voltage
250
650
mV
I
Automatic Recharge Pin Pull-Down Current
NTC Pin Cold Threshold Voltage
V
V
= 1.3V
●
●
0.15
1.5
µA
ARCT
V
Decreasing, 4.5V < V < 10V
0.83 •
0.86 •
0.89 •
V
CLD
NTC
CC
V
V
V
CC
CC
CC
V
V
NTC Pin Cold Threshold Hysteresis Voltage
V
V
Increasing
150
mV
V
CLDH
HTI
NTC
NTC
NTC Pin Hot Charge Initiation Threshold Voltage
Decreasing, 4.5V < V < 10V
●
0.47 •
0.5 •
0.53 •
CC
V
V
V
CC
CC
CC
4060f
3
Linear Systems [ Linear Systems ]
