Linear Technology LTM8061-8.2 Demo Board, 32v, 2A µModule Battery Charger DC1645A-C DC1645A-C Data Sheet
Product codes
DC1645A-C
LTM8061
3
8061fa
elecTrical characTerisTics
The
l
denotes the specifications which apply over the full internal
operating temperature range, otherwise specifications are at T
A
= 25°C. RUN = 2V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
IN
Operating Voltage
32
V
V
IN
Start Voltage
LTM8061-4.1/LTM8061-4.2
LTM8061-8.2/LTM8061-8.4
l
l
7.5
11.5
V
V
V
IN
OVLO Threshold
V
IN
Rising
32
35
40
V
V
IN
OVLO Hysteresis
1
V
V
IN
UVLO Threshold
LTM8061-4.1/LTM8061-4.2
LTM8061-8.2/LTM8061-8.4, V
IN
Rising
4.6
8.7
V
V
V
IN
UVLO Hysteresis
0.3
V
V
INA
to V
INC
/CLP Diode Forward Voltage Drop
V
INA
Current = 2A
0.55
V
BAT Float Voltage
LTM8061-4.1
LTM8061-4.2
LTM8061-8.2
LTM8061-8.4
l
l
l
l
4.08
4.06
4.18
4.16
8.16
8.12
8.36
8.32
4.1
4.2
8.2
8.4
4.12
4.14
4.22
4.24
8.24
8.28
8.44
8.48
V
V
V
V
V
V
V
V
Maximum BAT Charge Current
(Note 3)
1.70
2.0
A
BAT Recharge Threshold Voltage
LTM8061-4.1/LTM8061-4.2,
Relative to BAT Float Voltage
LTM8061-8.2/LTM8061-8.4,
Relative to BAT Float Voltage
–100
–200
mV
mV
BAT Precondition Threshold Voltage
LTM8061-4.1/LTM8061-4.2
LTM8061-8.2
LTM8061-8.4
2.9
5.65
5.80
V
V
V
BAT Precondition Threshold Hysteresis Voltage
90
mV
Input Supply Current
Standby Mode, Not Switching
RUN = 0.4V
85
15
µA
µA
Minimum BIAS Voltage for Proper Operation
2.9
V
V
INC
/CLP Threshold Voltage
50
mV
V
INC
/CLP Input Bias Current
200
nA
NTC Range Limit Voltage (High)
V
NTC
Rising
1.25
1.36
1.45
V
NTC Range Limit Voltage (Low)
V
NTC
Falling
0.265
0.29
0.315
V
NTC Threshold Hysteresis
For Both High and Low Range Limits
20
%
NTC Disable Impedance
(Note 4)
250
500
kΩ
NTC Bias Current
V
NTC
= 0.8V
47.5
50
52.5
µA
RNG/SS Bias Current
45
50
55
µA
Current Charge Programming: V
RNG/SS
/BAT Current
0.42
0.50
0.58
V/A
RUN Threshold Voltage
V
RUN
Rising
1.15
1.20
1.25
V
RUN Hysteresis Voltage
120
mV
RUN Input Bias Current
1
µA
CHRG, FAULT Output Low Voltage
10mA Load on CHRG, FAULT Pins
0.4
V
TMR Charge/Discharge Current
25
µA
TMR Disable Threshold Voltage
0.1
0.25
V
C/10 Termination Current
RNG/SS Open
200
mA
Operating Frequency
0.9
1
1.1
MHz