LTC4101EG#PBF Linear Technology, LTC4101EG#PBF Datasheet - Page 19

• Manufacturer Part Number: LTC4101EG#PBF
• Description: IC CNTRLR BATT CHRG 24-SSOP
• Manufacturer: Linear Technology

Specifications of LTC4101EG#PBF

• Function: Charge Management
• Battery Type: Smart Batteries
• Voltage - Supply: 6 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

OPERATION
The I
The value of an external resistor connected from this pin
to GND determines one of four current limits that are used
for maximum charging current value. These limits provide
a measure of safety with a hardware restriction on charging
current which cannot be overridden by software.
Table 6. I
EXTERNAL
RESISTOR
(R
Short to GND
10k ±1%
33k ±1%
Open (>250k,
or Short to V
ILIM
)
LIM
LIM
Decoder Block
DD
Trip Points and Ranges
)
0.17V
0.42V
0.66V
V
I
ILIM
LIM
< 0.34V
< 0.59V
VDD
VDD
VDD
VOLTAGE
< 0.09V
< V
< V
< V
VDD
ILIM
ILIM
ILIM
DD
CURRENT RANGE GRANULARITY
0 < I < 1023mA
0 < I < 2046mA
0 < I < 3068mA
0 < I < 4092mA
CONTROLLED
CHARGING
V
LIM
R
Figure 5. Simplifi ed V
VLIM
14
33k
12.5k
12.5k
25k
25k
25k
V
1mA
2mA
4mA
4mA
DD
LIM
Circuit Concept (I
+
+
–
–
+
–
+
–
The V
The value of an external resistor connected from this pin
to GND determines one of fi ve voltage limits that are ap-
plied to the charger output value. These limits provide a
measure of safety with a hardware restriction on charging
voltage which cannot be overridden by software.
Table 7. V
EXTERNAL
RESISTOR
(R
Short to
GND
10k ±1%
33k ±1%
100k ±1%
Open or
Tied to V
ILIM
)
AC_PRESENT
LIM
DD
ENCODER
LIM
Decoder Block
LIM
Trip Points and Ranges (See Figure 5)
V
0.42V
0.17V
0.66V
0.91V
VLIM
I
is Similar)
LIM
< 0.34V
< 0.59V
< 0.84V
4
VCCP
VDD
VDD
VDD
< 0.09V
VOLTAGE
V
LIM
< V
< V
< V
< V
VDD
VDD
VDD
4101 F05
[3:0]
VLIM
VLIM
VLIM
VCCP
VLIM
CURRENT RANGE
2900mV < V
2900mV < V
2900mV < V
2900mV < V
2900mV < V
CONTROLLED
CHARGING
< 4240mV
< 4304mV
< 4432mV
< 4512mV
< 5504mV
OUT
OUT
OUT
OUT
OUT
LTC4101
GRANULARITY
16mV
16mV
16mV
16mV
16mV
19
4101fa