Specifications

LTC4056-4.2
2
405642f
ORDER PART
NUMBER
TS8 PART
MARKING
T
JMAX
= 125°C, θ
JA
= 120°C/W TO 200°C/W
DEPENDING ON PC BOARD LAYOUT
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTG5
LTC4056ETS8-4.2
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V.
Input Supply Voltage (V
CC
) ........................–0.3V to 10V
BAT, CHRG ................................................–0.3V to 10V
DRIVE, PROG, TIMER/SHDN ....... –0.3V to (V
CC
+ 0.3V)
Output Current (I
SENSE
) ...................................... 900mA
Short-Circuit Duration (BAT, I
SENSE
) ............Continuous
Junction Temperature........................................... 125°C
Operating Ambient Temperature Range
(Note 2) .............................................. –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
1
2
3
4
V
CC
I
SENSE
DRIVE
GND
8
7
6
5
CHRG
BAT
PROG
TOP VIEW
TS8 PACKAGE
8-LEAD PLASTIC SOT-23
TIMER/
SHDN
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply
V
CC
Input Supply Voltage (Note 3) ● 4.5 6.5 V
I
CC
Quiescent V
CC
Supply Current V
BAT
= 4.5V (Forces I
DRIVE
= 0)
I
PROG
= 200µA (R
PROG
= 5k) ● 400 600 µA
I
SHDN
V
CC
Supply Current in Manual Shutdown V
TIMER/SHDN
= 0V 40 60 µA
I
BMS
Battery Drain Current in V
TIMER/SHDN
= 0V ● –1 0 1 µA
Manual Shutdown (Note 4)
I
BSL
Battery Drain Current in V
CC
= 0V ● –1 0 1 µA
Sleep Mode (Note 5)
V
UVLOI
Undervoltage Rising Threshold V
CC
Increasing ● 4.325 4.40 4.475 V
V
UVLOD
Undervoltage Falling Threshold V
CC
Decreasing ● 4.275 4.35 4.425 V
V
UVHYS
Undervoltage Hysteresis V
UVLOI
-V
UVLOD
50 mV
V
UVCL
Undervoltage Charge Current Limit Threshold 4.575 V
V
UVCL
-V
UVLOI
UV Charge Current to UVLO Threshold Margin ● 90 170 250 mV
Charging Performance
V
FLOAT
Output Float Voltage in I
BAT
= 10mA 4.175 4.200 4.225 V
Constant Voltage Mode I
BAT
= 10mA, 4.75V ≤ V
CC
≤ 6.5V ● 4.158 4.200 4.242 V
I
BAT
Output Full-Scale Current in R
PROG
= 5k, 4.75V ≤ V
CC
≤ 6.5V, 137 183 228 mA
Constant Current Mode PNP Beta > 50, 0°C ≤ T
A
≤ 85°C
R
PROG
= 1.43k, 4.75V ≤ V
CC
≤ 6.5V, 590 640 690 mA
PNP Beta > 50, 0°C ≤ T
A
≤ 85°C
I
DSINK
Drive Output Current V
DRIVE
= 3V ● 30 mA
I
TRIKL
Trickle Charge Current V
BAT
= 2V, R
PROG
= 5k 5 7 10 mA
V
BAT
= 2V, R
PROG
= 1.43k 12 20 28 mA
V
TRIKL
Trickle Charge Threshold Voltage V
BAT
Falling ● 2.73 2.80 2.87 V
∆V
TRIKL
Trickle Charge Hysteresis Voltage 45 70 95 mV
V
PROG1
PROG Pin Voltage R
PROG
= 5k (I
PROG
= 200µA) ● 0.98 1 1.02 V
V
PROG2
PROG Pin Voltage R
PROG
= 1.43k (I
PROG
= 700µA) ● 0.98 1 1.02 V