LTC4059_15 Datasheet, PDF (2/12 Pages) Linear Technology – 900mA Linear Li-Ion Battery Chargers with Thermal Regulation in 2 2 DFN

LTC4059/LTC4059A
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (V_CC) ...................... –0.3V to 10V
BAT, PROG, EN, Li CC, ACPR ................... –0.3V to 10V
BAT Short-Circuit Duration ........................... Continuous
BAT Pin Current ............................................... 1000mA
PROG Pin Current ............................................. 1000µA
Junction Temperature .......................................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
GND 1
6 EN
Li CC/ACPR* 2
7
5 PROG
BAT 3
4 V_CC
ORDER PART
NUMBER
LTC4059EDC
LTC4059AEDC
DC6 PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 60°C/W TO 85°C/W (NOTE 3)
*Li CC PIN 2 ON LTC4059EDC,
ACPR PIN 2 ON LTC4059AEDC
EXPOSED PAD (PIN 7) IS GND
MUST BE SOLDERED TO PCB
DC6 PART
MARKING
LAFU
LBJH
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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 unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
V_CC
I_CC
I_CCMS
I_CCUV
V_CC Supply Voltage
Quiescent V_CC Supply Current
V_CC Supply Current in Shutdown
V_CC Supply Current in Undervoltage
Lockout
V_BAT = 4.5V (Forces I_BAT and I_PROG = 0)
V_EN = V_CC
V_CC < V_BAT; V_CC = 3.5V, V_BAT = 4V
● 3.75
8
●
25
60
●
10
25
●
4
10
V_FLOAT V_BAT Regulated Output Voltage
I_BAT
BAT Pin Current
I_BMS Battery Drain Current in Shutdown
I_BUV
Battery Drain Current in Undervoltage
Lockout
I_BAT = 2mA
4.5V < V_CC < 8V, I_BAT = 2mA
R_PROG = 2.43k, Current Mode, V_BAT = 3.8V
R_PROG = 12.1k, Current Mode, V_BAT = 3.8V
V_EN = V_CC, V_CC > V_BAT
V_CC < V_BAT, V_BAT = 4V
4.175 4.2 4.225
● 4.158 4.2 4.242
● 475
500
525
● 94
100 106
●
0
±1
●0
1
4
V_UV
V_PROG
V_CC – V_BAT Undervoltage Lockout
Threshold
PROG Pin Voltage
V_MS
Manual Shutdown Threshold
V_MSHYS Manual Shutdown Hysteresis
R_EN
EN Pin Input Resistance
V_{Li CC} Voltage Mode Disable Threshold
V_{Li CCHYS} Voltage Mode Disable Hysteresis
V_ACPR ACPR Pin Output Low Voltage
t_LIM
Junction Temperature In Constant
Temperature Mode
V_CC from Low to High, V_BAT = 3.7V
V_CC from High to Low, V_BAT = 3.7V
R_PROG = 2.43k, I_PROG = 500µA
R_PROG = 12.1k, I_PROG = 100µA
V_EN Increasing
V_EN Decreasing
V_EN = 5V
V_{Li CC} Increasing (LTC4059 Only)
V_{Li CC} Decreasing (LTC4059 Only)
I_ACPR = 300µA (LTC4059A Only)
● 100
150
200
●0
35
80
● 1.18 1.21 1.24
● 1.18 1.21 1.24
● 0.3
0.92
1.2
85
●1
1.85
3
● 0.3
0.92
1.2
85
0.25
0.5
115
R_ON
Power FET “ON” Resistance
(Between V_CC and BAT)
I_BAT = 150mA (Note 4)
800 1200
UNITS
V
µA
µA
µA
V
V
mA
mA
µA
µA
mV
mV
V
V
V
mV
MΩ
V
mV
V
°C
mΩ
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4059E/LTC4059AE are guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: Failure to solder the exposed backside of the package to the PC
board ground plane will result in a thermal resistance much higher than
60°C/W.
Note 4: The FET on-resistance is guaranteed by correlation to wafer level
measurements.
4059fb
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