LTC4058-4.2_15 Datasheet, PDF (2/12 Pages) Linear Technology – Standalone Linear Li-Ion Battery Charger with Thermal Regulation in DFN

LTC4058-4.2/LTC4058X-4.2
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (V_CC) ....................... –0.3V to 10V
PROG ............................................. – 0.3V to V_CC + 0.3V
BAT, BSENSE .............................................. –0.3V to 7V
CHRG, ACPR, EN ...................................... –0.3V to 10V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ........................................................ 1A
PROG Pin Current ................................................... 1mA
Maximum 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
BSENSE 1
8 EN
BAT 2
7 ACPR
9
CHRG 3
6 V_CC
GND 4
5 PROG
ORDER PART
NUMBER
LTC4058EDD-4.2
LTC4058XEDD-4.2
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 40°C/W (NOTE 3)
EXPOSED PAD IS GROUND (PIN 9)
MUST BE SOLDERED TO PCB
DD PART MARKING
LAEV
LBDH
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes 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
Input Supply Voltage
q 4.25
6.5
I_CC
Input Supply Current
Charge Mode (Note 4), R_PROG = 10k
q
Standby Mode (Charge Terminated)
q
Shutdown Mode (EN = 5V, V_CC < V_BSENSE
q
or V_CC < V_UV)
0.3
1
200 500
25
50
V_FLOAT
Regulated Output (Float) Voltage
0°C ≤ T_A ≤ 85°C, 4.3V < V_CC < 6.5V
4.158 4.2 4.242
I_BAT
BAT Pin Current
R_PROG = 10k, Current Mode
R_PROG = 2k, Current Mode
q
93
100 107
q
465
500
535
I_BSENSE
BSENSE Pin Current (Note 5)
Standby Mode, V_BSENSE = 4.2V
q
Shutdown Mode (EN = 5V, V_CC < V_BSENSE or
V_CC < V_UV)
Sleep Mode, V_CC = 0V
–2.5
–6
±1
±2
±1
±2
I_TRIKL
Trickle Charge Current
V_BSENSE < V_TRIKL, R_PROG = 2k (Note 6)
q
30
45
60
V_TRIKL
Trickle Charge Threshold Voltage
R_PROG = 10k, V_BSENSE Rising (Note 6)
2.8
2.9
3
V_TRHYS
Trickle Charge Hysteresis Voltage
R_PROG = 10k (Note 6)
60
80
110
V_UV
V_CC Undervoltage Lockout Voltage
From V_CC Low to High
q
3.7
3.8
3.92
V_UVHYS
V_CC Undervoltage Lockout Hysteresis
q
150
200
300
V_EN(IL)
EN Pin Input Low Voltage
q
0.4
0.7
V_EN(IH)
EN Pin Input High Voltage
q
0.7
1
R_EN
EN Pin Pull-Down Resistor
q
1.2
2
5
V_ASD
V_CC – V_BSENSE Lockout Threshold
V_CC from Low to High
V_CC from High to Low
70
100 140
5
30
50
I_TERM
C/10 Termination Current Threshold
R_PROG = 10k (I_CHG = 100mA) (Note 7)
R_PROG = 2k (I_CHG = 500mA)
q 0.085 0.10 0.115
q 0.085 0.10 0.115
V_PROG
PROG Pin Voltage
R_PROG = 10k, Current Mode
0.93
1
1.07
V_CHRG
CHRG Pin Output Low Voltage
I_CHRG = 5mA
0.35
0.6
V_ACPR
ACPR Pin Output Low Voltage
I_ACPR = 5mA
0.35
0.6
∆V_RECHRG Recharge Battery Threshold Voltage
V_FLOAT – V_RECHRG, 0°C ≤ T_A ≤ 85°C
60
100 140
UNITS
V
mA
µA
µA
V
mA
mA
µA
µA
µA
mA
V
mV
V
mV
V
V
MΩ
mV
mV
mA/mA
mA/mA
V
V
V
mV
2
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