LP3913 Datasheet, PDF (7/70 Pages) Texas Instruments – Power Management IC for Flash Memory-Based Portable Media Players

LP3913
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SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013
LI-ION BATTERY CHARGER ELECTRICAL CHARACTERISTICS
Unless otherwise noted, VDD = 5.0V,VBATT = 3.6V, C_BATT = 4.7 µF, C_{CHG_DET} = 10 µF, R_IREF = 121 kΩ. Typical values and
limits appearing in normal type apply for T_J = 25°C. Limits appearing in boldface type apply over the entire junction
temperature range for operation, T_J = 0°C to +125°C. ^{(1)(2)(3)(4)(5)}
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V_USB
Minimum External USB
Supply Soltage
USB Current Limit = 500 mA
4.15
4.25
4.35
V
V_{USB_HYST}
USBPWR Detect
Hysteresis
50
mV
CHG_DET
Minimum External
Adapter Current Limit = 1A
Adapter Supply Voltage V_FWD Schottky = 350 mV
4.4
4.5
4.6
V
Range
V_{CHG_HYST}
CHG_DET Input
Hysteresis
150
mV
I_{USB_SUSP}
Quiescent Current in USB
Suspend Mode
USB Suspend Mode,
V_USB = 5.0V
USBSUSP = USBPWR
USBISEL = 0V
30
60
µA
V_{TERM_TOL}
I_{CHG_WA}
Battery Charge
Termination Voltage
Tolerance
T_A = 25°C,
I_PROG = 500 mA
I_CHG = 50 mA
T_A = 0°C to 125°C,
I_PROG = 500 mA,
I_CHG = 50 mA
Full-rate Charging Current CHG_DET = 5.25V
from Wall Adapter Input
(See Full-Rate Charging
Mode)
V_BATT = 3.6V
I_PROG = 500 mA
-0.35
4.2V
+0.35
−0.5
4.1V
+0.5
−0.5
4.38V
+0.5
%
−1
4.2V
+1
−1.5
4.1V
+1.5
−1.5
4.38V
+1.5
450
500
550
mA
I_{CHG_USB}
Full-rate Charging Current USB = 5V
from USBPWR Input (See V_BATT = 3.6V
Full-Rate Charging Mode) I_PROG = 500 mA
USB_ISEL = 800 mA
450
500
550
mA
USB = 5V
V_BATT = 3.6V
I_PROG = 500 mA
USB_ISEL = 500 mA
405
450
495
mA
USB I_LIMIT
USB_ISEL = 100 mA
USB_ISEL= 500 mA
USB_ISEL = 800 mA
90
95
100
450
475
500
mA
720
760
800
I_PREQUAL
Pre-qualification Current V_BATT = 2.5V, Wall Adapter
%
Charge Current.
Percentage of Programmed
8
10
12
Full Rate Current.
VBATT = 2.5V, USB Charge
Current
40
50
60
mA
V_{FULL_RATE}
Full-rate Qualification
V_BATT Rising, Transition from
Threshold
Pre-Qualification to Full-rate
2.75
2.85
2.95
V
Charging
V_{TH_H}
Upper T_S Comparator
Limit
2.82
2.87
2.93
V
V_{TH_L}
Lower T_S Comparator
45°C CHSPV Reg D3 = 0
0.315
0.33
0.345
Limit
50°C CHSPV Reg D3 = 1
0.255
0.27
0.285
V
I_TSENSE
Battery Temperature
Sense Current
7.75
8.00
8.25
µA
(1) All voltages are with respect to the potential at the GND pin.
(2) Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power
dissipation exists, special care must be paid to thermal dissipation issues in board design.
(3) Min and Max limits are specified by design, test, or statistical analysis. Typical numbers represent the most likely norm.
(4) Low ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.
(5) Typical values and limits appearing in normal type for T_J = 25°C. Limits appearing in boldfacetype apply over the entire junction
temperature range for operation, −40°C to +125°C.
Copyright © 2006–2013, Texas Instruments Incorporated
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