LM3658 Datasheet, PDF (5/13 Pages) National Semiconductor (TI) – Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

Electrical Characteristics Unless otherwise noted, V_CC (V_{CHG_IN} and/or V_USBpwr) = 5V, V_BATT = 3.5V.
C_{CHG_IN} = 1 µF, C_USBpwr = 1 µF, C_BATT = 1 µF. Typical values and limits appearing in normal type apply for T_J = 25˚C. Limits
appearing in boldface type apply over T_J = 0˚C to +85˚C. (Notes 2, 6, 7) (Continued)
Symbol
Parameter
Conditions
DETECTION AND TIMING
T_{PQ_FULL}
Deglitch Time for
Pre-Qualification to
Full-Rate Charge
Transition
T_{FULL_PQ}
Deglitch Time for
Full-Rate to
Pre-Qualification
Transition
T_CHG
T_EOC
Charge Timer
Deglitch Time for
End-of-Charge
Transition
T_BATTEMP
Deglitch Time for
Battery Temperature
Fault
T_DGL
Deglitch Time for
EN_b and USB_sel
Pins
T_ITOPOFF
T_TOPOFF
Deglitch Time for
I_TOPOFF
Top-Off Charging
Timer
I/O
V_IL
Low-Level Input
Voltage
V_IH
High-Level Input
Voltage
I_OL
Low-Level Output
Current
I_OH
High-Level Output
Current
EN_b
USB_sel
EN_b
USB_sel
STAT1, STAT2, output voltage = 0.25V
STAT1, STAT2, output voltage = 6.0V
Limit
Typ
Units
Min
Max
300
270
330
ms
300
270
330
ms
300
270
330
min
300
270
330
ms
40
20
80
ms
40
20
80
ms
300
270
330
ms
30
27
33
min
0
0.7
V
1.5
1.4
V
2.5
25
10
mA
0.01
1
µA
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: The LM3658 has built-in thermal regulation to regulate the die temperature to 120^oC. See Operation Description section for more detail.
Note 4: The Human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin. MIL-STD-883 3015.7
Note 5: 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. Please refer to application note AN1187 for more detail.
Note 6: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 7: LM3658 is not intended as a Li-Ion battery protection device; battery used in this application should have an adequate internal protection.
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