參數資料
型號: LM3658SD
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: Dual Source USB/AC Li Chemistry Charger IC for Portable Applications
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO10
封裝: 3 X 3 MM, LLP-10
文件頁數: 5/13頁
文件大?。?/td> 663K
代理商: LM3658SD
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
= 1 μF, C
= 1 μF. Typical values and limits appearing in normal type apply for T
J
= 25C. Limits
appearing in
boldface
type apply over T
J
= 0C to +85C. (Notes 2, 6, 7) (Continued)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
DETECTION AND TIMING
T
PQ_FULL
Deglitch Time for
Pre-Qualification to
Full-Rate Charge
Transition
Deglitch Time for
Full-Rate to
Pre-Qualification
Transition
Charge Timer
Deglitch Time for
End-of-Charge
Transition
Deglitch Time for
Battery Temperature
Fault
Deglitch Time for
EN_b and USB_sel
Pins
Deglitch Time for
I
TOPOFF
Top-Off Charging
Timer
300
270
330
ms
T
FULL_PQ
300
270
330
ms
T
CHG
T
EOC
300
270
330
min
300
270
330
ms
T
BATTEMP
40
20
80
ms
T
DGL
40
20
80
ms
T
ITOPOFF
300
270
330
ms
T
TOPOFF
30
27
33
min
I/O
V
IL
Low-Level Input
Voltage
EN_b
USB_sel
EN_b
USB_sel
STAT1, STAT2, output voltage = 0.25V
0
0.7
1.5
V
V
IH
High-Level Input
Voltage
1.4
2.5
V
I
OL
Low-Level Output
Current
High-Level Output
Current
25
10
mA
I
OH
STAT1, STAT2, output voltage = 6.0V
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
o
C. See Operation Description section for more detail.
Note 4:
The Human body model is a 100 pF capacitor discharged through a 1.5 k
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.
L
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