Datasheet
LM3658
www.ti.com
SNVS328E –MAY 2005–REVISED MARCH 2007
OPERATING RATINGS
(1)(2)
Input Voltage Range for CHG_IN 4.5V to 6.0V
Input Voltage Range for USB_pwr 4.35V to 6.0V
Recommended Load Current 0 to 1000 mA
Power Dissipation
(3)
Internally Limited
Junction Temperature (T
J
) Range −40°C to +125°C
Ambient Temperature (T
A
) Range −40°C to +85°C
(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 specified. Operating Ratings do not imply specified performance limits. For specified performance limits
and associated test conditions, see the Electrical Characteristics tables.
(2) All voltages are with respect to the potential at the GND pin.
(3) The LM3658 has built-in thermal regulation to regulate the die temperature to 120ºC. See Operation Description section for more detail.
THERMAL PROPERTIES
θ
JA
, Junction-to-Ambient Thermal Resistance
(1)
54°C/W
(1) 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 AN-1187
(SNOA401) for more detail.
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.
(1)(2)(3)
Symbol Parameter Conditions Min Typ Max Units
CHARGER
V
CHG_IN
AC Wall Adapter Input Voltage
4.5 6.0 V
Range
V
USBpwr
USB Input Voltage Range 4.35 6.0 V
I
CC_PD
Quiescent Current in Power V
BATT
> V
CC
–V
OK_CHG
1 5 µA
Down Mode
I
CC_STBY
Quiescent Current in Standby V
BATT
< V
CC
− V
OK_CHG
Mode V
CC
> V
POR
400 600 µA
EN_b = High
I
BATT_PD
Battery Leakage Current in V
BATT
> V
CC
+ V
OK_CHG
0.01 2.0 µA
Power Down Mode
I
BATT_MAI
Battery Leakage Current in STAT1 = off, STAT2 = on, adapter or USB
7 15 µA
NT
Maintenance Mode connected, V
BATT
= 4.2V
V
OK_CHG
CHG_IN or USBpwr OK Trip- V
CC
– V
BATT
(Rising) 200
mV
Point V
CC
– V
BATT
(Falling) 50
V
POR
V
CC
POR Trip-Point V
CC
(Rising)
V
BATT
< V
CC
– V
OK_CHG
3.0 V
V
FULL_RATE
< V
BATT
< V
TERM
V
TERM
Battery Charge Termination I
CHG
= 10% of its value when V
BATT
= 3.5V
4.2 V
Voltage
Battery Charge Termination T
A
= 25°C −0.35 +0.35
%
Voltage Tolerance
T
A
= 0°C to 85°C −1.5 +1.5
V
CHG_DO
CHG_IN Drop-Out Voltage V
BATT
= V
TERM
, I
CHG
= 1A
500 mV
V
CC
> V
BATT
+ V
CHG_DO_MAX
V
USB_DO
USBpwr Drop-Out Voltage V
BATT
= V
TERM
, USB_sel = high
250 mV
V
CC
> V
BATT
+ V
USB_DO_MAX
(1) All voltages are with respect to the potential at the GND pin.
(2) Min and Max limits are specified by design, test, or statistical analysis. Typical numbers are not specified, but do represent the most
likely norm.
(3) 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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