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參數(shù)資料
| 型號(hào)： | LX2201CLQT |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| 封裝： | 4 X 4 MM, PLASTIC, MLPQ-20 |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 231K |
| 代理商： | LX2201CLQT |
LX2201
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright
2000
Rev. 1.0, 2004-04-14
WWW
.Microse
m
i
.CO
M
USB Li-Ion Battery Charger
TM
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VIN)..........................................................................-0.3V to 7V
Analog Input Signals (VIDx, VM, SNS) .............................................-0.3V to 7V
Battery Charging Current (IBAT).........................................................................2A
Discharge Current (IVDD)....................................................................................3A
Operating Junction Temperature.................................................................. 150
°C
Storage Temperature Range...........................................................-65
°C to 150°C
Lead Temperature (Soldering 180 seconds) ................................................ 235
°C
VIN Maximum DC Current..........................................................................500mA
VIN Maximum Surge Current.............................................................................2A
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal
.
TH ERMAL DATA
LQ Plastic Micro Lead Frame Quad Package 20-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θ
JA
40
°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJA).
The
θ
JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the
above assume no ambient airflow.
PACKAGE PIN OUT
CMP
LQ PACKAGE
(Top View)
N.C. – No Internal Connection
N/U – Not Used
RSVD – Do Not Use
FUNCTIONAL PIN DESCRIPTION
Name
Description
BAT
Charging Output - This pin is wired to the positive terminal of the battery. (The negative battery terminal is wired to GND.)
CCP
Charge Current Programming Pin - A resistor (RCP) is connected between this pin and GND. The constant current is
determined by the following relationship:
RCP
65000
I
)
MAX
(
BAT
=
CMP
Compensation Pin – Connect a 0.1uF compensation capacitor from this pin to VDD.
CTP
Charge Termination Programming Pin – A resistor (RTP) is connected between this pin and GND. The termination charge
current is determined by the following relationship:
RTP
I
MIN
BAT
7500
)
(
=
CUS
Maximum VIN Current Programming Pin – A resistor (RUS) is connected between this pin and GND. The Hi Level charge
current is determined by the following relationship:
RUS
237
I
))
HI
(
IN
=
GND
Common Ground
NC
Not Connected. This pin is connected internally and should be left floating.
PSW
PMOS Switch driver – This output is designed to drive the gate of an external PMOS power switch. The driver is pulled low
(PMOS on state) when VDD > VBAT.
VDD
Common Power Node – Connects to system power bus.
VIDx
State Select Input – Applying a two bit TTL compatible signal sets the desired state of the charger corresponding to the Truth
Table.
VIN
Voltage Input – Current limited USB input. Apply a USB compliant power input.
VM
Voltage Mode Select - Selects the constant voltage charge level. Wired to VIN for 4.1V and GND for 4.2V.
STAT
Status - This pin is a logic high level when the battery is being charged. A low signal indicates either under voltage lockout,
charge completed, or VBAT > VDD, or VID0 = VID1 = 0.
PP
AA
CC
KK
AA
GG
EE
DD
AA
TT
AA
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