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EMC5754 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EMC5754
기능 Standalone Linear Li-Ion Battery Charger
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EMC5754 데이터시트, 핀배열, 회로
Elite MicroPower Inc.
Preliminary
EMC5754
Standalone Linear Li-Ion Battery Charger with
Thermal Regulation in SOT-25
General Description
The EMC5754 is a complete linear charger for single cell
lithium-ion batteries. With small SOT-25 package and
few external components, EMC5754 is well suited for
portable applications. In addition, the EMC5754 is
specifically designed to work within USB power
specifications.
No external sense resistor and blocking diode are
required. Charging current can be programmed
externally with a single resistor. The built-in thermal
regulation facilitates charging with maximum power
without risk of overheating.
The EMC5754 always preconditions the battery with
1/10 of the programmed charge current at the
beginning of a charge cycle, until 40µs after it verifies
that the battery can be fast-charged. The EMC5754
automatically terminates the charge cycle when the
charge current drops to 1/10th the programmed value
after the final float voltage is reached.
The EMC5754 consumes zero reverse current from the
battery at standby, shutdown and sleep modes. This
feature reduces the charge and discharge cycles on
the battery, further prolonging the battery life. The
EMC5754 can also be used as a LDO when battery is
removed. Other features include shutdown mode,
www.DataSheet4Uc.hcaormge current monitor, under voltage lockout,
automatic recharge and status indicator.
Features
Programmable charge current up to 1A
No MOSFET, sense resistor or blocking diode
required
Complete linear charger in SOT-25 for single cell
Lithium-ion batteries
Typical zero reverse current from battery
Thermal regulation maximizes charge rate
without risk of overheating
Charges single cell Li-ion batteries directly from
USB port
Act as a LDO when battery is removed
Preset 4.2V charge voltage with ±1% accuracy
Automatic recharge
Charge status indicator
C/10 charge termination
45µA shutdown supply current
2.9V trickle charge threshold
Soft-start limits inrush current
RoHS compliant and Pb-free
Applications
Wireless handsets
Hand-held instruments
Portable information appliances
Bluetooth application
Charging docks and cradles
Typical Application Diagram
580 mA Charger
LDO Mode
(Battery Removed)
Typical Performance Characteristics
Complete Charge Cycle (850mAh Battery)
Time (1000s/DIV)
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice,
and customers are advised to obtain the latest version of relevant information prior to placing orders
DSC5754_V2.1 June 10th 2008
Page 1 of 17
www.elitemicropower.com




EMC5754 pdf, 반도체, 판매, 대치품
Elite MicroPower Inc.
Preliminary
EMC5754
Absolute Maximum Ratings (Notes 1, 2)
VIN, VBAT, VCHGB
-0.3V to 6.0V
VPROG
(Note 3) -0.3V to VIN +0.3V
BAT Short-Circuit Duration
Continuous
BAT Pin Current
1A
PROG Pin Current
1mA
Storage Temperature Range
-65°C to160°C
Junction Temperature (TJ)
Lead Temperature (10 sec.)
Thermal Resistance (θJA)
SOT-25
Operating Ratings
Temperature Range
Supply Voltage
150°C
260°C
(Note 5)
-40°C to 85°C
4.25V to 5.5V
Note: Devices are ESD sensitive. The leads should be shorted together or the device placed in conductive foam during
storage or handling to prevent electrostatic damage to the device.
Electrical Characteristics
Unless otherwise specified, TA=25°C and VIN=5V.
Symbol
Parameter
Conditions
VIN Input Voltage
Charge Mode, RPROG=10K (Note 4)
ICC Input Supply Current
Standby Mode (Charge Terminated)
Shutdown Mode (RPROG Not Connected,
VIN<VBAT or VIN <VUV)
VFLOAT Regulated Output (Float) Voltage 0°C TA 85°C
RPROG=2K, Current Mode
IBAT BAT Pin Current
Standby Mode, VBAT=4.2V
Shutdown Mode (RPROG Not Connected)
www.DataSheeItT4RIUCK.LcEomTrickle Charge Current
Sleep Mode, VIN=0V
VBAT<VTRICKLE, RPROG=2K
VTRICKLE Trickle Charge Threshold Voltage RPROG=10K, VBAT Rising
VTRHYS Trickle Charge Hysteresis Voltage RPROG=10K
VIN Under voltage Lockout
VUV
Threshold
From VIN Low to High
VIN Under voltage Lockout
VUVHYS
Hysteresis
Manual Shutdown Threshold
VMSD
Voltage
PROG Pin Rising
PROG Pin Falling
VIN from Low to High
VASD VIN-VBAT Lockout Threshold Voltage
VIN from High to Low
C/10 Termination Current
ITERM
Threshold
RPROG=10K
VPROG PROG Pin Voltage
RPROG=10K, Current Mode
CHGB Pin Weak Pull-Down
ICHGB
Current
VCHGB=5V
Min
4.25
150
50
20
4.158
447
-1
-1
-1
21
2.8
2.45
1.00
5
0.93
Typ
260
106
45
4.2
480
0
0
0
50
2.9
210
3.0
180
1.18
1.04
80
30
0.1
1.0
24
Max
5.5
330
150
75
4.242
513
1
1
1
66
3.0
3.75
Units
V
µA
µA
µA
V
mA
µA
µA
µA
mA
V
mV
V
mV
1.25
V
V
140 mV
mV
mA/mA
1.07
V
µA
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice,
and customers are advised to obtain the latest version of relevant information prior to placing orders
DSC5754_V2.1 June 10th 2008
Page 4 of 17
www.elitemicropower.com

4페이지










EMC5754 전자부품, 판매, 대치품
Elite MicroPower Inc.
Preliminary
Turn off the LED after Charge is Terminated
EMC5754
*The formula for R1 is R1 < V1 , where V1 is the turn-on
35µA
threshold voltage of the LED device.
www.DataSheet4U.com
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice,
and customers are advised to obtain the latest version of relevant information prior to placing orders
DSC5754_V2.1 June 10th 2008
Page 7 of 17
www.elitemicropower.com

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