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EMC5755 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EMC5755
기능 Standalone 1.2A Linear Li-Ion Battery Charger
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EMC5755 데이터시트, 핀배열, 회로
ESMT/EMP
EMC5755
Standalone 1.2A Linear Li-Ion Battery Charger
with Thermal Regulation in TDFN-6
General Description
The EMC5755 is a complete linear charger for single cell
lithium-ion batteries. With small TDFN-6 package and
few external components, EMC5755 is well suited for
portable applications. In addition, the EMC5755 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 EMC5755 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 EMC5755
automatically terminates the charge cycle when the
charge current drops to 1/10th the programmed value
after the final float voltage is reached.
The EMC5755 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
EMC5755 can also be used as a LDO when battery is
removed. Other features include shutdown mode,
charge current monitor, under voltage lockout,
automatic recharge and status indicator.
Features
„ Programmable charge current up to 1.2A
„ No MOSFET, sense resistor or blocking diode
required
„ Complete linear charger in TDFN-6 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
960 mA Charger
LDO Mode
(Battery Removed)
„ Typical Performance Characteristics
Complete Charge Cycle (850mAh Battery)
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Time (1000s/DIV)
Publication Date: Oct. 2010
Revision: 2.2
1/17




EMC5755 pdf, 반도체, 판매, 대치품
ESMT/EMP
EMC5755
VCHGB CHGB Pin Output Low Voltage ICHGB =5mA
Recharge Battery Threshold
VRECHRG
Voltage
VFLOAT-VRECHRG
Junction Temperature in Constant
TILM
Temperature Mode
RON Power FET “ON” Resistance
TSS Soft-Start Time
IBAT=0 to IBAT=960V/RPROG
TRECHARGE Recharge Comparator Filter Time VBAT High to Low
Termination Comparator Filter
TTERM
Time
IBAT Falling Below ICHG/10
IPROG PROG Pin Pull-up Current
0.23 0.6
V
160 mV
120 oC
550 mΩ
100 μs
0.75 2.4 4.5 ms
0.4 1.1 2.5 ms
0.4 μA
Note 1: Absolute Maximum ratings indicate limits beyond which damage may occur. Electrical specifications are not
applicable when the device is operated outside of its rated operating conditions.
Note 2: All voltages are defined and measured with respect to the potential at the ground pin.
Note 3: Can not exceed 6.0V.
Note 4: Supply current includes PROG pin current (approximately 100μA) but does not include any current delivered
to the battery through the BAT pin (approximately 96mA).
Order information
EMC5755-00FF06NRR
00 Output voltage
FF06 TDFN-6 Package
NRR RoHS & Halogen free
Rating: -40 to 85°C
Package in Tape & Reel
Order, Mark & Packing Information
Package
Product ID
Marking
Packing
TDFN-6
EMC5755-00FF06NRR
5K units Tape & Reel
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Oct. 2010
Revision: 2.2
4/17

4페이지










EMC5755 전자부품, 판매, 대치품
ESMT/EMP
Typical Performance Characteristics
Unless otherwise specified, VIN = 5V, TA = 25°C.
Charge Current vs Battery Voltage
(Different Ambient Temperature)
Thermal
Regulation
VBAT (V)
Charge Current vs Supply Voltage
EMC5755
Charge Current vs Battery Voltage
(Different RPROG)
VBAT (V)
Charge Current vs Ambient Temperature
VIN (V)
Regulated Output (Float) Voltage vs Supply Voltage
Temperature (oC)
Regulated Output (Float) Voltage vs Temperature
RPROG=10K
VIN (V)
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Temperature (oC)
Publication Date: Oct. 2010
Revision: 2.2
7/17

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부품번호상세설명 및 기능제조사
EMC5754

Standalone Linear Li-Ion Battery Charger

EMP
EMP
EMC5755

Standalone 1.2A Linear Li-Ion Battery Charger

Elite Semiconductor
Elite Semiconductor

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