SC803IMLTRT Semtech, SC803IMLTRT Datasheet

IC, BATTERY CHARGER, 1.5A, MLP-16

SC803IMLTRT

Manufacturer Part Number
SC803IMLTRT
Description
IC, BATTERY CHARGER, 1.5A, MLP-16
Manufacturer
Semtech
Datasheet

Specifications of SC803IMLTRT

Battery Type
Li-Ion, Li-Polymer
Input Voltage
7V
Battery Charge Voltage
4.2V
Charge Current Max
1.5A
Battery Ic Case Style
MLP
No. Of Pins
16
No. Of Series Cells
1
Operating Supply Voltage (min)
4.2V
Operating Supply Voltage (max)
7V
Operating Temp Range
-40C to 85C
Package Type
MLP
Mounting
Surface Mount
Pin Count
16
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC803IMLTRT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Part Number:
SC803IMLTRT
Manufacturer:
SEMTECH
Quantity:
9 330
The SC803 is a fully integrated, single cell, constant-cur-
rent constant-voltage Lithium-Ion battery charger man-
agement system. The SC803 has built in intelligence and
extreme functionality. When the battery voltage is below
2.8V the charger operates in a pre-charge mode with a
charging current of up to 125mA based on the ITERM
pin resistor. This pre-charge mode is set to limit power
dissipation due to an undercharged battery. When the
battery voltage exceeds 2.8V, the charger enters a fast
charge mode. In this mode, the SC803 delivers up to
1.5A to the battery based on the IPRGM pin resistor.
The part also features current termination, ending the
charge cycle when the battery is charged and the charge
current drops below the current programmed by the
ITERM pin resistor. In addition, the charge current can
be monitored by the voltage on the IPRGM pin allowing a
microcontroller or ADC to access the current informa-
tion to determine when to externally terminate the charge
cycle. Once the charge cycle is complete and terminates,
the device enters the charge monitor mode where the
output voltage of the battery is monitored. If this voltage
drops below the recharge threshold the device will enter
the fast charge mode again, to bring the battery to its
fully charged state. Both the shutdown and monitor
modes drain no more than 1uA from the battery guaran-
teed.
The output voltage to the battery is controlled to within
1% of the programmed voltage for either 4.1V or 4.2V.
The SC803 can also function as a general purpose cur-
rent source or as a current source for charging nickel-
cadmium (NiCd) and nickel-metal-hydride (NiMH) batter-
ies using external termination.
Revision 4, November 2004
POWER MANAGEMENT
Description
Typical Application Circuit
Pre
Charge
CHARGER VIN
Current
 =
C1
1uF
2.8
R2
• 
R1
88
R2
Fast
Charge
14
13
3
7
4
8
6
5
Current
VCC
VCC
IPRGM
EN
ITERM
BIP
GND
NC
SC803
VPRGM
BSEN
VOUT
VOUT
STAT
OVP
Lithium-Ion Battery Charger System
=
NC
CP
1
1.5
Features
R1
Applications
11
10
9
2
1
16
15
12
BATTERY
• 
Fully integrated charger with FET pass transistor,
reverse-blocking diode, sense resistor and thermal
protection
Complete voltage ranges of 4.1V, 4.2V &
Programmable precharge, fastcharge & termination
current
Battery voltage controlled to 1% accuracy
Soft-start for step load and adaptor plug-in
Up to 1.5A continuous charge current
Charge current monitor output from microcontroller
or ADC Interface
Input voltages range from 4.2V to 7V
0.1µA Battery drain current in shutdown and
monitor modes
Operates without a battery in regulated LDO mode
Small 4mm x 4mm 16 lead MLP package
Low thermal impedance of 50° ° ° ° ° C/watt
Few external components
Over current protection in all charging modes
Over voltage protection with fault pin output
All outputs able to drive LED’s and interface to host
processor
Remote Kelvin sensing at the battery terminal
Small input & output filter capacitors
Status output communicates charging and end of
charge cycle
Cellular phones
PDA’s
Handheld meters
Charging stations
Handheld computers
Digital cameras
Programmable current source
adjustable
1000
Fully Integrated High Current
C2
2.2uF
Terminatio
FAULT
n
Current
STATUS
 =
1.5
R2
CHARGER
PRESENT
• 
88
www.semtech.com
SC803

Related parts for SC803IMLTRT

SC803IMLTRT Summary of contents

Page 1

... ITERM BSEN 8 16 BIP VOUT 6 15 GND VOUT SC803 BATTERY 1.5   − = •  Fast Charge Current 1000    SC803 CHARGER FAULT STATUS PRESENT C2 2.2uF  = 1.5  •  Terminatio n Current 88   R2  www.semtech.com ...

Page 2

... Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied ° ° Tied to PCB with 1 Square Inch, 2 Ounce Copper Electrical Characteristics Unless otherwise noted: VCC = 4.75V - 5.25V  2004 Semtech Corp µ µ Ω > Ω Ω θ ...

Page 3

... POWER MANAGEMENT Electrical Characteristics Cont. Unless otherwise noted: VCC = 4.75V - 5.25V Thermally Limited  2004 Semtech Corp < V < ° > > µ ° ° ° www.semtech.com SC803 ° µ µ ...

Page 4

... MLP16: 4X4 16 LEAD Pin Descriptions  2004 Semtech Corp. Ordering Information VCC Notes (1) Only available in tape and reel packaging. A reel con- tains 3,000 devices. STAT 10 (2) TRT extension designates the lead-free leadframe package option. (3) Specify the desired IC part number when ordering. 9 OVP 8 BIP ...

Page 5

... POWER MANAGEMENT Block Diagram Control OVP 9 1. Reference and OT SD GND 6 EN STAT 10 Status BIP BSEN 1 Vprog Detect VPRGM 2  2004 Semtech Corp. Fast Charge Enable UV Charge Pump OV 1.2V 4.2V 4.1V 3. Vout 1.2V V_FB - + + - Termination - + 1.2V 4.2V 4.1V 3.0V 5 SC803 VCC ...

Page 6

... ITERM R   TERM  2004 Semtech Corp. Monitor Mode In the monitor mode the voltage of the battery will be monitored against the programmed voltage. This will oc- cur after a battery has been fully charged and the device has shut off. If the voltage of the battery falls below the ...

Page 7

... R1, R2 and C2 (see schematic on page 10). With JP7 removed, jumper JP2 should be added to complete the changes required for adjustable mode operation on the evaluation board. For further evaluation board information, see the section tilted Evalu- ation Board.  2004 Semtech Corp ...

Page 8

... SC801M operation. Connector J1 is used for con- necting the evaluation board to a demonstration plat- form to exemplify the SC803 operation. Other compo- nents on the eval board consist of Semtech’s SD12 and SD05 ESD clamp diodes which should be part of any system requiring ESD protection. LED’s for status infor- mation and TP3 which will allow the current through the battery to be monitored ...

Page 9

... The two pins that are labeled NC are not connected to the die. Therefore, tying these pins to the ground plane offers no aide in heat removal and has no electrical benefit.  2004 Semtech Corp. 9 SC803 www.semtech.com ...

Page 10

... CON16AP TP1 TP2 +5VIN GND TP3 ISENSE SD12 10uF/25V JP5 JP6 CHGR / LDO ENABLE / DISABLE R3 R4 100K 1M Evaluation Board Gerber Plots Top Gerber Inner Gerber  2004 Semtech Corp. JP1 4. JP4 JP3 BIAS 4. 0.1uF 14 12 VCC VCC VPRGM 3 10 IPRGM ...

Page 11

... POWER MANAGEMENT LDO Mode Timing Diagram Vcc BIP Vout 1ms 1ms Iout Precharge Limit CP OVP Stat EN  2004 Semtech Corp. LDO Mode LDO Mode 6.5V 6.3V 5V 4.2V Low 4.2V 4ms 1ms 1ms I LIMIT Soft Start 1ms High Z 11 SC803 4ms I LIMIT ...

Page 12

... POWER MANAGEMENT Charge Mode Timing Diagram 4.2V Vcc BIP Vout 1ms 1ms Iout Precharge Limit CP OVP Stat EN  2004 Semtech Corp. Charge Mode Charge Mode Charge Mode Charge Mode 4.2V 1ms 2.8V precharge Icharge 4ms Termination Soft Start Current End of Charge ...

Page 13

... POWER MANAGEMENT State Diagram LDO Mode STAT = High Z, BSEN = CV Iout > 1500/Rprog Yes LDO Current Limit Iout = 1500/Rprog BSEN = CV ? Yes  2004 Semtech Corp. Vin > UVLO Shutdown Mode Vout/Iout off CP,STAT,OVP Low CP Output = High En = High And T < Over Temp SD j Yes Charge Mode ...

Page 14

... IPRGM Resistance (kohm ) Output Voltage vsTemperature 4.21 4.2 4.19 4.18 -40 - 100 120 Temperature (Degrees C)  2004 Semtech Corp. Charge Mode Bias Current vs Input Voltage 2 1.75 1.5 1.25 1 4.3 4.7 Vout Leakage Current vs Temperature 1 ...

Page 15

... Output Current (mA) 4.5 4 3.5 3 2.5 2 1.5  2004 Semtech Corp. 1600 1400 1200 1000 800 600 400 200 0 1010 Battery Charge Profile Charge Time 15 IPRGM Voltage vs Output Current RPRGM = 1.87K 0 200 400 ...

Page 16

... MARK) A aaa C E1 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. Marking Information Top Mark yy = two-digit year of manufacture ww = two-digit week of manufacture  2004 Semtech Corp. DIM MIN D A .031 B A1 .000 A2 b .010 D ...

Page 17

... POWER MANAGEMENT Land Pattern MLP-16 pin (C) X NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information Portable Power Management Products Division  2004 Semtech Corp. DIM Semtech Corporation 200 Flynn Rd., Camarillo, CA 93012-8790 ...

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