LTC3559 Linear Technology, LTC3559 Datasheet - Page 23

• Manufacturer Part Number: LTC3559
• Description: Linear USB Battery Charger
• Manufacturer: Linear Technology

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PACKAGE DESCRIPTION
3.50 ± 0.05
TYPICAL APPLICATIONS
The Battery Can be Charged with Up to 950mA of Charge Current. Buck Regulator 2 is Enabled Only After V
0.7V. This Provides a Sequencing Function Which May be Desirable in Applications Where a Microprocessor Needs to be Powered Up
2.10 ± 0.05
1.45 ± 0.05
(4 SIDES)
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
Before Peripherals. ⎯ C ⎯ H ⎯ R ⎯ G Interfaces to a Microprocessor Which Decodes the Battery Charger State
MICROPROCESSOR
4.5V TO 5.5V
ADAPTER
TO
100k
0.50 BSC
0.25 ±0.05
0.70 ±0.05
CONTROLLED
PACKAGE
OUTLINE
DIGITALLY
100k
100k
NTC
NTH50603NO1
16-Lead Plastic QFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1691)
887Ω
1μF
PIN 1
TOP MARK
(NOTE 6)
3.00 ± 0.10
(4 SIDES)
MODE
V
NTC
CHRG
PROG
SUSP
HPWR
EN1
EN2
CC
GND
UD Package
LTC3559
EXPOSED PAD
SW1
SW2
PV
BAT
FB1
FB2
IN
0.75 ± 0.05
950mA
UP TO
4.7μH
4.7μH
655k
324k
2.2μF
1.45 ± 0.10
(4-SIDES)
0.200 REF
0.00 – 0.05
309k
649k
+
22pF
22pF
SINGLE
Li-lon CELL
2.7V TO 4.2V
BOTTOM VIEW—EXPOSED PAD
R = 0.115
TYP
10μF
10μF
1.2V AT
400mA
3559 TA02
15 16
OUT1
2.5V AT
400mA
is Up to Approximately
0.50 BSC
0.25 ± 0.05
LTC3559
1
2
(UD16) QFN 0904
0.40 ± 0.10
PIN 1 NOTCH R = 0.20 TYP
OR 0.25 × 45° CHAMFER
23
3559f