LTC3225-1_15 Datasheet, PDF (2/14 Pages) Linear Technology – 150mA Supercapacitor Charger

LTC3225/LTC3225-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN, C_OUT to GND ......................................... –0.3V to 6V
SHDN, V_SEL...................................... –0.3V to V_IN + 0.3V
C_OUT Short-Circuit Duration ............................. Indefinite
I_VIN Continuous (Note 2)......................................350mA
I_OUT Continuous (Note 2) .....................................175mA
Operating Temperature Range (Note 3).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
C⁺ 1
C^– 2
CX 3
SHDN 4
PGOOD 5
10 C_OUT
9 V_IN
11 8 GND
7 PROG
6 V_SEL
DDB PACKAGE
10-LEAD (3mm s 2mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 76°C/W
EXPOSED PAD (PIN 11) MUST BE SOLDERED TO
LOW IMPEDANCE GND PLANE (PIN 8) ON PCB
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL
PART MARKING PACKAGE DESCRIPTION
LTC3225EDDB#TRMPBF LTC3225EDDB#TRPBF LCYR
10-Lead (3mm × 2mm) Plastic DFN
LTC3225EDDB-1#TRMPBF LTC3225EDDB-1#TRPBF LFFS
10-Lead (3mm × 2mm) Plastic DFN
TRM = 500 pieces.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.6V, C_IN = 2.2μF, C_FLY = 1μF, unless otherwise specified (Note 3).
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LTC3225
V_IN-UVLO
V_IN-UVLO-HYS
V_IN
Input Supply Undervoltage Lockout
High-to-Low Threshold
Input Supply Undervoltage Lockout
Hysteresis
Input Voltage Range
V_COUT
V_COUT-HYS
V_TOP/BOT
LTC3225-1
Charge Termination Voltage
Sleep Mode Threshold (Rising Edge)
Output Comparator Hysteresis
Maximum Voltage Across Each of the
Supercapacitors After Charging
V_SEL = V_IN
V_SEL = 0
V_SEL = V_IN
V_SEL = 0
V_SEL = V_IN
V_SEL = 0V
V_SEL = V_IN
V_SEL = 0V
V_SEL = V_IN
V_SEL = 0V
l 2.65 2.75 2.85
V
l 2.4
2.5
2.6
V
150
mV
140
mV
l
3
l 2.8
5.5
V
5.5
V
l 5.2
5.3
5.4
V
l 4.7
4.8
4.9
V
100
mV
l
2.75
V
l
2.5
V
V_IN-UVLO
V_IN-UVLO-HYS
Input Supply Undervoltage Lockout
High-to-Low Threshold
Input Supply Undervoltage Lockout
Hysteresis
V_SEL = V_IN
V_SEL = 0
V_SEL = V_IN
V_SEL = 0
l 2.25 2.35 2.45
V
l 2.0
2.1
2.2
V
150
mV
140
mV
3225fb
2