LTC4425IDD#TRPBF Linear Technology, LTC4425IDD#TRPBF Datasheet - Page 5

• Manufacturer Part Number: LTC4425IDD#TRPBF
• Description: IC SUPERCAP CHRGR DIO/MON 12DFN
• Manufacturer: Linear Technology

Specifications of LTC4425IDD#TRPBF

• Applications: Supercapacitor Charger
• Current - Supply: 20µA
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
3.295
3.290
3.285
3.280
3.275
3.270
3.265
3.260
3.255
1200
1000
1200
1000
800
600
400
200
800
600
400
200
0
0
–45
0
0
LDO Regulation Voltage
vs Charge Current
Charge Current
vs (V
Charge Current
vs Junction Temperature
V
R
V
R
V
IN
OUT
IN
PROG
–30
PROG
0.1
= 3.8V
= 3.8V
200
SET FOR 3.3V
–15 0 15
IN
0.2 0.3 0.4
V
= 1k, FB GROUNDED
= 1k
–V
IN
TO V
OUT
TEMPERATURE (°C)
400
OUT
) Differential
LDO MODE (FB GROUNDED)
I
CHG
30 45 60 75 90 105 120
DIFFERENTIAL (V)
600
0.5 0.6 0.7 0.8 0.9 1
(mA)
800
NORMAL MODE
R
V
PROG
1000
IN
= 3.8V
4425 G01
= 1k
4425 G04
4425 G07
1200
3.286
3.285
3.284
3.283
3.282
3.281
3.280
3.279
3.278
3.277
1200
1000
3000
2500
2000
1500
1000
800
600
400
200
500
0
0
–45
0
0
LDO Regulation Voltage
vs Temperature
PROG Pin Voltage
vs (V
Charge Current
vs V
THERMAL REGULATION
ON-CHIP POWER DISSIPATION ~4W
CASE TEMP ~100°C
V
FB, PROG PINS SHORTED TO GND
AMBIENT TEMP 25°C
V
V
IN
IN
OUT
0.1
–30
0.5
= 3.8V
= 5V
OUT
SET FOR 3.3V
IN
0.2 0.3 0.4
V
–15 0
IN
1
– V
in Thermal Regulation
TO V
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
1.5
OUT
OUT
LDO MODE (FB GROUNDED)
) Differential
15
2
DIFFERENTIAL (V)
0.5 0.6 0.7 0.8 0.9 1
2.5
30
NORMAL MODE
45
3
R
60
3.5
V
PROG
IN
= 3.8V
75
4
4425 G02
= 1k
4425 G05
4425 G08
T
A
90
4.5
= 25°C, unless otherwise noted.
80
70
60
50
40
30
20
10
25
20
15
10
20
18
16
14
12
10
0
5
0
8
6
4
2
0
–45
–45
2.7
Charger FET On-Resistance
vs Supply Voltage
V
vs Temperature (V
V
vs Temperature (V
IN
OUT
–25
Quiescent Current
–25
3
Quiescent Current
3.3
–5
–5
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
V
V
V
IN
IN
OUT
3.6
= 3.8V
= 2.7V
15
15
= 3.8V
LTC4425
–45°C
90°C
25°C
3.9
IN
IN
35
35
≥ V
< V
V
OUT
4.2
OUT
OUT
55
55
= 2.7V
)
)
4.5
75 90
75 90
4425 G03
4425 G06
4425 G09
5
4425f
4.8