LTC4425IDD#TRPBF Linear Technology, LTC4425IDD#TRPBF Datasheet - Page 20

• 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

LTC4425
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC3225-1
LTC3225
LT3485-0/LT3485-1/
LT3485-2/LT3485-3
LT3750
LT3751
20
BATTERY
CAR
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
6V to 36V
20k
D1: DIODES INC. DFLS240
L1: SUMIDA CDRH4D22/HP-2R2
L2: WURTH 7440430022
L3, L4 WURTH 744031002
CSP1, CSP2: CAP-XX HS203F
DESCRIPTION
150mA Supercapacitor Charger
1.4A/0.7A/1A/2A Photofl ash Capacitor Charger with Output
Voltage Monitor and IGBT
Capacitor Charger Controller
Capacitor Controller with Regulation
330pF
ON
2.2μF
●
OFF
FAX: [phone]
28.7k
RUN
V
RT
PG
V
IN
C
LT3684
GND
22μF
●
www.linear.com
BOOST
Embedded Automotive Backup Controller
EN1
EN2
EN3
MODE
RT
PGOOD
SGND
PGND, 1, 2, 3
BIAS
SW
BD
FB
SV
(UD PACKAGE)
IN
LTC3569
PV
IN
V
OUT
, 1, 2, 3
200k
D1
0.1μF
(5V)
SW1
SW2
SW3
FB1
FB2
FB3
2.2μH
590k
L1
2.2μH
2.5μH
2.5μH
L2
L3
L4
COMMENTS
Programmable Supercapacitor Charger Designed to Charge Two
Supercapacitors in Series to a Fixed Output Voltage
(4.8V/5/3V Selectable)
V
320V, 100μF , V
Charges Any Size Capacitor, 10-Lead MS Package
Charges Any Size Capacitor, 4mm × 5mm QFN-20 Package
IN
10μF
; 1.8V to 10V, Charge Time = 3.7 Seconds for the LT3485-0 (0V to
20pF
20pF
20pF
μC
R7
1.5M
R8
1.2M
11, 12
IN
750k
300k
150k
4
6
= 3.6V), I
240k
240k
240k
5
9
7
8
PFI
PFI_RET
V
FB
PFO
SEL
EN
IN
10μF
4.7μF
4.7μF
SD
LTC4425
< 1μA, 3mm × 3mm 10-Lead DFN
3.3V
1.8V
1.2V
© LINEAR TECHNOLOGY CORPORATION 2010
PROG
V
V
GND
OUT
MID
1, 2
10
13
3
LT 0510 • PRINTED IN USA
R6
500Ω
5V, 2A
C
1F
C
1F
SP1
SP2
4425 TA09
4425f