LTC3441 Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC3441 Datasheet PDF : 20 Pages
| |||
LT3420/LT3420-1
TYPICAL APPLICATIO
LT3420-1 Photoflash Circuit Uses Tiny (3mm Tall) Transformer
VBAT
1.8V TO 6V
C1
4.7µF
T1
1:10.2
5
4
D1
8
1
DANGER HIGH VOLTAGE
OPERATION BY HIGH VOLTAGE
60.4k
TRAINED PERSONEL ONLY
23
6
VCC
2.5V TO 6V
CHARGE
DONE
VBAT RFB
SW
4
C2
VCC
SEC
4.7µF
LT3420-1
C3
7
100µF +
330V
PHOTOFLASH
CAPACITOR
9
CHARGE
8
DONE
1
RREF
CT
GND
10
0.1µF
5
2k
320V
C1, C2: 4.7µF, X5R or X7R, 6.3V
C3: RUBYCON 100µF PHOTOFLASH CAPACITOR
T1: TDK LDT565630T-002 FLYBACK TRANSFORMER
D1: GENERAL SEMICONDUCTOR GSD2004S SOT-23
DUAL DIODE. DIODES CONNECTED IN SERIES
3420 TA05
Charge Time
10
VOUT CHARGED
FROM 50V TO 320V
8
6
COUT = 100µF
4
COUT = 40µF
2
0
2
3
4
5
6
VBAT (V)
3420 TA06
RELATED PARTS
PART NUMBER
DESCRIPTION
LTC®3400/LTC3400B 600mA (ISW), 1.2MHz, Synchronous Step-Up
DC/DC Converters
LTC3401/LTC3402
1A/2A (ISW), 3MHz, Synchronous Step-Up
DC/DC Converters
LTC3405/LTC3405A 300mA (IOUT), 1.5MHz, Synchronous Step-Down
DC/DC Converters
LTC3406/LTC3406B 600mA (IOUT), 1.5MHz, Synchronous Step-Down
DC/DC Converters
LTC3407
Dual 600mA (IOUT), 1.5MHz, Synchronous Step-Down
DC/DC Converter
LTC3411
1.25A (IOUT), 4MHz, Synchronous Step-Down
DC/DC Converter
LTC3425
5A (ISW), 8MHz, Multiphase Synchronous Step-Up
DC/DC Converter
LTC3440/LTC3441
600mA/1A (IOUT), 2MHz/1MHz, Synchronous Buck-Boost
DC/DC Converters
LT3464
85mA (ISW), Constant Off-Time, High Efficiency
Step-Up DC/DC Converter with Integrated Schottky
and Output Disconnect
LTC3467
1.1A (ISW), 1.3MHz, High Efficiency Step-Up
DC/DC Converter
ThinsSOT is a trademark of Linear Technology Corporation.
COMMENTS
VIN = 0.85V to 5V, VOUT(MAX) = 5V, IQ = 19µA/300µA,
ISD = <1µA, ThinSOTTM Package
VIN = 0.5V to 5V, VOUT(MAX) = 6V, IQ = 38µA, ISD = <1µA,
MS Package
95% Efficiency, VIN = 2.7V to 6V, VOUT(MIN) = 0.8V , IQ = 20µA,
ISD = <1µA, ThinSOT Package
95% Efficiency, VIN = 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 20µA,
ISD = <1µA, ThinSOT Package
95% Efficiency, VIN = 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40µA,
ISD = <1µA, ThinSOT Package
95% Efficiency, VIN = 2.5V to 5.5V, VOUT(MIN) = 0.8V, IQ = 60µA,
ISD = <1µA, MS Package
95% Efficiency, VIN = 0.5V to 4.5V, VOUT(MIN) = 5.25V, IQ = 12µA,
ISD = <1µA, QFN Package
95% Efficiency, VIN = 2.5V to 5.5V, VOUT(MIN) = 2.5V, IQ = 25µA,
ISD = <1µA, MS Package
VIN = 2.3V to 10V, VOUT(MAX) = 34V, IQ = 25µA, ISD = <0.5µA,
ThinSOT Package
VIN = 2.4V to 16V, VOUT(MAX) = 40V, IQ = 1.2mA, ISD = <1µA,
ThinSOT Package
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
3420fa
LT/TP 0903 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2002
Share Link: 