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參數(shù)資料
| 型號： | LT3420 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Photoflash Capacitor Chargers with Automatic Refresh |
| 中文描述： | 照相閃光燈電容充電器，具有自動刷新 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 368K |
| 代理商： | LT3420 |
LT3420/LT3420-1
3
3420fa
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Rated breakdown with LT3420 in power delivery mode and power
switch off.
Note 3:
The LT3420/LT3420-1 are guaranteed to meet performance
specifications from 0
°
C to 70
°
C. Specifications over the –40
°
C to 85
°
C
PARAMETER
Switch V
CESAT
CONDITIONS
LT3420, SW = 1A
LT3420-1, SW = 0.5A
V
SW
= 38V (LT3420), V
SW
= 50V (LT3420-1)
MIN
TYP
220
130
0.01
MAX
340
230
1
UNITS
mV
mV
Switch Leakage Current
CHARGE Input Voltage High
CHARGE Input Voltage Low
CHARGE Pin Bias Current
μ
A
V
V
μ
A
μ
A
V
mV
1.5
0.2
15
0.1
V
CHARGE
= 3V
V
CHARGE
= 0V
100k from V
CC
to DONE
33
μ
A into DONE Pin
4.5
0.01
3.3
100
DONE Output Signal High
DONE Output Signal Low
200
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= V
BAT
= 3.3V, V
CHARGE
= V
CC
unless otherwise noted. (Note 3)
The
G
denotes the specifications which apply over the full operating
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 4:
Bias current flows out of R
FB
pin.
Note 5:
Current limit guaranteed by design and/or correlation to static test.
TYPICAL PERFOR AU
Graphs apply to both the LT3420 and LT34201-1 unless otherwise noted.
Output Voltage in Refresh Mode,
LT3420
Output Voltage in Refresh Mode,
LT3420
Charge Time, LT3420
TEMPERATURE (
°
C)
–50
V
O
100
3420 G01
0
50
335
330
325
320
315
310
305
300
295
–25
25
75
125
FIGURE 1 CIRCUIT
V
CC
= 3.3V
V
BAT
= 3.3V
V
IN
(V)
2.5
V
O
3420 G02
4.0
3.5
3.0
5.5
5.0
4.5
6.0
FIGURE 1 CIRCUIT
V
CC
= V
IN
V
BAT
= V
IN
T
A
= 25
°
C
335
330
325
320
315
310
305
300
295
V
BAT
(V)
2
T
3420 G03
4
5
3
6
10
8
6
4
2
0
V
CHARGED
FROM
50V TO 320V
T
A
= 25
°
C
FIGURE 1 CIRCUIT
UNLESS OTHERWISE
NOTED.
C
OUT
= 220
μ
F
C
OUT
= 100
μ
F
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3420-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Photoflash Capacitor Chargers with Automatic Refresh |
| LT3420EDD#PBF | 功能描述:IC PHOTOFLASH CAP CHARGER 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LT3420EDD#TR | 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Photoflash Capacitor Charger w/ Automatic Top-Off |
| LT3420EDD#TRPBF | 功能描述:IC PHOTOFLASH CAP CHARGER 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應(yīng)用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| LT3420EDD-1#PBF | 功能描述:IC PHOTOFLASH CAP CHARGER 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
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