参数资料
型号: LT3485EDD-0#TR
厂商: LINEAR TECHNOLOGY CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO10
封装: 3 X 3 MM, PLASTIC, MO-229WEED-2, DFN-10
文件页数: 5/20页
文件大小: 339K
代理商: LT3485EDD-0#TR
LT3485-0/LT3485-1/
LT3485-2/LT3485-3
13
34850123fb
APPLICATIO S I FOR ATIO
WU
U
Table 4. Recommended IGBTs
DRIVE
BREAKDOWN
COLLECTOR
VOLTAGE
CURRENT
PART
(V)
(PULSED) (A)
VENDOR
CY25BAH-8F
2.5
400
150
Renesas
CY25BAJ-8F
4
400
150
(408) 382-7500
www.renesas.com
GT8G133
4
400
150
Toshiba Semiconductor
(949) 623-2900
www.semicon.toshiba.co.jp/eng/
the capacitance closest to the terminal goes low but the
capacitance further from the terminal remains high. This
causes a small portion of the device to handle the full 100A
of current, which quickly destroys the device. The pull
down circuitry needs to pull down slower than the internal
RC time constant in the gate of the IGBT. This is easily
accomplished with a resistor in series with the IGBT drive,
which is integrated into the LT3485.
The LT3485’s integrated drive circuit is independent of the
charging function. The IGBT section draws its power from
the IGBTPWR pin. The rise and fall times are measured
using a 4000pF output capacitor. The typical 10% to 90%
rise time is 270ns. The drive pulls high to IGBTPWR. The
typical 90% to 10% fall time is 180ns. The drive pulls
down to 300mV. The IGBT driver pulls a peak of 150mA
when driving an IGBT and 2mA of quiescent current. In the
low state, the IGBT’s quiescent current is less than 0.1
A.
Table 4 is a list of recommended IGBT devices for strobe
applications. These three devices are all packaged in
8-lead TSSOP packages.
VOUT Monitor
The voltage output monitor is a new feature to monitor the
progress of capacitor charging with a microcontroller.
The monitor uses the flyback waveform to output a
voltage proportional to the output of the flyback converter.
The output monitor voltage range for the pin is 0V to 1V.
The 1V output corresponds with the charge cycle termi-
nating and the DONE pin going low. The voltage output
monitor is only functional when the circuit is charging
(DONE and CHARGE are high.)
GATE
EMITTER
3485 F06
Figure 6. IGBT Gate
相关PDF资料
PDF描述
LT3493EDCB-3#TR 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6
LT3494EDDB#PBF 0.25 A SWITCHING REGULATOR, PDSO8
LT3494EDDB 0.25 A SWITCHING REGULATOR, PDSO8
LT3502AEDC#PBF 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8
LT3502AIDC#PBF 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8
相关代理商/技术参数
参数描述
LT3485EDD-1 制造商:LINER 制造商全称:Linear Technology 功能描述:Photoflash Capacitor Chargers with Output Voltage Monitor and Integrated IGBT Drive
LT3485EDD-1#PBF 功能描述:IC CHARGER PHOTOFLASH 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP(4x4) 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR
LT3485EDD-1#TRPBF 功能描述:IC CHARGER PHOTOFLASH 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP(4x4) 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR
LT3485EDD-2 制造商:LINER 制造商全称:Linear Technology 功能描述:Photoflash Capacitor Chargers with Output Voltage Monitor and Integrated IGBT Drive
LT3485EDD-2#PBF 功能描述:IC CHARGER PHOTOFLASH 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP(4x4) 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR