LTC7891集成电路(IC)DCDC开关稳压器规格书PDF中文资料
厂商型号 |
LTC7891 |
参数属性 | LTC7891 包装为卷带(TR);类别为集成电路(IC) > DC DC 开关稳压器;产品描述:LOW IQ 100V SYNC BUCK CONTROLLER |
功能描述 | - |
文件大小 |
1.75578 Mbytes |
页面数量 |
36 页 |
生产厂商 | Analog Devices |
企业简称 |
AD【亚德诺】 |
中文名称 | 亚德诺半导体技术有限公司官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-6-7 20:00:00 |
LTC7891规格书详情
GENERAL DESCRIPTION
The LTC7891 is a high performance, step-down, dc-to-dc switching
regulator controller that drives all N-channel synchronous gallium
nitride (GaN) field effect transistor (FET) power stages from input
voltages up to 100 V. The LTC7891 solves many of the challenges
traditionally faced when using GaN FETs. The LTC7891 simplifies
the application design while requiring no protection diodes and no
other additional external components compared to a silicon metaloxide
semiconductor field effect transistor (MOSFET) solution.
The internal smart bootstrap switch prevents overcharging of the
BOOST pin to SW pin high-side driver supplies during dead times,
protecting the gate of the top GaN FET. The LTC7891 internally
optimizes the gate driver timing on both switching edges to achieve
smart near zero dead times, significantly improving efficiency and
allowing for high frequency operation, even at high input voltages.
Alternatively, the user can adjust the dead times with external
resistors for margin or to tailor the application.
The gate drive voltage of the LTC7891 can be precisely adjusted
from 4 V to 5.5 V to optimize performance, and to allow the use of
different GaN FETs, or even logic level MOSFETs.
Note that throughout this data sheet, multifunction pins, such as
PLLIN/SPREAD, are referred to either by the entire pin name or
by a single function of the pin, for example, PLLIN, when only that
function is relevant.
FEATURES
► GaN drive technology fully optimized for GaN FETs
► Wide VIN range: 4 V to 100 V
► Wide output voltage range: 0.8 V ≤ VOUT ≤ 60 V
► No catch, clamp, or bootstrap diodes needed
► Internal smart bootstrap switches prevent overcharging of highside
driver supplies
► Internally optimized, smart near zero dead times or resistor
adjustable dead times
► Split output gate drivers for adjustable turn on and turn off driver
strengths
► Accurate adjustable driver voltage and UVLO
► Low operating IQ: 5 μA (48 VIN to 5 VOUT)
► Programmable frequency (100 kHz to 3 MHz)
► Phase lockable frequency (100 kHz to 3 MHz)
► Spread spectrum frequency modulation
► 28-lead (4 mm × 5 mm) side wettable QFN package
APPLICATIONS
► Industrial power systems
► Military avionics and medical systems
► Telecommunications power systems
LTC7891属于集成电路(IC) > DC DC 开关稳压器。亚德诺半导体技术有限公司制造生产的LTC7891稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC(电源管理集成电路)产品族中的产品是元器件级设备,用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件,设备提供的电力会通过该元件。
产品属性
- 产品编号:
LTC7891RUFDM#TRPBF
- 制造商:
Analog Devices Inc.
- 类别:
集成电路(IC) > DC DC 开关稳压器
- 包装:
卷带(TR)
- 描述:
LOW IQ 100V SYNC BUCK CONTROLLER
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
LINEAR/凌特 |
22+ |
SOP-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
LITHIUM |
21+ |
DIP4 |
35200 |
一级代理分销/放心采购 |
询价 | ||
ADI(亚德诺) |
23+ |
NA/ |
8735 |
原厂直销,现货供应,账期支持! |
询价 | ||
Eagle |
20+ |
原装 |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
lt |
23+ |
DIP |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
LINEAR |
2015+ |
DIP/SMD |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
LITHIUM |
22+23+ |
DIP4 |
36055 |
绝对原装正品全新进口深圳现货 |
询价 | ||
LINAER |
22+ |
SOP |
3000 |
原装正品,支持实单 |
询价 | ||
LINEAR/凌特 |
22+ |
SOP-8 |
9845 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
lt |
23+ |
DIP |
3600 |
绝对全新原装!现货!特价!请放心订购! |
询价 |