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UC1846-SP

更新时间： 2024-11-23 12:47:15

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
15页	631K
描述
RAD-TOLERANT CLASS-V, CURRENT-MODE PWM CONTROLLER

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UC1846-SP 数据手册

UC1846-SP

www.ti.com

SLUS871B –JANUARY 2009–REVISED OCTOBER 2011

RAD-TOLERANT CLASS-V, CURRENT-MODE PWM CONTROLLER

Check for Samples: UC1846-SP

FEATURES

FK PACKAGE

(TOP VIEW)

•

QML-V Qualified, SMD 5962-86806

(1)

Rad-Tolerant: 30 kRad (Si) TID

Automatic Feed-Forward Compensation

Programmable Pulse-by-Pulse Current

Limiting

•

Automatic Symmetry Correction in Push-Pull

Configuration

20 19

B Out

V_C

C/S–

C/S+

•

Enhanced Load Response Characteristics

Parallel-Operation Capability for Modular

Power Systems

Gnd

E/A+

E/A–

14 A Out

9 10 11 12 13

•

Differential Current-Sense Amplifier With Wide

Common-Mode Range

•

Double-Pulse Suppression

500-mA (Peak) Totem-pole Outputs

±1% Bandgap Reference

Undervoltage Lockout

Soft-Start Capability

J OR W PACKAGE

(TOP VIEW)

Shutdown Terminal

C/L SS

Shutdown

V_IN

500-kHz Operation

V_REF

C/S–

C/S+

E/A+

E/A–

Comp

C_T

B Out

V_C

12 Gnd

A Out

Sync

R_T

(1) Radiation tolerance is a typical value based upon initial device

qualification with dose rate = 10 mrad/sec. Radiation Lot

Acceptance Testing is available - contact factory for details.

DESCRIPTION

The UC1846 control devices provide all of the necessary features to implement fixed frequency, current mode

control schemes while maintaining a minimum external parts count. The superior performance of this technique

can be measured in improved line regulation, enhanced load response characteristics, and a simpler,

easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability,

automatic symmetry correction for push-pull converters, and the ability to parallel “power modules" while

maintaining equal current sharing.

Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start

capability. A shutdown function is also available which can initiate either a complete shutdown with automatic

restart or latch the supply off.

Other features include fully latched operation, double-pulse suppression, deadline adjust capability, a ±1%

trimmed bandgap reference, and low outputs in the OFF state.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...15

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与UC1846-SP相关器件

型号	品牌	获取价格	描述	数据表
UC1846-SP_16	TI	获取价格	Class-V, Radiation Hardened PWM Controller
UC1846-SPRHA	TI	获取价格	Class-V, Radiation Hardened PWM Controller
UC1846VTD1	TI	获取价格	DIE 中的航天级、40V 输入、1.5A 双路输出 500kHz PWM 控制器 \| T
UC1846VTD2	TI	获取价格	DIE 中的航天级、40V 输入、1.5A 双路输出 500kHz PWM 控制器 \| T
UC1847	TI	获取价格	Current Mode PWM Controller
UC1847DW	TI	获取价格	Current Mode PWM Controller
UC1847J	Linear	获取价格	IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,DIP,16PIN,CERAMIC, Switching Regulator or Contr
UC1847J	TI	获取价格	Current Mode PWM Controller
UC1847J883B	TI	获取价格	Current Mode PWM Controller
UC1847L	TI	获取价格	Current Mode PWM Controller

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