UCC2913

更新时间： 2024-11-10 22:52:43

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
9页	125K
描述
Negative Voltage Hot Swap Power Manager

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中文翻译

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数据手册
替代型号

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UCC2913 数据手册

UCC1913

UCC2913

UCC3913

Negative Voltage Hot Swap Power Manager

FEATURES

DESCRIPTION

• Precision Fault Threshold

The UCC1913 family of negative voltage circuit breakers provides com-

plete power management, hot swap, and fault handling capability. The IC is

referenced to the negative input voltage and is driven through an external

resistor connected to ground, which is essentially a current drive as op-

posed to the traditional voltage drive. The on-board 10V shunt regulator

protects the IC from excess voltage and serves as a reference for program-

ming the maximum allowable output sourcing current during a fault. All

control and housekeeping functions are integrated, and externally program-

mable. These include the fault current level, maximum output sourcing cur-

rent, maximum fault time, soft start time, and average power limiting. In the

event of a constant fault, the internal timer will limit the on-time from less

than 0.1% to a maximum of 3%. The duty cycle modulates depending on

the current into the PL pin, which is a function of the voltage across the

FET, and will limit average power dissipation in the FET. The fault level is

fixed at 50mV across the current sense amplifier to minimize total dropout.

The fault current level is set with an external current sense resistor. The

maximum allowable sourcing current is programmed with a voltage divider

from VDD to generate a fixed voltage on the IMAX pin. The current level,

• Programmable Average Power

Limiting

• Programmable Linear Current Control

• Programmable

• Overcurrent Limit

• Programmable Fault Time

• Fault Output Indication

• Shutdown Control

• Undervoltage Lockout

• 8-Pin SOIC

when the output appears as a current source, is equal to V

. If

IMAX/ SENSE

desired, a controlled current startup can be programmed with a capacitor

on the IMAX pin.

When the output current is below the fault level, the output device is

switched on. When the output current exceeds the fault level, but is less

than the maximum sourcing level programmed by the IMAX pin, the output

remains switched on, and the fault timer starts charging CT. Once CT

charges to 2.5V, the output device is turned off and performs a retry some

time later. When the output current reaches the maximum sourcing current

level, the output appears as a current source, limiting the output current to

the set value defined by IMAX.

Other features of the UCC1913 family include undervoltage lockout, and

8-pin small outline (SOIC) and Dual-In-Line (DIL) packages.

BLOCK DIAGRAM

VDD

IMAX

UVLO

LOGIC

SUPPLY

5.0V

REF

UNDERVOLTAGE

9.5V SHUNT REGULATOR

0.2V

5.0V

OUT

LINEAR

CURRENT

AMPLIFIER

50Ω

OVERLOAD COMPARATOR

DISABLE

SD/FLT

SENSE

VSS

ON-TIME

CONTROL

50mV

SOURCE

ONLY

20µA

OVERCURRENT

COMPARATOR

UDG-99001

SLUS274 - J ANUARY 1999

12 3 4 5 6 7...9

中文翻译

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UCC2913 替代型号

型号	品牌	替代类型	描述	数据表
UCC3913	TI	功能相似	Negative Voltage Hot Swap Power Manager

与UCC2913相关器件

型号	品牌	获取价格	描述	数据表
UCC2913D	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER
UCC2913DG4	TI	获取价格	具有工业温度范围的浮动负电压热插拔控制器，带电流限制功能 \| D \| 8 \| -40 to
UCC2913DR	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, PLASTIC, MS-012AA, SOIC-8
UCC2913DTR	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER
UCC2913DTRG4	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER
UCC2913J	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER
UCC2913N	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER
UCC2913NG4	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, GREEN, PLASTIC, DIP-8
UCC2913NR	TI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, PDIP-8, Power Management Circuit
UCC2915	TI	获取价格	15-V PROGRAMMABLE HOT SWAP POWER MANAGER

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