Datasheet > PT7708

PT7708

更新时间： 2024-11-26 22:26:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
4页	124K
描述
20 Amp Programmable Next Generation Big Hammer

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

PT7708 数据手册

PT7709—5V

20 Amp Programmable

Next Generation “Big Hammer”

SLTS084

(Revised 6/30/2000)

Description

The PT7709 niesxt a generation

“Big Hammer”h,igh-performance

Integrated Switching Regulator (ISR),

mable from 1.3V to 3.5V with

which is made available in Power

input, which cisompatible with the

voltage µPs, and bus drivers.

The PT770o9utput is program-

5-bit

Trends’ aluminum27-pin SIP acpk-

age.

popular PT7705 with 20A of output

Intel PentiumProcessor. differential

remote sensealsois provided to com-

pensate for voltage dtwroepen bethe

ISR and load.

The PT7709 improves on th

current and short circuit protection.

The PT7709 is suitaebxleist- for

ing 5V system designresquirtehat

power fothre latest high-speed, low-

Only 30µ3F of output capacitance

are required for proper operation.

Pin-Out Information

Pin Function

Standard Application

Pin Function

10 V_in

11 V_in

12 Remote Sense Gnd

13 GND

14GND

VID0

VID1

VID2

19 GND

20 V_out

21 V_out

22 V_out

23 V_out

PROGRAMMING PINS

VID0

REMOTE SENSE (+)

VID1

VID2

VID3

VID4

(4)

4VID3

SNS(+)

VID4

VID0

V_{O U T}

STBY* - Stand-by

7-11

20-25

Vin

V_IN

PT7709

VID4

V_in

24V

out

15 GND

16 GND

17 GND

18 GND

Synch

Out

STBY

GND

13-19

SNS(-)

25 V_out

LOAD

C_IN

C_{O U T}

SYNC OUT

GND

V_in

26 Remote Sense

out

GND

)

27 Sync Out

REMOTE SENSE

(

STBY*

For STBY* pin:

open = output enabled

ground = output disabled.

= Required 1500µF electrolytic

= Required 330µF electrolytic

out

L1 = Optional 1µH input choke

Specifications

PT7709 SERIES

Typ

Characteristics

(T_a= 25°C unless noted)

Symbols

Conditions

Min

Max

Units

(1)

0.1⁽¹⁾

Output Current

I_o

T_a= +60°C, 200 LFM, pkg N

T_a= +25°C, natural convection

0.1

—

Input Voltage Range

V_in

0.1A ≤ I_o≤ 20A

4.5

—

5.5

Output Voltage Tolerance

∆V_o

V_in= +5V, I_o= 20A

V^o-0.03

—

Vo+0.03

0°C ≤ T_a≤ +65°C

Line Regulation

Load Regulation

V_oRipple/Noise

Reg_line

Reg_load

V_n

4.5V ≤ V_in≤ 5.5V, I_o= 20A

V_in= +5V, 0.1 ≤ I_o≤ 20A

V_in= +5V, I_o= 20A

—

Transient Response

with C_out= 330µF

t_tr

I_ostep between 10A and 20A

V_oover/undershoot

—

µSec

V_os

100

Efficiency

V_in= +5V, I_o= 10A

V_o= 3.3V

V_o= 2.5V

V_o= 1.8V

—

V_in= +5V, I_o= 20A

V_o= 3.3V

V_o= 2.5V

V_o= 1.8V

—

Switching Frequency

Absolute Maximum

ƒ_o

4.5V ≤ V_in≤ 5.5V

0.1A ≤ I_o≤ 20A

300

350

—

400

kHz

°C

(2)

T_a

Over V_{in and}I_oRanges

–40

+85 ⁽³⁾

Operating Temperature Range

Storage Temperature

Mechanical Shock

T_s

—

–40

—

+125

°C

Per Mil-STD-883D, Method 2002.3

1 msec, Half Sine, mounted to a fixture

—

500

—

G’s

Mechanical Vibration

Per Mil-STD-883D, Method 2007.2,

20-2000 Hz, Soldered in a PC board

G’s

Weight

—

Vertical/Horizontal

31/41

grams

Notes: (1) ISR-will operate down to no load with reduced specifications.

(2) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors.

(3) See Safe Operating Area curves or contact the factory for the appropriate derating.

(4) If the Remote Sense Ground is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy.

External Capacitors: The PT7709 requires a minimum output capacitance of 330µF for proper operation. The PT7709 also requires an input capacitance of 1500µF,

which must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For more

information refer to the application note regarding capacitor selection for this product.

Input Filter: An input filter inductor is optional for most applications. The inductor must be sized to handle 20ADC with a typical value of 1µH.

For technical support and more information, see inside back cover or visit www.ti.com/powertrends

12 3 4

中文翻译

下载PDF

与PT7708相关器件

型号	品牌	获取价格	描述	数据表
PT7708C	TI	获取价格	20A SWITCHING REGULATOR, 400kHz SWITCHING FREQ-MAX, MSMA27, HORIZONTAL SURFACE MOUNT PACKA
PT7708N	TI	获取价格	20A SWITCHING REGULATOR, 400kHz SWITCHING FREQ-MAX, MSMA27, VERTICAL MOUNT PACKAGE-27
PT7709	TI	获取价格	20 Amp Programmable Next Generation Big Hammer
PT-7710	MOXA	获取价格	Gigabit modular managed rackmount Ethernet switches
PT-7710-D-HV	MOXA	获取价格	Gigabit modular managed rackmount Ethernet switches
PT-7710-D-LV	MOXA	获取价格	Gigabit modular managed rackmount Ethernet switches
PT-7710-F-HV	MOXA	获取价格	Gigabit modular managed rackmount Ethernet switches
PT-7710-F-LV	MOXA	获取价格	Gigabit modular managed rackmount Ethernet switches
PT7711	TI	获取价格	20-A Programmable Integrated Switching Regulator
PT7711A	TI	获取价格	20-A Programmable Integrated Switching Regulator

与PT7708相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

46
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

63
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

60

产品中心

服务支持

精选活动

关于我们

帮助中心

PT7708

PT7708 数据手册

与PT7708相关器件

与PT7708相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

PT7708

PT7708 数据手册

与PT7708相关器件

与PT7708相关文章

您还可以找

您在本页遇到什么问题？