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參數資料
型號: TC170COETR
元件分類: 穩壓器
英文描述: SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16
封裝: SOIC-16
文件頁數: 1/16頁
文件大?。?/td> 304K
代理商: TC170COETR
2005 Microchip Technology Inc.
DS21395C-page 1
TC170
Features
Low Supply Current With CMOS Technology:
3.8mA Max
Internal Reference: 5.1V
Fast Rise/Fall Times (CL = 1000pF): 50nsec
Dual Push-Pull Outputs
Direct-Power MOSFET Drive
High Totem-Pole Output Drive: 300mA
Differential Current-Sense Amplifier
Programmable Current Limit
Soft-Start Operation
Double-Pulse Suppression
Undervoltage Lockout
Wide Supply Voltage Operation: 8V to 16V
High Frequency Operation: 200kHz
Available with Low OFF State Outputs
Low Power, Pin-Compatible Replacement for
UC3846
Applications
Switching Power Supplies
DC/DC Converters
Motor Control
Device Selection Table
General Description
The TC170 offers maximum supply current of 3.8mA.
Bipolar current-mode control integrated circuits require
five times more operating current.
The dual totem-pole CMOS outputs drive power
MOSFETs or bipolar transistors. The 50nsec typical
output rise and fall times (1000pF capacitive loads)
minimize MOSFET power dissipation. Output peak
current is 300mA.
The TC170 contains a full array of system-protection
circuits (see Features Section).
Current-mode control lets users parallel power supply
modules. Two or more TC170 controllers can be slaved
together for parallel operation. Circuits can operate
from a master TC170 internal oscillator or an external
system oscillator.
The TC170 operates from an 8V to 16V power supply.
An internal 2%, 5.1V reference minimizes external
component count. The TC170 is pin compatible with
the
Unitrode
UC1846/UC2846/UC3846
bipolar
controller.
Other advantages inherent in current-mode control
include superior line and load regulation and automatic
symmetry correction in push-pull converters.
Package Type
Part Number
Package
Temp. Range
TC170COE
16-Pin SOIC (Wide)
0°C to +70°C
TC170CPE
16-Pin PDIP (Narrow)
0°C to +70°C
TC170CPE
SHDN
DD
SOFT START/
ILIM
VREFOUT
– I SENSE IN
+ I SENSE IN
+ ERROR AMP IN
CMPTR
RO
– ERROR AMP IN
NOTE: Outputs LOW in "OFF" state.
IN
CO
1
2
3
4
16
15
5
6
7
9
8
1
2
3
4
15
16
14
13
5
6
7
12
11
10
9
8
TC170COE
SOFT START/
ILIM
VREFOUT
– I SENSE IN
+ I SENSE IN
+ ERROR AMP IN
CMPTR
– ERROR AMP IN
CO
SHDN
VDD
OUTPUT B
GND
OUTPUT A
SYNC
RO
VIN
16-Pin SOIC (Wide)
16-Pin PDIP (Narrow)
CMOS Current Mode PWM Controller
Obsolete Device
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相關代理商/技術參數
參數描述
TC170CPE 制造商:TELCOM 制造商全稱:TelCom Semiconductor, Inc 功能描述:CMOS CURRENT MODE PWM CONTROLLER
TC170EI10 功能描述:COVER RCWAY TC170 LG IVR10' RoHS:否 類別:線纜,導線 - 管理 >> 線槽,走線系統 - 附件 系列:Pan-Way™ 標準包裝:1 系列:PANDUCT® 附件類型:蓋 - 線管 適用于相關產品:Panduit 導管 H 型 高度:- 寬:4"(101.6mm) 長度:36.0"(914.4mm) 顏色:黑 其它名稱:298-HC4BL36
TC170EI6 功能描述:COVER RCWAY TC170 LG IVR 6' RoHS:否 類別:線纜,導線 - 管理 >> 線槽,走線系統 - 附件 系列:Pan-Way™ 標準包裝:1 系列:PANDUCT® 附件類型:蓋 - 線管 適用于相關產品:Panduit 導管 H 型 高度:- 寬:4"(101.6mm) 長度:36.0"(914.4mm) 顏色:黑 其它名稱:298-HC4BL36
TC170EI8 功能描述:COVER RCWAY TC170 LG IVR(8=8') RoHS:否 類別:線纜,導線 - 管理 >> 線槽,走線系統 - 附件 系列:Pan-Way™ 標準包裝:1 系列:PANDUCT® 附件類型:蓋 - 線管 適用于相關產品:Panduit 導管 H 型 高度:- 寬:4"(101.6mm) 長度:36.0"(914.4mm) 顏色:黑 其它名稱:298-HC4BL36
TC170IG10 功能描述:COVER RCWAY TC170 LG GY10' RoHS:否 類別:線纜,導線 - 管理 >> 線槽,走線系統 - 附件 系列:Pan-Way™ 標準包裝:1 系列:PANDUCT® 附件類型:蓋 - 線管 適用于相關產品:Panduit 導管 H 型 高度:- 寬:4"(101.6mm) 長度:36.0"(914.4mm) 顏色:黑 其它名稱:298-HC4BL36
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