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TC170COETR PDF预览

TC170COETR

更新时间: 2024-09-16 19:49:35
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关光电二极管
页数 文件大小 规格书
16页 472K
描述
0.3 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16

TC170COETR 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP16,.4
针数:16Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.72模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:16 V最小输入电压:8 V
标称输入电压:16 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:10.295 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:70 °C
最低工作温度:最大输出电流:0.01 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:2.64 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:200 kHz
技术:CMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:7.495 mm
Base Number Matches:1

TC170COETR 数据手册

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TC170  
CMOS Current Mode PWM Controller  
Features  
General Description  
• Low Supply Current With CMOS Technology:  
3.8mA Max  
The TC170 offers maximum supply current of 3.8mA.  
Bipolar current-mode control integrated circuits require  
five times more operating current.  
• Internal Reference: 5.1V  
• Fast Rise/Fall Times (C = 1000pF): 50nsec  
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.  
L
• Dual Push-Pull Outputs  
• Direct-Power MOSFET Drive  
• High Totem-Pole Output Drive: 300mA  
• Differential Current-Sense Amplifier  
• Programmable Current Limit  
• Soft-Start Operation  
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.  
• Double-Pulse Suppression  
• Undervoltage Lockout  
• Wide Supply Voltage Operation: 8V to 16V  
• High Frequency Operation: 200kHz  
• Available with Low OFF State Outputs  
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.  
• Low Power, Pin-Compatible Replacement for  
UC3846  
Applications  
Other advantages inherent in current-mode control  
include superior line and load regulation and automatic  
symmetry correction in push-pull converters.  
• Switching Power Supplies  
• DC/DC Converters  
• Motor Control  
Device Selection Table  
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  
Package Type  
16-Pin PDIP (Narrow)  
16-Pin SOIC (Wide)  
SOFT START/  
SOFT START/  
SHDN  
16  
15  
14  
1
2
3
4
5
6
7
8
16  
15  
SHDN  
I
I
LIM  
LIM  
V
OUT  
V
OUT  
IN  
V
REF  
IN  
REF  
IN  
– I  
IN  
I  
SENSE  
OUTPUT B  
SENSE  
SENSE  
+ I  
IN  
+ I  
IN  
13  
12  
11  
10  
V
SENSE  
DD  
DD  
TC170COE  
TC170CPE  
+ ERROR AMP IN  
ERROR AMP IN  
CMPTR  
+ ERROR AMP IN  
ERROR AMP IN  
CMPTR  
GND  
OUTPUT A  
SYNC  
C
O
R
O
C
O
R
O
9
9
NOTE: Outputs LOW in "OFF" state.  
2002 Microchip Technology Inc.  
DS21395B-page 1  

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