参数资料
型号: TC1277-5ENB713
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
封装: SOT-23B, 3 PIN
文件页数: 1/6页
文件大小: 60K
代理商: TC1277-5ENB713
TC1275
TC1276
TC1277
TC1275/6/7-1 9/9/99 TelCom reserves the right to make changes in the circuitry and specifications of its devices.
3-PIN RESET MONITORS FOR 3.3V SYSTEMS
FEATURES
s
Precision VCC Monitor for 3.3V Systems
System Supplies
s
100 msec Guaranteed Minimum RESET, RESET
Output Duration
s
Output Guaranteed to VCC = 1.2V
s
VCC Transient Immunity
s
3-Pin SOT-23B Package
s
No External Components
TYPICAL APPLICATIONS
s
Computers
s
Embedded Systems
s
Battery Powered Equipment
s
Critical
P Power Supply Monitoring
GENERAL DESCRIPTION
The TC1275, TC1276 and TC1277 are cost-effective
system supervisor circuits designed to monitor VCC in digital
systems and provide a reset signal to the host processor
when necessary. No external components are required.
The reset output is driven active within 20
sec of VCC
falling through the reset voltage threshold. Reset is main-
tained active for a minimum of 100msec after VCC rises
above the reset threshold. The TC1277 has an active-high
RESET output while the TC1275 and TC1276 have an
active-low RESET output. The TC1275 and TC1277 each
have a complimentary output while the TC1276 has an open
drain output. The output of the TC1275 and TC1276 is
guaranteed valid down to VCC = 1.2V. The TC1277 is
guaranteed valid down to VCC = 1.8V. All three devices are
available in a 3-Pin SOT-23B package.
The TC1275/6/7 are optimized to reject fast transient
glitches on the VCC line.
TYPICAL OPERATING CIRCUIT
ORDERING INFORMATION
Part No.
Order
Package
Temp. Range
TC1275-xENB
Complimentary
3-Pin SOT-23B – 40
°C to +85°C
TC1276-xENB
Open Drain
3-Pin SOT-23B – 40
°C to +85°C
TC1277-xENB
Complimentary
3-Pin SOT-23B – 40
°C to +85°C
NOTE: The "x" denotes a suffix for VCC threshold - see table below.
PIN CONFIGURATION
Suffix
Reset VCC Threshold (V)
5
3.06
10
2.88
20
2.55
TC1275
VCC
2
1
3
VCC
RESET
INPUT
GND
PROCESSOR
VCC
RESET **(RESET)
GND
TC1275-xENB
TC1276-xENB
TC1277-xENB
1
2
3
*3-Pin SOT-23B
NOTES: *3-Pin SOT-23B is equivalent to JEDEC TO-236
** () is for TC1277
相关PDF资料
PDF描述
TC1277-10ENB713 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC1277-15ENB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC1279-5ENBTR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC1278-5ENBTR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC1278-15ENBTR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
相关代理商/技术参数
参数描述
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