参数资料
型号: TC1271ARCVRC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
封装: LEAD FREE, PLASTIC, SOT-143, 4 PIN
文件页数: 6/40页
文件大小: 551K
代理商: TC1271ARCVRC
TC1270A/70AN/71A
DS22035B-page 14
2007 Microchip Technology Inc.
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PINOUT DESCRIPTION
Pin Number
Sym
Pin
Standard Function
TC1270A
(Push-Pull,
active low)
TC1270AN
(Open-Drain,
active low)
TC1271A
(Push-Pull,
active high)
SOT
-23-5
SOT
-14
3-4
SOT
-23-5
SOT
-23-5
SOT
-14
3-4
Type
Buffer
/
Driver
51
5
1
VSS
Power
Ground
42
—RST
OPush-
Pull
Reset output (Push Pull), active low
H = VDD > VTRIP, Reset pin is inactive
(after Reset Timer Delay completes)
L = VDD < VTRIP, Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1.
If VDD falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
—4
—RST
O
Open-
Drain
Reset output (Open-Drain), active low
Float = VDD > VTRIP, Reset pin is inactive
(after Reset Timer Delay completes)
L = VDD < VTRIP, Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1.
If VDD falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
—4
2
RST
O
Push-
Pull
Reset output (Push Pull), active high
H = VDD < VTRIP, Reset pin is active
L = VDD > VTRIP, Reset pin is inactive
(after Reset Timer Delay completes)
Goes active (High) if one of these conditions
occurs:
1.
If VDD falls below the selected Reset
voltage threshold.
2.
If the MR pin is forced low.
3.
During power-up.
Note 1:
The MR pin has an internal weak pull-up (18.5 k
Ω typical).
相关PDF资料
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TC1271ASCVCT 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
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