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參數(shù)資料
| 型號： | LTC2913HMS-1 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 187K |
| 代理商： | LTC2913HMS-1 |
LTC2913
6
2913fb
PIN FUNCTIONS
TMR (Pin 9): Reset Delay Timer. Attach an external capacitor
(CTMR) of at least 10pF to GND to set a reset delay time
of 9ms/nF. A 1nF capacitor will generate an 8.5ms reset
delay time. Tie TMR to VCC to bypass timer.
UV (Pin 7): Undervoltage Logic Output. Asserts low when
either VH input voltage is below threshold. Held low for a
programmed delay time after both VH inputs are valid. UV
has a weak pull-up to VCC and may be pulled above VCC
using an external pull-up. Leave UV open if unused.
VCC (Pin 10): Supply Voltage. Bypass this pin to GND with
a 0.1μF (or greater) capacitor. Operates as a direct supply
input for voltages up to 6V. Operates as a shunt regulator for
supply voltages greater than 6V and must have a resistance
between the pin and the supply to limit input current to no
greater than 10mA. When used without a current-limiting
resistance, VCC voltage must not exceed 6V.
VH1/VH2 (Pin 1/Pin 3): Voltage High Inputs 1 and 2. When
the voltage on this pin is below 0.5V, an undervoltage
condition is triggered. Tie pin to VCC if unused.
VL1/VL2 (Pin 2/Pin 4): Voltage Low Inputs 1 and 2. When
the voltage on this pin is above 0.5V, an overvoltage condi-
tion is triggered. Tie pin to GND if unused.
0.5V
+
–
4
VL2
3
+
–
VH2
+
–
2
VL1
1
+
–
VH1
+
–
UVLO
2V
VCC
+
–
1V
VCC
OV PULSE
GENERATOR
DISABLE
OV LATCH
CLEAR/BYPASS
LTC2913-1
TMR
VCC
9
OV
6
LATCH
8
+
–
1V
2μA
DIS
8
GND
2913 BD
5
10
UV PULSE
GENERATOR
OSCILLATOR
VCC
400k
UV
7
400k
LTC2913-2
BLOCK DIAGRAM
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| LTC2913CMS-1 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC2913IDD-1#TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC2913HDD-2 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC2913HMS-2#TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC2913CDD-1#TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
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