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参数资料
| 型号： | LTC2935ITS8-4#TRMPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, MO-193, TSOT-23, 8 PIN |
| 文件页数： | 8/12页 |
| 文件大小： | 134K |
| 代理商： | LTC2935ITS8-4#TRMPBF |
LTC2935
5
2935fa
Supply Current vs S0, S1, S2
Input Voltage
Supply Current vs MR Input Voltage
PIN FUNCTIONS
Exposed Pad (DFN Only): Exposed Pad may be left oating
or connected to device ground.
GND: Device ground.
MR: Manual Reset Input. Attach a pushbutton switch
between this input and ground. A logic low on this input
pulls RST low. When the MR input returns to logic high,
RST returns high after 200ms. Tie to VCC if unused.
PFO: Power-Fail Output. PFO pulls low when VCC falls
below the power-fail threshold. The power-fail thresh-
old is above the congured falling reset threshold by a
pre-determined margin. PFO is released when VCC rises
above the power-fail threshold by 2.5%. PFO is available
with open-drain (LTC2935-1/LTC2935-3) or active pull-up
(LTC2935-2/LTC2935-4) outputs. Leave open if unused.
RST: Reset Output. RST pulls low when VCCfallsbelowthe
reset threshold. RST is released 200ms after VCC exceeds
the reset threshold plus 5% hysteresis. RST is available
with open-drain (LTC2935-1/LTC2935-3) or active pull-up
(LTC2935-2/LTC2935-4) outputs. Leave open if unused.
S2, S1, S0: Threshold Selection Inputs. Tie to GND or
VCC for required reset threshold. See the Falling Threshold
Selection Table on page 1 for settings.
VCC: Power Supply and Monitored Voltage Input. Bypass
VCC with a 0.1μF capacitor to GND.
TYPICAL PERFORMANCE CHARACTERISTICS
S0, S1, S2 INPUT VOLTAGE (V)
0
I CC
(μA)
200
3.5
150
100
12
0.5
1.5
2.5
3
4
50
0
250
2935 G07
VCC = 3.6V
MR INPUT VOLTAGE (V)
0
I CC
(μA)
4
3.5
3
2
12
0.5
1.5
2.5
3
4
1
0
5
2935 G08
VCC = 3.6V
TA = 25°C, unless otherwise noted.
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