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参数资料
| 型号： | LTC2904CDDB8#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 3 X 2 MM, M0-229WECD-1, PLASTIC, DFN-8 |
| 文件页数： | 14/16页 |
| 文件大小： | 179K |
| 代理商： | LTC2904CDDB8#PBF |
LTC2904/LTC2905
7
29045f
UU
U
PI FU CTIO S (TS8 Package/DDB8 Package)
V2 (Pin 1/Pin 4): Voltage Input 2. Input for V2 monitor.
Select from 3.3V, 2.5V, 1.8V, 1.5V, 1.2V or 1.0V. Refer to
Table 1 for details. The greater of V1, V2 is also the internal
supply voltage, VCC. Bypass this pin to ground with a 0.1F
(or greater) capacitor.
RST (Pin 2/Pin 3): (LTC2904 Only) Reset Logic Output.
When all voltage inputs are above the reset threshold for
at least the programmed delay time, this pin pulls low. This
pin has a weak pull-up to VCC and may be pulled above VCC
using an external pull-up.
TMR (Pin 2/Pin 3): (LTC2905 Only) Reset Delay Time
Programming Pin. Attach an external capacitor (CTMR) to
GND to set a reset delay time of 9ms/nF. Leaving the pin
open generates a minimum delay of approximately 200
s.
A 22nF capacitor will generate a 200ms reset delay time.
RST (Pin 3/Pin 2): Inverted Reset Logic Output. Pulls low
when any voltage input is below the reset threshold and is
held low for programmed delay time after all voltage
inputs are above threshold. This pin has a weak pull-up
to VCC and may be pulled above VCC using an external
pull-up.
GND (Pin 4/Pin 1, Pin 9): Ground.
TOL (Pin 5/Pin 8): Three-state Input for Supply Tolerance
Selection (5%, 7.5% or 10%). See the Applications Infor-
mation section for tolerance selection chart (Table 2).
S1 (Pin 6/Pin 7): Voltage Threshold Select Three-State
Input. Connect to V1, GND or leave unconnected in open
state (See Table 1).
S2 (Pin 7/Pin 6): The Second Voltage Threshold Select
Three-State Input. Connect to V1, GND or leave uncon-
nected in open state (See Table 1).
V1 (Pin 8/Pin 5): Voltage Input 1. Input for V1 monitor.
Select from 5V, 3.3V, or 2.5V. See Table 1 for details. The
greater of V1, V2 is also the internal supply voltage, VCC.
Bypass this pin to ground with a 0.1
F (or greater)
capacitor.
–
+
–
+
200ms
RESET PULSE
GENERATOR
THREE-STATE DECODER
RESISTOR
NETWORK
POWER
DETECT
BAND GAP
REFERENCE
VCC
LTC2904
2904 BD
S1
TOL
S2
RST
VCC
GND
V1
V2
6
A
6
A
BLOCK DIAGRA
W
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相关代理商/技术参数 |
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| LTC2904CTS8 | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 3.3V/5V 8-Pin TSOT-23 |
| LTC2904CTS8#PBF | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 1V/1.2V/1.8V/2.5V/3.3V/5V 8-Pin TSOT-23 |
| LTC2904CTS8#TR | 功能描述:IC MON DUAL SUPPLY PREC TSOT23-8 RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 监视电压数目:1 输出:开路漏极，推挽式 复位:高有效/低有效 复位超时:最小为 35 ms 电压 - 阀值:4.65V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
| LTC2904CTS8#TRM | 功能描述:IC MON DUAL SUPPLY PREC TSOT23-8 RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 监视电压数目:1 输出:开路漏极，推挽式 复位:高有效/低有效 复位超时:最小为 35 ms 电压 - 阀值:4.65V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
| LTC2904CTS8#TRMPBF | 功能描述:IC MON DUAL SUPPLY PREC TSOT23-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 监视电压数目:1 输出:开路漏极，推挽式 复位:高有效/低有效 复位超时:最小为 35 ms 电压 - 阀值:4.65V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
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