- 您现在的位置：买卖IC网 > PDF目录79811 > LTC2911CTS8-4#TRM (LINEAR TECHNOLOGY CORP) POWER SUPPLY SUPPORT CKT, PDSO8 PDF资料下载
参数资料
| 型号： | LTC2911CTS8-4#TRM |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | PLASTIC, MO-193, TSOT-23, 8 PIN |
| 文件页数： | 6/20页 |
| 文件大小： | 245K |
| 代理商： | LTC2911CTS8-4#TRM |
LTC2911
14
2911f
APPLICATIONS INFORMATION
Reset Latch Mode
At any time, the TMR pin can be pulled low to latch the
RST pin status, overriding the reset operation. This feature
is useful when testing a system at supply voltages that
might otherwise cause the RST pin to assert.
If the RST pin is unasserted (high) before the latch is
enabled (by pulling the TMR pin low), RST will remain
unasserted after the TMR pin is released. This is true
provided that all reset monitor inputs are valid when TMR
releases, regardless of their state while the TMR pin was
low. However, if RST was unasserted before TMR was
pulled low, and now one of the inputs is invalid when TMR
is released, RST will assert after a tPL,LRpropagation delay
(see Figure 6a). Conversely, if RST was asserted (low)
LATCH RELEASE
TMR
ADJ, V1, V2
t > tSU,MON
VTMR(LATCH)
VRTX
VTMR(LATCH) + VTMR
1.0V
2911 F06a
tP,LR
RST
Figure 6a. Input Toggled Low While Timer Latched.
RST Goes Low tP,LR After Latch Release
TMR
LATCH RELEASE
VRTX
1.0V
2911 F06b
t > tSU,MON
tRST
ADJ, V1, V2
RST
VTMR(LATCH)
VTMR(LATCH) +
VTMR
Figure 6b. Input Toggled High While Timer Latched.
RST Goes High tRST After Latch Release
TMR
tRST
1.0V
2911 F06c
t < tRST
VTRM(LATCH)
VRTX
RST
ADJ, V1, V2
LATCH RELEASE
VTMR(LATCH) +
VTMR
Figure 6c. Timer Latched Before Timeout. After Latch Release,
RST Stays Low for a Full Timeout Before Going High
TMR
VTRX
1.0V
t > tHD,MON
t > tSU,MON
2911 F06d
NO
RECOUNTING
tRST
t > tRST
ADJ, V1, V2
RST
VTRM(LATCH)
LATCH RELEASE
MARGINING
VTMR(LATCH)
+
VTMR
Figure 6d. Timer Latched After Timeout and RST High.
RST Stays High After Margining if Inputs are Restored
Before Release
before TMR was pulled low, and all inputs are valid when
TMR is released, RST will deassert (go high) after a tRST
delay (see Figures 6b and 6c). The RST pin remains as-
serted for a full tRST timeout after the TMR pin is released,
regardless of the state of the tRST timer before the latch
was enabled. The reset latch mode is useful for perform-
ing supply margining tests without resetting the system
(see Figure 6d).
At least 2.9A of pull-up or pull-down current is required
to hold the TMR pin high or low to configure the internal
timer or reset latch mode. However, during the timer mode
transition, 100A will be required to switch the TMR float-
ing state to ground or V1. Connecting the TMR pin to any
voltage other than ground or V1 may have unpredictable
results.
相关PDF资料 |
PDF描述 |
|---|---|
| LTI2911IDDB-3#TR | POWER SUPPLY SUPPORT CKT, PDSO8 |
| LX1555IM | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| LX1555CPW | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20 |
| LM385BZ-1.2RM | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PBCY3 |
| LFFSWG-TTL-50F | SQUARE, 0.05 MHz, WAVEFORM GENERATION, PDIP4 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2911CTS8-5#TRMPBF | 功能描述:IC TRPL SUPPLY MONITOR TSOT-23 RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 其它有关文件:STM6717 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:2 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:1.11V，3.075V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:Digi-Reel® 产品目录页面:1194 (CN2011-ZH PDF) 其它名称:497-7019-6 |
| LTC2911CTS8-5#TRMPBF | 制造商:Linear Technology 功能描述:IC SUPERVISORY 30 3.3V 8-TSOT-23 制造商:Linear Technology 功能描述:IC, SUPERVISORY, 30A, 3.3V, 8-TSOT-23 |
| LTC2911CTS8-5#TRPBF | 功能描述:IC TRPL SUPPLY MONITOR TSOT-23 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 |
| LTC2911HDDB-1#TRMPBF | 功能描述:IC TRPL SUPPLY MONITOR 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| LTC2911HDDB-1#TRPBF | 功能描述:IC TRPL SUPPLY MONITOR 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
发布紧急采购，3分钟左右您将得到回复。