- 您现在的位置：买卖IC网 > PDF目录1826 > LTC1235CSW#TRPBF (Linear Technology)IC MPU SUPERVISRY CIRCUIT 16SOIC PDF资料下载
参数资料
| 型号： | LTC1235CSW#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPERVISRY CIRCUIT 16SOIC |
| 标准包装： | 1,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极，开路漏极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.65V |
| 工作温度： | 0°C ~ 70°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 |
| 包装： | 带卷 (TR) |
LTC1235
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V CC = Full Operating Range, V BATT = 2.8V, Backup = No Connection,
T A = 25°C, unless otherwise noted.
PARAMETER
RESET, RESET , WDO , LOW LINE
CONDITIONS
Output Source Current
MIN
1
TYP
3
MAX
25
UNITS
μA
Output Short Circuit Current (Note 6)
WDI Input Threshold
Output Sink Current
Logic Low
Logic High
2.0
25
0.8
mA
V
V
WDI Input Current
WDI = V OUT
WDI = 0V
l
l
–50
4
–8
50
μA
μA
Power Fail Detector
PFI Input Threshold
V CC = 5V
l
1.25
1.3
1.35
V
PFI Input Threshold PSRR
0.3
mV/V
PFI Input Current
PFO Output Voltage (Note 6)
I SINK = 3.2mA
I SOURCE = 1A
3.5
±0.01
±25
0.4
nA
V
V
PFO Short Circuit Source Current
(Note 6)
PFI Comparator Response Time (falling)
PFI Comparator Response Time (rising)
(Note 6)
PFI = HIGH, PFO = 0V
PFI = LOW, PFO = V OUT
ΔV IN = –20mV, V OD = 15mV
ΔV IN = 20mV, V OD = 15mV
with 10k Ω Pullup
1
3
30
2
40
8
25
μA
mA
μs
μs
μs
Chip Enable Gating
CE IN Threshold
V IL
0.8
V
CE IN Pullup Current (Note 4)
V IH
2.0
3
V
μA
CE OUT Output Voltage
I SINK = 3.2mA
I SOURCE = 3.0mA
I SOURCE = 1μA, V CC = 0V
V OUT – 1.50
V OUT – 0.05
0.4
V
V
V
CE Propagation Delay
CE OUT Output Short Circuit Current
V CC = 5V, CL = 20pF
Output Source Current
l
20
20
30
35
45
ns
ns
mA
Output Sink Current
35
mA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to GND.
Note 3: For military temperature range parts, consult the factory.
Note 4: The input pins of PB RST, BACKUP and CE IN, have weak internal
pullups which pull to the supply when the input pins are ?oating.
Note 5: The LTC1235 can be programmed either to provide or not to
provide battery backup power to the V OUT pin during power failure.
The power down condition of V OUT is selected by the logic level of the
BACKUP pin which is latched internally when V CC falls through the reset
V OUT will be in Battery Backup Mode and will be switched to V BATT when
V CC falls below V BATT . If the latched logic level of the BACKUP pin is low,
V OUT will be in Battery Saving Mode when V CC falls below V BATT .
Note 6: The output pins of BATT ON, LOW LINE, PFO , WDO , RESET and
RESET have weak internal pullups of typically 3A. However, external
pullup resistors may be used when higher speed is required.
Note 7: The push-button reset input requires an active low signal.
Internally, this input signal is debounced and timed for a minimum of
40ms. When this condition is satis?ed, the reset outputs go to the active
states. The reset outputs will remain in active states for a minimum of
140ms from the moment the push-button reset input is released from
logic low level.
voltage threshold. If the latched logic level of the BACKUP pin is high,
1235fa
4
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1261CS | IC REG SWITCHED CAP INV 14SOIC |
| LTC1262IS8 | IC DC/DC CONV FLASHMEM 12V 8SOIC |
| LTC1263IS8#TR | IC CONV DC/DC FLASHMEM 12V 8SOIC |
| LTC1265IS#TRPBF | IC REG BUCK ADJ 1.2A 14SOIC |
| LTC1266CS#PBF | IC REG CTRLR BST PWM CM 16-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1237ACSW | 制造商:Linear Technology 功能描述:1237ACSW |
| LTC1250CN8 | 功能描述:IC BRIDGE AMP ZERO-DRIFT 8-DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:电流检测 电路数:1 输出类型:- 转换速率:- 增益带宽积:125kHz -3db带宽:- 电流 - 输入偏压:- 电压 - 输入偏移:100µV 电流 - 电源:1.1µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:4-WFBGA，CSPBGA 供应商设备封装:4-UCSP（2x2） 包装:剪切带 (CT) 其它名称:MAX9634WERS+TCT |
| LTC1250CN8#PBF | 功能描述:IC BRIDGE AMP ZERO-DRIFT 8-DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LTC1250CN8PBF | 制造商:Linear Technology 功能描述:Op Amp General Purpose +/-9V/18V PDIP8 |
| LTC1250CS8 | 功能描述:IC BRIDGE AMP ZERO-DRIFT 8-SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
发布紧急采购，3分钟左右您将得到回复。