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| 型号： | R3111Q251A |
| 厂商： | Ricoh Co., Ltd. |
| 英文描述： | LOW VOLTAGE DETECTOR |
| 中文描述： | 低电压检测 |
| 文件页数： | 1/20页 |
| 文件大小： | 218K |
| 代理商： | R3111Q251A |
’98.Dec.05
LOW VOLTAGE DETECTOR
R3111xxx1A/C Series
Rev.1.10
- 1 -
s OUTLINE
The R3111 Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current by CMOS
process, which can be operated at an extremely low voltage and is used for system reset as an example.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver
and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment.
Two output types, Nch open drain type and CMOS type are available.
The R3111 Series are operable at a lower voltage than that for the RX5VL Series, and can be driven by a single battery.
Four types of packages, TO-92, SOT-89, SOT-23-5 and SC-82AB are available.
s FEATURES
q
Ultra-low Supply Current ............................................................... TYP. 0.8A (VDD=1.5V)
q
Wide Range of Operating Voltage .................................................. 0.7 to 10.0V(Topt=25
°C)
q
Detector Threshold ......................................................................... Stepwise setting with a step of 0.1V in the range of
0.9V to 6.0V is possible.
q
High Accuracy Detector Threshold................................................ ±2.0%
q
Low Temperature-Drift Coefficient of Detector Threshold............ TYP. ±100ppm/
°C
q
Two Output Types .......................................................................... Nch Open Drain and CMOS
q
Four Types of Packages.................................................................. TO-92, SOT-89(Mini-power Mold), SOT-23-5 (Mini-
mold), SC-82AB
s APPLICATIONS
q
CPU and Logic Circuit Reset
q
Battery Checker
q
Window Comparator
q
Wave Shaping Circuit
q
Battery Back-up Circuit
q
Power Failure Detector
s BLOCK DIAGRAMS
R3111XXX1A
R3111XXX1C
VDD
OUT
GND
Vref
VDD
OUT
GND
Vref
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R-311L-D | 制造商:SCHURTER 制造商全称:Schurter Inc. 功能描述:Power Cord with IEC Connector C13, Angled |
| R3-12 | 制造商:Thomas & Betts 功能描述:KUBE MULTITAP BODY SIZE0 4 POSITION |
| R313 | 制造商:EMERSON 功能描述:MOTOR 230/460 VOLT, 60 HERTZ, 3-PHASE, 138/69 AMP, 1190 RPM, FRAME:404T RIGID OPEN, REVERSE, 2-7/8 X 7-1/4KEY, SINGLE BALL BEARINGS FRAME : ALL OTHER HERTZ : 60 HERTZ HP OR WATTAGE : 60 HP PHASE : 3 PHASE ROTATION (ALL SE) : CCW RPM : 1101-1200 RPM VOLTAGE : MULTI VOLT |
| R3130 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| R3130A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
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