KODENSHI BMR

System Reset IC
KODENSHI
BMR-0302
BMR–0302 is the low reset type of IC that guarantee to set again micro
computers or logic systems by detecting the intermittent of fluctuating
power supply voltage during normal use or switching on/off of
theequipments.
A comparator type of hysteresis transistor developed by KODENSHI is
built in the IC,so that BMR–0302 is very cost effective components.
And,BMR–0302 is a super–low consumption electric current system
reset IC which has been developed with using high resistance process.
DIMENSIONS
(Unit : mm)
FEATURES
•Super–low current consumption
•Low operation voltage
•High current of output transistor
•Hysteresis circuit built in
•It has on delay function to supplement the constant of outer C and R
•A package is SOT–23 of the super–miniature surface mounting type
APPLICATIONS
•Micro computer circuits in mobile phones,word processors,TVs,VCRs
etc.
•General logic circuits
•Detection of voltage drop in batteries of note personal computers,
mobile phones
•Switching to backup power supply
MAXIMUM RATINGS
Item
Supply voltage
Power dissipation
Operating temp.
Storage temp.
(Ta=25℃)
Symbol
Rating
Unit
VCC
PD
Topr.
Tstg
-0.3~+10.0
150
-20~+75
-40~+125
V
mW
℃
℃
ELECTRO-OPTICAL CHARACTERISTICS
Item
Detecting Voltage
BMR-0302C
BMR-0302D
BMR-0302E
BMR-0302F
BMR-0302G
BMR-0302H
BMR-0302I
BMR-0302J
BMR-0302K
BMR-0302L
Hysteresis voltage
Temperature coefficient of detecting voltage
Low level output voltage
Circuit current at ON
Circuit current at OFF
Threshold operating voltage
Output current at ON 1
Output current at ON 2
Transmission delay time
Transmission delay time
(VC C=5V,Ta=25℃)
Symbol
Conditions
VS
RL =470 Ω,VCC =H →L,VOL ≦0.4V
△VS
VS /△T
VOL
ICCL
ICCH
VOPL
IOL 1
IOL 2
tPLH
tPHL
RL =470 Ω,VCC =L →H →L
RL =470 Ω,Ta=–20 ~75 ℃
RL =470 Ω,VCC =VS Min.
RL =∞Ω,VCC =VS Min.
RL =∞Ω,VCC =VS Max+0.1V
RL =4.7k Ω,VOL ≦0.4V
RL =0 Ω,VCC =VS Min.
RL =0 Ω,Ta=–20 ~75 ℃
RL =4.7k Ω,CL =100pF
RL =4.7k Ω,CL =100pF
- 1-
Min.
Typ.
Max.
4.3
4.0
3.7
3.4
3.1
2.9
2.75
2.55
2.35
2.15
40
10
5
-
4.5
4.2
3.9
3.6
3.3
3.1
2.9
2.7
2.5
2.3
100
±0.01
0.1
100
1.0
1.4
20
100
10
4.7
4.4
4.1
3.8
3.5
3.3
3.05
2.85
2.65
2.45
300
0.4
180
2.5
1.6
500
20
Unit.
V
mV
%/℃
V
μA
μA
V
mA
mA
μsec
μsec
System Reset IC
BMR-0302
Power dissipation Vs.
Ambient temp
Output voltage Vs.
Supply voltage
Detecting voltage Vs.
Ambient temp.
Hysteresis voltage Vs.
Ambient temp.
Low Level output voltage Vs.
Ambient temp.
Output current at ON Vs.
Ambient temp.
Circuit current at OFF Vs.
Ambient temp.
Circuit current at ON Vs.
Ambient temp.
Load capasitance Vs.
Transmission delay time
Timing chart
- 2-
Output current Vs.
Supply voltage