파트넘버.co.kr BA225 데이터시트 PDF


BA225 반도체 회로 부품 판매점

(BA2xx) CR Timer



ROHM Semiconductor 로고
ROHM Semiconductor
BA225 데이터시트, 핀배열, 회로
Standard ICs
CBAR22t5im/ BeArh2e2e5tF4U/ B.cAom235 / BA226 / BA226F / BA236The BA225, BA225F, BA235, BA226, BA226F, and BA236 are monolithic ICs having independent monostable multi-
Svibrator circuits which consume very low current (0.75mA typ.). Using external resistors and capacitors, the timing
tacontrol time can be set within a range from 0.01ms to 100ms.
a mAs the BA225, BA225F, and BA235 are triggered at the rising edge of the signal, they have no trigger input differenti-
.Dating circuit and can be used in measuring instruments, control devices, digital data systems and other equipment as
w osub-compact attachments. The BA226, BA226F, and BA236 are available as falling edge trigger types.
ww .cApplications
Delay timers
UMonostable multivibrator (ideal for VCR system con-
trollers)
t4Pulse generators
eFeatures
1) As these are edge trigger types (BA225 / BA235: ris-
eing edge trigger types, BA226 / BA236: falling edge
trigger types), there is no need for an input differenti-
hating circuit.
2) The dual type design enables delay timer configura-
Stion.
ta3) Fewer attachments are required.
4) Current dissipation is as low as 0.75mA for each cir-
cuit.
5) Uniformity in the supply current between high and
low output states simplifies the design of the power
supply section.
6) Wide operating power supply voltage range of 4.0V
to 16V.
7) The BA235 and BA236 pin assignments are sym-
metrical, allowing reverse insertion.
8) Hysteresis in the input results in a high level of noise
withstand resistance.
aBlock diagram
.D mBA225 / BA225F
w .coBA226 / BA226F
BA235 / BA236
w t4UOUT1 1
eeCR1 2
w taShTRIGGER1 3
O
CR
T
www.DaGND 4
8 VCC
O
CR
T
7 OUT2
6 CR2
5 TRIGGER2
VCC
1
OT
CR
234
GND
5
TO
CR
VCC
6789
1


BA225 데이터시트, 핀배열, 회로
Standard ICs
BA225 / BA225F / BA235 / BA226 / BA226F / BA236
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power
dissipation
BA225 / BA226
BA235 / BA236
BA225F / BA226F
VCC
Pd
16
8001
9502
4503
Operating temperature
Topr
– 20 ~ + 75
Storage temperature
Tstg – 55 ~ + 125
1 Reduced by 8mW for each increase in Ta of 1°C over 25°C.
2 Reduced by 9.5mW for each increase in Ta of 1°C over 25°C.
3 Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.
Unit
V
mW
mW
mW
°C
°C
Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 5V)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Operating power supply voltage
Quiescent current
Timing accuracy
Timing change with power supply
Timing change with temperature
VCC
IQ
TERR
TDS
TOT
Trigger voltage
VT
BA236
4.0 5.0 16.0 V
— 1.5 3.0 mA
1 10
% R = 100k, C = 0.1µF1
— 0.5 3.0 % 5V¨16V
— 200 — ppm / °C
1.0 2.0 3.0
V 2
0.7 1.6 2.5
Measurement
circuit
Fig.7
Fig.7
Fig.7
Fig.7
Fig.7
Fig.7
Trigger current
IT
— 70 200
µA
VT = 3.0V (BA225 / BA235)
VT = 2.5V (BA226 / BA226F / BA236)
Fig.7
Output low level voltage
VOL — 0.5 1.0 V ISINK = 5mA
Output high level voltage
VOH 3.0 4.0 —
V ISOURCE = 5mA
1 One-shot cycle T = 0.5 CR
2 With input hysteresis (hysteresis width Լ 200 to 600mV)
Fig.7
Fig.7
Electrical characteristic curves
4
3
"H" output
2
"L" output
1
0
04
8 12 16 20
POWER SUPPLY VOLTAGE: VCC (V)
Fig. 1 Quiescent current vs. power
supply voltage
2
VCC = 5V
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0
4 8 12 16 20
SOURCE CURRENT: ISOURCE (mA)
Fig. 2 Output voltage (logic 1
side) characteristics
2.0
VCC = 5V
1.0
0
04
8 12 16 20
SINK CURRENT: ISINK (mA)
Fig. 3 Output voltage (logic 0
side) characteristics




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