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BD4142HFV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD4142HFV
기능 Free Delay Time Setting CMOS Voltage Detector IC
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BD4142HFV 데이터시트, 핀배열, 회로
Datasheet
Free Delay Time Setting
CMOS Voltage Detector IC
BD4142HFV
General Description
BD4142HFV is 1ch voltage detector IC for monitoring an
input voltage line. The default detected voltage is 0.5V
and is adjustable via external resistors. When monitoring
an input voltage supply, the IC outputs a HIGH signal via
a PGOOD pin when the supply rises above the threshold
and is LOW when below.
Features
Open Drain Output
Built in Under Voltage LockOut (UVLO) Circuit
Delay Time Controlled by External Capacitor
Very small and low height package
PGOOD HIGH Output
Applications
Laptop PC, Desktop PC, LCD-TV, Printer, STB, Digital
Appliances, and more.
Key Specifications
Input voltage range:
3.0V to 5.5V
Detected voltage:
500mV(Typ)
PGOOD output ON resistance:
100(Typ)
Bias current:
7.5μA (Typ)
Operating temperature range (Ta): -10to +100
Package
HVSOF5
1.60mm x 1.60mm x 0.60mm
Typical Application Circuit
HVSOF5
R1
U1
BD4142HFV
VCC
3 VCC
1
PGOOD
PGOOD
GND
CVCC
2
GND
5
DLY
IN 4
CEXT
VMON
R2
R3
Figure 1. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed for protection against radioactive rays
1/14
TSZ02201-0333AAZ00350-1-2
21.Aug.2015 Rev.002




BD4142HFV pdf, 반도체, 판매, 대치품
BD4142HFV
Typical Performance Curves (Unless otherwise noted, Ta=25, VCC=5V)
Datasheet
10
9
8
7
6
5
4
3
2
1
0
0
12 3 45
Supply Voltage : VCC[V]
6
Figure 4. Supply Voltage - Bias Current
12
10
8
6
4
2
0
-10
10 30 50 70
Temperature : Ta[]
90
Figure 5. Temperature - Bias Current
550
540
530
520
510
500
490
480
470
460
450
3
3.5 4 4.5 5
Supply Voltage : VCC[V]
5.5
Figure 6. Supply Voltage - Detected Voltage
550
540
530
520
510
500
490
480
470
460
450
-10
10 30 50 70
Temperature : Ta[]
90
Figure 7. Temperature - Detected Voltage
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/14
TSZ02201-0333AAZ00350-1-2
21.Aug.2015 Rev.002

4페이지










BD4142HFV 전자부품, 판매, 대치품
BD4142HFV
Datasheet
Limit of Detected Delay Time Operation (Ta=25, VCC =5V, CEXT=4700pF)
When the input pulse width (IN) is shorter than 50µs (Typ) (20µs (Min)), PGOOD goes LOW and come back to HIGH
without any delay time setup by capacitor of DLY terminal.
The behavior depends on the VCC voltage and the CEXT capacitance.
50µs (Typ)
No delay inserted
t
t
Figure 13. Input low pulse is shorter than 50µs (Typ)
(Ta=25, VCC =5V, CEXT=4700pF)
Limit of Reaction Time
If the input pulse (IN) is shorter than 1µs (Typ), PGOOD does not react (PGOOD keeps HIGH).
1µs (Typ)
t
t
Figure 14. Input low pulse is shorter than 1µs
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/14
TSZ02201-0333AAZ00350-1-2
21.Aug.2015 Rev.002

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BD4142HFV

Free Delay Time Setting CMOS Voltage Detector IC

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