參數(shù)資料
型號： BU4346G
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： ROHS COMPLIANT, SSOP-5
文件頁數(shù)： 4/11頁
文件大小： 282K
代理商： BU4346G
Technical Note
2/10
BU42
□□G, BU42□□F, BU42□□FVE, BU43□□G, BU43□□F, BU43□□FVE series
www.rohm.com
2009.06 - Rev.B
2009 ROHM Co., Ltd. All rights reserved.
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power Supply Voltage
VDD-GND
-0.3 ~ +7
V
Output Voltage
Nch Open Drain Output
VOUT
GND-0.3 ~ +7
V
CMOS Output
GND-0.3 ~ VDD+0.3
Power
Dissipation
SSOP5
*1*4
Pd
540
mW
SOP4
*2*4
400
VSOF5
*3*4
210
Operating Temperature
Topr
-40 ~ +125
°C
Ambient Storage Temperature
Tstg
-55 ~ +125
°C
*1
When used at temperatures higher than Ta=25°C, the power is reduced by 5.4mW per 1°C above 25°C.
*2
When used at temperatures higher than Ta=25°C, the power is reduced by 4.0mW per 1°C above 25°C.
*3
When used at temperatures higher than Ta=25°C, the power is reduced by 2.1mW per 1°C above 25°C.
*4
When a ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board)is mounted.
Electrical characteristics (Unless Otherwise Specified Ta=-40 to 105°C)
Parameter
Symbol
Condition
Limit
Unit
Min.
Typ.
Max.
Detection Voltage
VDET
VDD=H
L, Ta=25°C, RL=470k
VDET(T)
×0.99
VDET(T)
×1.01
V
Circuit Current when ON
IDD1
VDD=VDET-0.2V
VDET =0.9-1.3V
-
0.15
0.88
A
VDET =1.4-2.1V
-
0.20
1.05
VDET =2.2-2.7V
-
0.25
1.23
VDET =2.8-3.3V
-
0.30
1.40
VDET =3.4-4.2V
-
0.35
1.58
VDET =4.3-4.8V
-
0.40
1.75
Circuit Current when OFF
IDD2
VDD=VDET+2.0V
VDET =0.9-1.3V
-
0.30
1.40
A
VDET =1.4-2.1V
-
0.35
1.58
VDET =2.2-2.7V
-
0.40
1.75
VDET =2.8-3.3V
-
0.45
1.93
VDET =3.4-4.2V
-
0.50
2.10
VDET =4.3-4.8V
-
0.55
2.28
Operating Voltage Range
VOPL
VOL
≤0.4V, Ta=25~125°C, RL=470k
0.70
-
V
VOL
≤0.4V, Ta=-40~25°C, RL=470k
0.90
-
‘High’ Output Current (Pch)
IOH
VDS=0.5V
VDD=6.0V
VDET=4.0-4.8V
2.0
4.0
-
mA
‘Low’ Output Current (Nch)
IOL
VDS=0.05V
VDD=0.85V
20
100
-
A
VDS=0.5V
VDD=1.5V
VDET=1.7-4.8V
1.0
3.3
-
mA
VDS=0.5V
VDD=2.4V
VDET=2.7-4.8V
3.6
6.5
-
Leak Current when OFF
Ileak
VDD=VDS=7V
Ta=-40~85°C
-
0
0.1
A
VDD=VDS=7V
Ta=85~125°C
-
0
1
‘High’ Output Current (Pch)
IOH
VDS=0.5V
VDD=4.8V
VDET=0.9-3.9V
1.7
3.4
-
mA
VDS=0.5V
VDD=6.0V
VDET=4.0-4.8V
2.0
4.0
-
CT pin Threshold Voltage
VCTH
VDD=VDET×1.1, VDET=0.9-2.5V
Ta=25°C
RL=470k
VDD
×0.35
VDD
×0.45
VDD
×0.55
V
VDD=VDET×1.1, VDET=2.6-4.8V
Ta=25°C
RL=470k
VDD
×0.40
VDD
×0.50
VDD
×0.60
Output Delay Resistance
RCT
VDD=VDET×1.1
VCT=0.5V
Ta=25°C
*1
9
10
11
M
CT pin Output Current
ICT
VCT=0.1V
VDD=0.85V
5
40
-
A
VCT=0.5V
VDD=1.5V
VDET=1.7-4.8V
200
400
-
Detection Voltage
Temperature coefficient
VDET/
T Ta=-40°C ~125°C
-
±30
-
ppm/°C
Hysteresis Voltage
VDET
VDD=L
HL
Ta=-40~125°C
RL=470k
VDET
≤1.0V
VDET
×0.03
VDET
×0.05
VDET
×0.08
V
VDET
≤1.1V
VDET
×0.03
VDET
×0.05
VDET
×0.07
*1:
Designed guarantee. (Outgoing inspection is not done all products.)
VDET(T) : Standard Detection Voltage（0.9V to 4.8V, 0.1V step）
R
L:
Pull-up resistor to be connected between VOUT and power supply.
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