BD5242G-TR Rohm Semiconductor, BD5242G-TR Datasheet - Page 7

• Manufacturer Part Number: BD5242G-TR
• Description: IC DETECTOR VOLT 4.2V ODRN 5SSOP
• Manufacturer: Rohm Semiconductor
• Type: Simple Reset/Power-On Resetr
• Series: -r

Specifications of BD5242G-TR

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Voltage - Threshold: 4.2V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 5-SSOP
• Reset Timeout: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Reset Timeout: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3) Examples of the power supply with resistor dividers
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BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
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V1
In applications where the power supply input terminal (VDD) of an IC with resistor dividers, it is possible that a through
current will momentarily flow into the circuit when the output logic switches, resulting in malfunctions (such as output
oscillatory state).
(Through-current is a current that momentarily flows from the power supply (VDD) to ground (GND) when the output level
switches from “High” to “Low” or vice versa.)
A voltage drop of [the through-current (I1)] × [input resistor (R2)] is caused by the through current, and the input voltage to
descends, when the output switches from “Low” to “High”. When the input voltage decreases and falls below the detection
voltage, the output voltage switches from “High” to “Low”. At this time, the through-current stops flowing through output
“Low”, and the voltage drop is eliminated. As a result, the output switches from “Low” to “High”, which again causes the
through current to flow and the voltage drop. This process is repeated, resulting in oscillation.
*This data is for reference only.
0.001
The figures will vary with the application, so please confirm actual operating conditions before use.
0.01
0.1
R2
R1
10
1
3
VDD - IDD Peak Current Ta=25°C
4
CIN
I1
5
Fig.21
6
VDD[V]
Fig.22 Current Consumption vs. Power Supply Voltage
V
BD52□□
BD53□□
DD
7
GND
8
9
BU43xx
BU42xx
BD52xx
BD53xx
C
10
L
7/9
V
OUT
0
I
DD
0.4
0.3
0.2
0.1
0
-50
-30
V
DET
-10
Temp - IDD(BD52xx)
Through
Current
10
Temp[°C]
30
50
Technical Note
2009.06 - Rev.B
70
90
110
VDD3V
VDD5V
VDD7V
VDD10V
V
DD
130