ROHM’s BD48xxx and BD49xxx series are highly
accurate, low-current Voltage Detector IC series. The
family includes BD48xxx devices with N-channel open
drain output and BD49xxx devices with CMOS output.
The devices are available for specific detection voltages
ranging from 2.3V to 6.0V in increments of 0.1V.
●Features
High accuracy detection
Ultra-low current consumption
Two output types (Nch open drain and CMOS output)
Wide Operating temperature range
Very small and low height package
Package SSOP5 is similar to SOT-23-5 (JEDEC)
Package SSOP3 is similar to SOT-23-3 (JEDEC)
●Key Specifications
Detection voltage: 2.3V to 6.0V (Typ.),
0.1V steps
High accuracy detection voltage: ±1.0%
Ultra-low current consumption: 0.9µA (Typ.)
Operating temperature range: -40°C to +105°C
●Package
SSOP5: 2.90mm x 2.80mm x 1.25mm
SSOP3: 2.92mm x 2.80mm x 1.25mm
VSOF5: 1.60 mm x 1.60mm x 0.60mm
●Applications
Circuits using microcontrollers or logic circuits that
require a reset.
●Typical Application Circuit
V
BD48xxx
(Open Drain Output type)
BD48xxx series
RL
R
L
C
(
noise filtering
Micro
controller
)
DD2
V
GND
GND
Micro
BD49xxx
(CMOS Output type)
BD49xxx series
CL
(
RST
)
○Product structure:Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
.
●Lineup
Table 1. Lineup for VSOF5 and SSOP5 Package
Package Type
Output Type Open Drain CMOS Open Drain CMOS
VSOF5 or SSOP5 SSOP5
Voltage
6.0V
5.9V
5.8V
5.7V
5.6V
5.5V
5.4V
5.3V
5.2V
5.1V
5.0V
4.9V
4.8V
4.7V
4.6V
4.5V
4.4V
4.3V
4.2V
4.1V
4.0V
3.9V
3.8V
3.7V
3.6V
3.5V
3.4V
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
Marking
EW BD4860 GW BD4960 Cm BD48E60 Ff BD49E60
EV BD4859 GV BD4959 Ck BD48E59 Fe BD49E59
EU BD4858 GU BD4958 Ch BD48E58 Fd BD49E58
ET BD4857 GT BD4957 Cg BD48E57 Fc BD49E57
ES BD4856 GS BD4956 Cf BD48E56 Fb BD49E56
ER BD4855 GR BD4955 Ce BD48E55 Fa BD49E55
EQ BD4854 GQ BD4954 Cd BD48E54 Ey BD49E54
EP BD4853 GP BD4953 Cc BD48E53 Er BD49E53
EN BD4852 GN BD4952 Cb BD48E52 Ep BD49E52
EM BD4851 GM BD4951 Ca BD48E51 En BD49E51
EL BD4850 GL BD4950 By BD48E50 Em BD49E50
EK BD4849 GK BD4949 Br BD48E49 Ek BD49E49
EJ BD4848 GJ BD4948 Bp BD48E48 Eh BD49E48
EH BD4847 GH BD4947 Bn BD48E47 Eg BD49E47
EG BD4846 GG BD4946 Bm BD48E46 Ef BD49E46
EF BD4845 GF BD4945 Bk BD48E45 Ee BD49E45
EE BD4844 GE BD4944 Bh BD48E44 Ed BD49E44
ED BD4843 GD BD4943 Bg BD48E43 Ec BD49E43
EC BD4842 GC BD4942 Bf BD48E42 Eb BD49E42
EB BD4841 GB BD4941 Be BD48E41 Ea BD49E41
EA BD4840 GA BD4940 Bd BD48E40 Dy BD49E40
DV BD4839 FV BD4939 Bc BD48E39 Dr BD49E39
DU BD4838 FU BD4938 Bb BD48E38 Dp BD49E38
DT BD4837 FT BD4937 Ba BD48E37 Dn BD49E37
DS BD4836 FS BD4936 Ay BD48E36 Dm BD49E36
DR BD4835 FR BD4935 Ar BD48E35 Dk BD49E35
DQ BD4834 FQ BD4934 Ap BD48E34 Dh BD49E34
DP BD4833 FP BD4933 An BD48E33 Dg BD49E33
DN BD4832 FN BD4932 Am BD48E32 Df BD49E32
DM BD4831 FM BD4931 Ak BD48E31 De BD49E31
DL BD4830 FL BD4930 Ah BD48E30 Dd BD49E30
DK BD4829 FK BD4929 Ag BD48E29 Dc BD49E29
DJ BD4828 FJ BD4928 Af BD48E28 Db BD49E28
DH BD4827 FH BD4927 Ae BD48E27 Da BD49E27
DG BD4826 FG BD4926 Ad BD48E26 Cy BD49E26
DF BD4825 FF BD4925 Ac BD48E25 Cr BD49E25
DE BD4824 FE BD4924 Ab BD48E24 Cp BD49E24
DD BD4823 FD BD4923 Aa BD48E23 Cn BD49E23
Power Supply Voltage VDD-GND -0.3 to +10 V
Output Voltage
Nch Open Drain Output
CMOS Output GND-0.3 to VDD+0.3
V
OUT
Output Current Io 70 mA
*1*4
*2*4
*3*4
Pd
Power
Dissipation
SSOP5
VSOF5
Operating Temperature Topr -40 to +105 °C
Ambient Storage Temperature Tstg -55 to +125 °C
*1 Reduced by 5.4mW/°C when used over 25°C.
*2 Reduced by 7.0mW/°C when used over 25°C.
*3 Reduced by 2.1mW/°C when used over 25°C.
*4 When mounted on ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board).
●Electrical Characteristics (Unless Otherwise Specified, Ta=-40 to 105°C)
Parameter Symbol Condition
RL=470kΩ, VDD=HL
*1
Ta=+25°C2.475 2.5 2.525
VDET=2.5V
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C2.970 3.0 3.030
VDET=3.0V
Ta=-40°C to 85°C
Ta=85°C to 105°C
Detection Voltage V
DET
VDET=3.3V
Ta=+25°C3.267 3.3 3.333
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C4.158 4.2 4.242
VDET=4.2V
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C4.752 4.8 4.848
VOL≤0.4V, Ta=25 to 105°C, RL=470kΩ0.95 - VOL≤0.4V, Ta=-40 to 25°C, RL=470kΩ1.20 - -
-0.2V *1
*1
+2.0V
V
=2.3-3.1V - 0.51 1.53
DET
V
=3.2-4.2V - 0.56 1.68
DET
V
=4.3-5.2V - 0.60 1.80
DET
V
=5.3-6.0V - 0.66 1.98
DET
V
=2.3-3.1V - 0.75 2.25
DET
V
=3.2-4.2V - 0.80 2.40
DET
V
=4.3-5.2V - 0.85 2.55
DET
V
=5.3-6.0V - 0.90 2.70
DET
*2
RL:Pull-up resistor to be connected between VOUT and power supply.
CL:Capacitor to be connected between VOUT and GND.
Design Guarantee. (Outgoing inspection is not done on all products.)
*1 Guaranteed at Ta=25°C.