BL8023C Datasheet V1.5
BL8023C Datasheet V1.5
BL8023C Datasheet V1.5
DESCRIPTION FEATURES
BL8023C is a bi-direction relay driver circuit, used 5 to 36V input voltage range
to control the magnetic latching relay, with large Low Power Consumption (IQ<1uA)
output capability, ultra-low power consumption. Input High Level Threshold: 3V, compatible with
It can be widely used in smart meters and other most single chip microcontroller
pulses, level control applications. Typical Driving Current: 300mA
Rds(on)=12ohm(Vin=12V, PMOSFET+NMOSFET)
BL8023C can provide 300mA typical driving Rds(on)=10ohm(Vin=30V, PMOSFET+NMOSFET)
current, which will different according to the Peak Driving Current: 500mA@Vin=24V
relay coil resistance. The input High Level Environment Temperature: -40C~85C
Threshold of BL8023C is 3V; it can compatible SOP-8 and DIP-8 packages
with most single chip microcontroller.
TYPICAL APPLICATION
L
AC V+
220V +
AC
AC V-
N
BRIDGE
Rs
1 8
2 7
A BL8023C
LC5223
3 6
4 5
B
Relay
NC B
LLLLL
A NC
GND OB
SOP-8/DIP8
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BL8023C
ABSOLUTE MAXIMUM RATING
Parameter Value
Max Input Voltage 40V
Max Operating Junction Temperature(Tj) 150C
Ambient Temperature(Ta) -40C – 125C
θja 128C / W
Package Thermal Resistance SOP-8
θjc 45C / W
Storage Temperature(Ts) -40C - 150C
Lead Temperature & Time 260C, 10S
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device
reliability.
ELECTRICAL CHARACTERISTICS
(VIN=5V, TA=25C)
Symbol Parameter Conditions Min Typ Max Unit
VIN Input Voltage Range 5 36 V
Iq Quiescent Current 1 uA
Vin=12V, RL=75ohm 12 18 ohm
Vin=30V, RL=75ohm 10 16 ohm
Rdson Switch Rdson
Vin=12V, RL=40ohm 12 20 ohm
1
Vin=30V, RL=40ohm 10 16 ohm
VTH ON Input High Voltage Vin=12V 3 V
RIN Equivalent Input Resistor 500 Kohm
VSD Fly-Wheel Diode Forward Voltage Is=1A 1.2 2 V
TR Rise Time VIN=12V, RL=75ohm 40 ns
TD(ON) Turn ON Delay Time VIN=12V, RL=75ohm 60 ns
TF Fall Time VIN=12V, RL=75ohm 30 ns
TDIOFF) Turn OFF Delay Time VIN=12V, RL=75ohm 70 ns
Note: 1) This condition is not suitable for SOT23-6 package.
2) Input rise/fall time must less than 1ms, otherwise maybe destroy the chip.
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BL8023C
PIN DESCRIPTION
PIN # NAME DESCRIPTION
1 OA Output A
2, 6 NC Not connected.
3 A Input A
4 GND Ground.
5 OB Output B
7 B Input B
8 VIN Supply input voltage
ELECTRICAL PERFORMANCE
Tested under TA=25C, unless otherwise specified
Turn on delay and rise time Turn off delay and fall time
Ch1---Input Ch2---Output Ch1---Input Ch2---Output
3.0
I(mA)
800
2.5
600 2.0
400 1.5
1.0
200 0.5
0 0.0
0.0 0.5 1.0 1.5 2.0 0 5 10 15 20 25 30 35 40
VSD(V) Vin(V)
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BL8023C
BLOCK DIAGRAM
DETAILED DESCRIPTION
Pulse Triggering
If input is driven by square pulse, connect the inputs to the pulse source directly. Relay will operate as logic table
stated (Vin should be less than the power supply voltage, Rs is current-limiting resistor, it can be ignored in the voltage
is below 20V, i.e. Rs=0).
The recommended pulse width=100ms. The length of the intervals should be longer than 100ms. These intervals
include: intervals between forward drive pulse and next backward drive pulse, intervals between forward drive pulse
and next forward drive pulse, intervals between backward drive pulse and next forward drive pulse, intervals between
backward drive pulse and next backward drive pulse.
interval
InputA Pulse width
=100ms
Interval
InputB Pulse width
=100ms
Forward drive/OPEN Forward drive/OPEN
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BL8023C
L
AC V+
220V +
AC
AC V-
N
BRIDGE
Rs
1 8
2 7
A LC5223
3 BL8023C 6
4 5
B
Relay
Relay free-wheel
Relay from ON to OFF, the energy stored in the relay inductor released by the chip’s internal body diode and the relay
inductor. Until the end of the release of this energy, relay proceeding to the next operation.
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BL8023C
PACKAGE OUTLINE
Package SOP-8 Devices per reel 2500 Unit mm
Package specification:
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