BL8023C 300mA Bi-Direction Relay Driver DESCRIPTION FEATURES BL8023C is a bi-direction relay driver circuit, used to control the magnetic latching relay, with large output capability, ultra-low power consumption. It can be widely used in smart meters and other pulses, level control applications. BL8023C can provide 300mA typical driving current, which will different according to the relay coil resistance. The input High Level Threshold of BL8023C is 3V; it can compatible with most single chip microcontroller. 5 to 36V input voltage range Low Power Consumption (IQ<1uA) Input High Level Threshold: 3V, compatible with most single chip microcontroller Typical Driving Current: 300mA Rds(on)=15ohm(Vin=12V, PMOSFET+NMOSFET) Rds(on)=10ohm(Vin=20V, PMOSFET+NMOSFET) Peak Driving Current: 500mA@Vin=24V Environment Temperature: -40C~85C SOP-8 package APPLICATIONS BL8023C is available in SOP-8 package. Smart Meter TYPICAL APPLICATION L 220V AC N A AC V+ AC V- + BRIDGE 1 8 2 7 BL8023C LC5223 3 6 4 5 Rs B Relay ORDERING INFORMATION OA Package NC SOP-8 A VIN 8023S LLLLL Part No. BL8023C PIN OUT & MARKING GND B NC OB SOP-8 Note： 8023S: Product Code th th LLLLL: 4 to 8 digits of Lot No. www.belling.com.cn 1 BL8023C ABSOLUTE MAXIMUM RATING Parameter Value Max Input Voltage Max Operating Junction Temperature(Tj) Ambient Temperature(Ta) 40V 150C -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. RECOMMENDED WORK CONDITIONS Parameter Value Input Voltage Range Operating Junction Temperature(Tj) Max.36V -40C –85C ELECTRICAL CHARACTERISTICS (VDD=5V, TA=25C) Symbol Parameter VIN Iq Conditions Input Voltage Range Quiescent Current Rdson ON Input High Voltage Equivalent Input Resistor Fly-Wheel Diode Forward Voltage Rise Time Turn ON Delay Time Fall Time Turn OFF Delay Time VSD TR TD(ON) TF TDIOFF) Typ 5 Switch Rdson VTH RIN Min Vin=12V, RL=75ohm Vin=30V, RL=75ohm Vin=12V, RL=40ohm Vin=30V, RL=40ohm Vin=12V 12 10 12 10 3 500 Is=1A 0.8 VIN=12V, RL=75ohm VIN=12V, RL=75ohm VIN=12V, RL=75ohm VIN=12V, RL=75ohm 40 60 30 70 Max Unit 36 1 18 16 18 16 V uA ohm ohm ohm ohm V Kohm 1.5 V ns ns ns ns LOGIC FUNCTION TABLE Input A Input B Output OA Output OB RELAY RESPONSE 1 0 0 1 0 1 0 1 1 0 High-impedance High-impedance 0 1 High-impedance High-impedance ON OFF Hold Hold www.belling.com.cn 2 BL8023C PIN DESCRIPTION PIN # NAME 1 2, 6 3 4 5 7 8 OA NC A GND OB B VIN DESCRIPTION Output A Not connected. Input A Ground. Output B Input B 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 Vth VS. Vin Forward Voltage 5.0 900 4.5 800 4.0 700 3.5 Vth(V) I(mA) 600 500 400 3.0 2.5 2.0 300 1.5 200 1.0 100 0.5 0.0 0 0.0 0.5 1.0 1.5 0 2.0 10 15 20 Vin(V) VSD(V) www.belling.com.cn 5 3 25 30 35 40 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. Forward drive/OPEN InputA Backward drive/CLOSE interval Pulse width =100ms InputB Pulse width Interval =100ms Forward drive/OPEN InputA Pulse width =100ms interval Forward drive/OPEN Pulse width =100ms InputB www.belling.com.cn 4 interval BL8023C BL8023C Pulse triggering application diagram Level Triggering If input is driven by voltage level, resistor R1, R2 should be used to insure low voltage standby input. Apply input voltage according to logic table drives the relay correspondingly (R1, R2=30K-100K, R3, R4=100K, C1, C2=10n, recommended for removing input spikes; 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). L 220V AC N AC V+ AC V- + BRIDGE A Vin R1 R3 1 8 2 7 LC5223 3 BL8023C 6 4 5 Rs B R4 R2 C1 Relay Level triggering application diagram www.belling.com.cn 5 Vin BL8023C PACKAGE OUTLINE Package SOP-8 Devices per reel Package specification: www.belling.com.cn 6 2500 Unit mm