ELECTRONIC GIANT. EG3012 Datasheet. Half-Bridge Driver. Copyright 2012 by EGmicro Corporation REV 1.0

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1 ELECTRONIC GIANT EG32 Datasheet Copyright 22 by EGmicro Corporation REV.

2 EG32 datasheet Contents. Features General Description Applications Device Information Pin map Pin Functions Block Diagram Application Schematics Electrical Characteristics Absolute maximum ratings Recommended operating conditions Timing Diagram Function Description Supply voltage and UV Input stage and Output stage Bootstrap Package Information SOP8 Dimension... Copyright 22 by EGmicro Corporation /

3 EG32 datasheet EG32 Datasheet V.. Features Floating high side driver in bootstrap operation to +V, build in bootstrap diode Internal fixed dead time of 2nS Under voltage lockout for Cross-conduction prevention logic 8mA source/ma sink output current capability Driving N-channel MOSFETs and IGBTs in a half-bridge configuration High side output in phase with input Low side output in phase with input Minimal peripheral components Low quiescent current:4.5ma Package:SOP8 2. General Description The EG32 is a cost effective half-bridge driver IC designed for N-channel MOSFETs and IGBTs. The EG32 includes a combined logic inputs for low and high-side drives, fixed dead time to protect FETs, under voltage lockout for, cross-conduction prevention logic, high voltage level shifter, noise filter enhanced immunity, and provide high current capability for external N-channel MOSFETs, application for brushless motor drives. The bootstrap operation voltage of EG32 is up to VDC, the operation voltage of is between V to 3V, and quiescent supply current is only 4.5mA. Build in simultaneous conduction lockout protection, and build in pull down resistors of K on all the input pins(, ), when input pins are floating, the and are held to low, the structure of high current Darlington is used in output stage, the EG32 is available in a SOP8 package. 3. Applications E-bike controller V synchronous Buck converter Class D power amplifies Brushless pump controller BLDC Motor drive Copyright 22 by EGmicro Corporation 2 /

4 4. Device Information EG32 datasheet 4.. Pin map V B VS EG GND Figure 4-. EG32 pin map 4.2. Pin Functions Designator Name I/O Descriptions Power Supply voltage 2 I Logic input for high side gate driver output, in phase 3 I Logic input for low side gate driver output, in phase 4 GND GND Ground 5 O Output gate driver for low side MOSFET 6 VS O High side bootstrap return 7 O Output gate driver for high side MOSFET 8 VB Power Bootstrap supply voltage Copyright 22 by EGmicro Corporation 3 /

5 5. Block Diagram EG32 datasheet 2 Hin Input K K UV Detect OFF Level Shift Noise Filter Driver VB Dead Time 6 VS 3 Lin Input K K Driver 5 4 GND Fig 5-. EG32 block diagram 6. Application Schematics +5V +Vin U C.uF L IN 2 3 EG VB VS D R N448 C3 nf Q C2 47uF GND 4 5 OUT D2 N448 R2 C4 nf Q2 Fig 6-. EG32 typical application schematic I for middle power motor Copyright 22 by EGmicro Corporation 4 /

6 +5V EG32 datasheet +Vin U C.uF L IN GND 2 3 EG VB VS D N448 R C3 nf R3 2 D3 FR7 Q C2 47uF OUT D2 N448 R2 C4 nf Q2 Fig 6-2. EG32 typical application schematic II for high power motor +5V +Vin D3 FR7 U C.uF L IN 2 3 EG VB VS D R N448 C3 nf Q C2 47uF GND 4 5 OUT D2 N448 R2 C4 nf Q2 Fig 6-3. EG32 typical application schematic III for external bootstrap diode Copyright 22 by EGmicro Corporation 5 /

7 7. Electrical Characteristics EG32 datasheet 7. Absolute maximum ratings TA=25 unless otherwise specified Symbol Parameter Conditions Min Max Unit VB Bootstrap supply V VS Bootstrap return V High side drive output V Low side drive output V VCC Supply voltage V High side input V Low side input V TA Ambient temperature Tstr Storage temperature TL Lead temperature T=S - 3 Note:Exceeding extreme conditions may permanently damage the chip. EG32 s reliability may be affected running at the extreme conditions for a long time. Copyright 22 by EGmicro Corporation 6 /

8 7.2 Recommended operating conditions EG32 datasheet TA=25,=5V, CL=nF,unless otherwise specified Parameter Symbol Conditions Min TYP Max Unit Supply voltage V Quiescent current Icc All input pins is floating,=5v ma Logic input voltage Vin(H) & V Logic input voltage Vin(L) & -.3. V Logic input bias current Iin(H) Vin=5V ua Logic input bias current Iin(L) Vin=V - - ua UV Turn on threshold voltage of (on) V Turn off threshold voltage of (off) V Switching time characteristics for Turn on propagation delay Ton See the Figure ns Turn off propagation delay Toff See the Figure ns Turn on rise time Tr See the Figure ns Turn off fall time Tf See the Figure ns Switching time characteristics for Turn on propagation delay Ton See the Figure ns Turn off propagation delay Toff See the Figure ns Turn on rise time Tr See the Figure ns Turn off fall time Tf See the Figure ns Dead time Dead time DT See the Figure7-3, and CL= ns Drive Capability Output high short circuit pulsed current IO+ Vo=V,VIN=VIH PW us A Output low short circuit pulsed current IO- Vo=5V,VIN=VIL PW us.8 - A Copyright 22 by EGmicro Corporation 7 /

9 7.3 Timing Diagram EG32 datasheet 5% 5% 5% 5% Ton Tr Toff Tf Ton Tr Toff Tf 9% 9% 9% 9% % % % % Figrue7-. Switching time waveform definitions of Figrue7-2. Switching time waveform definitions of 5% 5% 5% 5% 9% DT 9% % DT % Figure7-3. Dead time waveform definitions Copyright 22 by EGmicro Corporation 8 /

10 8. Function Description EG32 datasheet 8. Supply voltage and UV When considering there is enough driving voltage to drive the power MOSFET, the recommended VCC operating voltage of EG32 is between 2V to 5V. The EG32 has an internal under voltage lockout protection block between VCC and GND pins, when VCC bias voltage is lower than the V, the EG32 holds both the and outputs low, regardless of the status of the and. 8.2 Input stage and Output stage The EG32 includes a combined logic inputs, dead time, under voltage lockout, high voltage level shifter, bootstrap circuit, high current Darlington output stage. the input pins of EG32 features typical high threshold of 2.5V and typical low threshold of.v,the input pins are conveniently drive with logic level PWM control signals from MCU digital controller device. Each output stage in EG32 is capable of supplying.8a peak source and A peak sink current, floating high side driver in bootstrap operation is up to VDC. The EG32 features excellent propagation delay between input and output. In low side driver, with 5nS turn on propagation delay is over to, with 5ns turn off propagation delay is over to. In high side driver, with 3ns turn on propagation delay is over to, with 4ns turn off propagation delay is over to. Input/Output Logic Relationship as shown in Figure 8-2: Figure 8-2. Input/Output logic relationship Copyright 22 by EGmicro Corporation 9 /

11 EG32 datasheet Input/Output Logic Table: Input Output (Pin4) (Pin3) (Pin7) (Pin5) From above logic table view, Case A: when goes high and goes low, will output high to turn on high side MOSFET and will output low to turn off low side MOSFET. Case B: when goes low and goes high, will output low to turn off high side MOSFET and will output high to turn on low side MOSFET. Case C: when both of and are low or high at same time, interlock and dead time functions prevent both outputs from being turned on simultaneously. 8.3 Bootstrap The EG32 uses a bootstrap structure, which has the advantage of being simply and low cost. The Figure 8-3 will help to understand the operation of bootstrap circuit. The voltage at VCC forces current through the internal bootstrap diode or external bootstrap diode, bootstrap capacitor and low side MOSFET, which will charge the bootstrap capacitor to prepare it for driving the high side MOSFET. +48V External bootstrap diode FR7 8 VB VS VC Bootstrap capacitor +5V VCC 3 5 EG32 Figure 8-3. EG32 Bootstrap circuit structure Copyright 22 by EGmicro Corporation /

12 9. Package Information EG32 datasheet 9. SOP8 Dimension Copyright 22 by EGmicro Corporation /