mic4104yml Micrel Semiconductor, mic4104yml Datasheet
mic4104yml
Related parts for mic4104yml
mic4104yml Summary of contents
Page 1
General Description The MIC4103 and MIC4104 are high frequency, 100V Half Bridge MOSFET drivers with faster turn-off characteristics than the MIC4100 and MIC4101 drivers. They feature fast 24ns propagation delay times and 6ns driver fall times. The low-side and high-side ...
Page 2
... Micrel Ordering Information Part Number MIC4103YM MIC4104YM MIC4103YML (coming soon) MIC4104YML (coming soon) Pin Configuration 8-Pin SOIC (M) Pin Description Pin Number Pin Name 1 VDD VSS 8 LO October 2007 Input Junction Temp. Range CMOS –40° to +125°C TTL – ...
Page 3
Micrel Absolute Maximum Ratings Supply Voltage ( – ...................... -0.3V to 18V Input Voltages ( ......................... -0. LI, HI Voltage .............................. -0. ...
Page 4
Micrel Symbol Parameter Bootstrap Diode V Low-Current Forward Voltage DL V High-Current Forward Voltage DH R Dynamic Resistance D LO Gate Driver V Low Level Output Voltage OLL V High Level Output Voltage OHL I Peak Sink Current OHL I ...
Page 5
Micrel Symbol Parameter Switching Specifications (cont.) t Output Rise Time ( Output Fall Time (3V to 9V) F Minimum Input Pulse Width that t PW Changes the Output Bootstrap Diode Turn- Turn-Off Time ...
Page 6
Micrel Timing Diagrams Note: All propagation delays are measured from the 50% voltage level. October 2007 6 MIC4103/4104 M9999-100107-B ...
Page 7
Micrel Typical Characteristics October 2007 7 MIC4103/4104 M9999-100107-B ...
Page 8
Micrel Typical Characteristics October 2007 8 MIC4103/4104 M9999-100107-B ...
Page 9
Micrel Functional Characteristics Functional Description The MIC4103 is a high voltage, non-inverting, dual MOSFET driver that is designed to independently drive both high-side and low-side N-Channel MOSFETs. The block diagram of the MIC4103 is shown in Figure 1. Both drivers ...
Page 10
Micrel Figure 2. MIC4103 Supply Current vs. Input Voltage The MIC4104 has a TTL compatible input range and is recommended for use with inputs signals whose amplitude is less than the supply voltage. The threshold level is independent of the ...
Page 11
Micrel Power Dissipation Considerations Power dissipation in the driver can be separated into three areas: • Internal diode dissipation in the bootstrap circuit • Internal driver dissipation • Quiescent current dissipation used to supply the internal logic and control functions. ...
Page 12
Micrel and gate to drain capacitance of the external MOSFET. Figure 7 shows a simplified equivalent circuit of the MIC4103 driving an external MOSFET. Vdd HB Ron Roff HS Figure 7. MIC4103 Driving an External MOSFET ...
Page 13
Micrel Total power dissipation and Thermal Considerations Total power dissipation in the MIC4103 or MIC4104 is equal to the power dissipation caused by driving the external MOSFETs, the supply current, and the internal bootstrap diode Pdiss Pdiss Pdiss ...
Page 14
Micrel in and around the MIC4103 and MIC4104 drivers require proper placement and trace routing of all components. Improper placement may cause degraded noise immunity, false switching, excessive ringing or circuit latch-up. Figure 9 shows the critical current paths when ...
Page 15
Micrel C B Vdd HB C VDD Level HI HO shift MIC4103 Vss Figure 11. Synchronous Buck Converter Power Stage Top Side Figure 12. Typical Layout of a Synchronous Buck Converter Power Stage October 2007 A typical ...
Page 16
Micrel Package Information October 2007 8-Pin SOIC (M) ® 8-Pin MLF (ML) 16 MIC4103/4104 M9999-100107-B ...
Page 17
Micrel MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility ...