si8235 Silicon Laboratories, si8235 Datasheet
si8235
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si8235 Summary of contents
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... GNDI Si8233 DISABLE DT NC VDDI PWM NC VDDI Si8231 GNDI Si8234 DISABLE DT NC VDDI VIA VIB VDDI Si8232 GNDI Si8235 DISABLE NC NC VDDI Patents pending VIA VDDA VOA GNDA VDDI Control Gating UVLO VDDB VOB VIB GNDB GNDI Si8232/5 VDDA VOA GNDA ...
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Si823x 2 Preliminary Rev. 0.11 ...
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T C ABLE O F ONTENTS Section 1. Top-Level Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Si823x 1. Top-Level Block Diagrams VIA DT VDDI VDDI UVLO DISABLE VIB GNDI Figure 1. Si8230/3 Two-Input High-Side/Low-Side Isolated Drivers PWM LPWM DT VDDI VDDI UVLO DISABLE LPWM GNDI Figure 2. Si8231/4 Single-Input High-Side/Low-Side Isolated Drivers 4 VDDI UVLO DT ...
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VIA VDDI VDDI UVLO DISABLE VIB GNDI Figure 3. Si8232/5 Dual Low-Side Isolated Drivers Preliminary Rev. 0.11 VDDI VDDA VOA UVLO GNDA VDDI VDDB VOB UVLO GNDB Si8232/5 Si823x 5 ...
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Si823x 2. Pin Descriptions Table 1. Si8230/3 Two-Input HS/LS Isolated Driver Pin Name 1 VIA Non-inverting logic input terminal for Driver A. 2 VIB Non-inverting logic input terminal for Driver B. 3 VDDI Input-side power supply terminal; connect to a ...
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Table 2. Si8231/4 PWM Input HS/LS Isolated Driver (Continued) 8 VDDI Input-side power supply terminal; connect to a source of 4 GNDB Ground terminal for VOB driver output. 10 VOB Driver B output (low-side driver). 11 ...
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Si823x 3. Electrical Specifications Table 4. Electrical Characteristics 4.5 V < VDDI< 5.5 V, VDDA = VDDB = –40 to +125 °C. Typical specs at 25 °C Parameter DC Specifications Input-side power supply voltage Driver supply ...
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Table 4. Electrical Characteristics (Continued) 4.5 V < VDDI< 5.5 V, VDDA = VDDB = –40 to +125 °C. Typical specs at 25 °C Parameter VDDA, VDDB positive-going undervoltage threshold VDDA, VDDB negative-going undervoltage threshold AC ...
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Si823x 3.1. Test Circuits Figures 4 and 5 depict sink current and source current test circuits. INPUT Measure 50 ns VDDI GND 200 ns INPUT WAVEFORM INPUT Measure 50 ns VDDI GND 200 ns INPUT WAVEFORM Figure 5. Source Current ...
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Table 5. Absolute Maximum Ratings Parameter Storage temperature Ambient temperature under bias Input-side supply voltage Driver-side supply voltage Voltage on any pin with respect to ground (not including IIN, IOUT) Lead solder temperature (10 sec.) DC isolation (output to output) ...
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... The Si823x ISOdrivers are dual output drivers for isolated high-side/low-side and dual low-side gate drive applications. These products utilize Silicon Laboratories' proprietary silicon isolator technology, which enables fast propagation time while withstanding 600 V dc from the input to either output and between outputs. The operation of this isolator is analogous to that of an optocoupler, except that an RF carrier is modulated instead of light ...
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... High-side/Low Side Si8232 Dual Low Side Si8233 High-side/Low Side Si8234 High-side/Low Side Si8235 Dual Low Side 5.2. Device Behavior Table 9 contains truth tables for the Si8230/3, Si8231/4, and Si8232/5 families. Si8230/3 (High-Side/Low-Side) Truth Table VIA, VIB Inputs VDDI State Disable VOA/VOB H Powered ...
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Si823x 5.3. Power Supply Connections Isolation requirements mandate individual supplies for VDDI, VDDA, and VDDB. The decoupling caps for these supplies must be placed as close to the VDD pins of the Si823x as possible. The optimum values for these ...
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Equation 1 and Equation 2 are graphed in Figure 7 where the points along the load line represent the package dissipation-limited value of CL for the corresponding switching frequency. 10,000 1,000 100 10 0 1,000 Figure 7. Max Load vs. ...
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Si823x UVLO+ UVLO- VDDI UVLO+ UVLO- VDDA VIA DISABLE tSD tSTART VOA Figure 8. Device Behavior during Normal Operation and Shutdown 5.6.3. Control Inputs VIA, VIB, and PWM inputs are high-true, TTL level-compatible logic inputs. A logic high signal on ...
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The device driving VIA and VIB should provide a minimum dead time of TDD to avoid activating overlap protection. Input/output timing waveforms for the two-input drivers are shown in Figure 8, and dead time waveforms are shown in Figure 9. ...
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Si823x 6. Applications The following examples illustrate typical circuit configurations using the Si823x. 6.1. High-Side/Low-Side Driver Figure 10A shows the Si8230/3 controlled using the VIA and VIB input signals, and Figure 10B shows the Si8231/4 controlled by a single PWM ...
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... Figure 11 shows the Si823x configured as a dual low-side driver. Note that the drain voltages of Q1 and Q2 can be referenced to a common ground or to different grounds with as much as 600 V dc between them. PH1 PH2 CONTROLLER I/O Figure 11. Si8235 in a Dual Low-Side Driver Application VDDI VDDI C1 VOA 10 µF ...
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... Ordering Guide Part Number Inputs Si8230-A-IS VIA, VIB Si8231-A-IS PWM Si8232-A-IS VIA, VIB Si8233-B-IS VIA, VIB Si8234-B-IS PWM Si8235-B-IS VIA, VIB 20 Configuration Peak Output Current (A) High Side/Low Side High Side/Low Side 0.5 Dual Low Side High Side/Low Side High Side/Low Side 4.0 Dual Low Side Preliminary Rev ...
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Package Outline: Wide Body SOIC Figure 12 illustrates the package details for the Quad-Channel Digital Isolator. Table 10 lists the values for the dimensions shown in the illustration. All packages are Pb-free and RoHS compliant. Moisture sensitivity level is ...
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... Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where per- sonal injury or death may occur. Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. The sale of this product contains no licenses to Power-One’ ...