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CM431GBCM89 Datasheet(PDF) 7 Page - Champion Microelectronic Corp. |
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CM431GBCM89 Datasheet(HTML) 7 Page - Champion Microelectronic Corp. |
7 / 12 page CM431 LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR 2006/10/11 Rev.1.4 Champion Microelectronic Corporation Page 7 APPLICATION INFORMATION V B OB = (1 + R1/R2) × VBREF Note: R should provide 1mA cathode current to the CM431 of minimum V B BATT Figure 4. Shunt Regulator Figure 5. Single –Supply Comparator With Temperature compensated threshold. V B OB = (1 + R1/R2) × VBREF Figure 6. High-Current Shunt Regulator Figure 7. Crowbar Circuit V B BATTB R1 0.1% V B REFB V B onB ≈ 2V V B off B≈ VBBATTB GND V B thB = 2.5V Input V B OB V B BATTB R2 0.1% V B OB R* R1 R2 V B BATTB CM431 CM431 CM431 CM431 V B BATTB R1 R2 C V B OB V B OB |
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