Datasheet AEM00940 (E-peas) - 8

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DATASHEET AEM00940 4. Typical Electrical Characteristics at 25 °C
Symbol Parameter Conditions Min Typ Max Unit Input voltage and input power PSRC_CS Source power required for cold start. During cold start 3 µW During cold start 0.38 4.5 VSRC Input voltage of the energy source. V After cold start 0.05 4.5 VSRC_REG Regulation voltage of the source 0.05 4.5 V ISRC Input current of the energy source 110 mA DC-DC converters VBOOST Output of the boost converter. During normal operation 2.2 4.5 V VBUCK Output of the buck converter. During normal operation 2 2.2 2.5 Storage element Storage element is a rechargeable battery 2.2 4.5 V VBATT Voltage on the storage element. Storage element is a capacitor 0 4.5 V T Time before shutdown once STATUS[1] has crit been asserted. 400 600 800 ms VPRIM Voltage on the primary battery. 0.6 4.5 V Iprim Current from the primary battery. 20 mA V Feedback for the minimal voltage level on FB_PRIM_U the primary battery 0.15 1.1 V VSRC_LVL_U Voltage on the SRC_LVL_U pin 0 1.35 V Maximum voltage accepted on the storage VOVCH element before disabling the boost see Table 9 2.3 4.5 V converter. Minimum voltage required on the storage VCHRDY element before enabling the LDOs after a see Table 9 2.25 4.45 V cold start. Minimum voltage accepted on the storage VOVDIS element before switching to primary battery see Table 9 2.2 4.4 V or entering into a shutdown. Low-Voltage LDO regulator VLV Output voltage of the low-voltage LDO. see Table 9 1.2 1.8 V Ilv Load current from the low-voltage LDO. 0 20 mA VHV Output voltage of the high-voltage LDO. see Table 9 1.8 Vbatt - 0.3 V Ihv Load current from the high-voltage LDO. 0 80 mA Logic high (VOH) 1.98 V STATUS[1:0] Logic output levels on the status pins. BATT V Logic Low (VOL) -0.1 0.1 V Table 6: Electrical characteristics DS D _A _ E A M0 M 094 9 0_Rev e 1.0. 0 0 Copyr y ight h © 2022 2 e-pe p as a SA S Confidential 8 Document Outline 1. Introduction 2. Absolute Maximum Ratings 3. Thermal Resistance 4. Typical Electrical Characteristics at 25 °C 5. Recommended Operation Conditions 6. Functional Block Diagram 7. Theory of Operation 7.1. Deep sleep & Wake up modes 7.1.1. Supercapacitor as a storage element. 7.1.2. Battery as a storage element. 7.2. Normal mode 7.2.1. Boost 7.2.2. Buck 7.2.3. LDO outputs 7.3. Overcharge mode 7.4. Primary mode 7.5. Shutdown mode 7.6. Balun for dual-cell supercapacitor 8. System configuration 8.1. Battery and LDOs configuration 8.1.1. Custom mode 8.2. Source voltage configuration 8.3. Primary battery configuration 8.4. No-battery configuration 8.5. Storage element information 8.6. External inductors information 8.7. External capacitors information 9. Typical Application Circuits 9.1. Example circuit 1 9.2. Example circuit 2 10. Performance Data 10.1. BOOST conversion efficiency for LBOOST = 10 µH 10.2. BOOST conversion efficiency for LBOOST = 22 µH 10.3. Quiescent current 10.4. High-voltage LDO regulation 10.5. Low-voltage LDO regulation 10.6. High-voltage LDO efficiency 10.7. Low-voltage LDO efficiency 11. Schematic 12. Layout Package Information 13.1. Plastic Quad Flatpack No-lead (QFN 28-pin 5x5mm) 13.2. Board Layout 14. Revision History