Datasheet AEM00940 (E-peas) - 10

DATASHEET AEM00940 6. Functional Block Diagram
LBOOST VBOOST CSRC
10μH
CBOOST
10μF 22μF
C T T R S S F O OOS
M9 M2
BU B BO
Primary
W PRIM S BATT
battery
VBATT
(optional)
Optional
Battery control
VBUCK R8 FB_PRIM_U
Supercap Balance
BAL
or Primary control Battery
R7
control
FB_PRIM_D VBUCK R9 SRC_LVL_U Optional
M7 SRC LEVEL
HVOUT R10
Control HV Load
SRC_LVL_D R6 CHV
HLDO
FB_HV
10μF control
VBUCK SRC_LVL_RANGE[1] R5 GND VBUCK SRC_LVL_RANGE[0] GND SRC
PV cell M1 M4 M5
LBUCK VBUCK SWBUCK
Cold-start 10μH Boost Buck M3 control control M6
BUCK
Vref
CBUCK
10μF
VBOOST
LLDO
VBOOST
control M8
R4 Optional LVOUT
LV
STO_OVDIS + CLV
Load 10μF
- R3 STO_RDY +
Finite
-
State
R2 STATUS[1:0]
Machine
STO_OVCH + - ENHV VBUCK R1 GND
State
ENLV VBUCK
Monitor
GND CFG[2] VBUCK GND CFG[1] VBUCK GND CFG[0] VBUCK GND GND Figure 3: Functional block diagram 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 10 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