User's Manual
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
ELS61-AUS Hardware Interface Description
3.2 Power Up/Power Down Scenarios
73
ELS61-AUS_HID_v00.031 2016-06-03
Confidential / Preliminary
Page 55 of 102
Figure 29: Sample circuit for applying power using an external µC
Figure 30: Sample circuit for applying power using an external voltage supervisory circuit
3.8V
Module
Place C2-C5 close to module
µcontroller
ENABLE
VBATT
VBATT_IN
C1
100nF
C2 47µF,X5R
C3 47µF,X5R
C4 47µF,X5R
C5 47µF,X5R
C6 47µF,X5R
R1
100k
R2
100k
R3
100k
R6
10k
T1
T2
IRML6401
BC847
TBD.
ON threshold: 2940mV
Notes:
OFF threshold: 2800mV
place capacitors close
to module pads
3.8V_IN
VBATT
Module
C1 100nF
C2 47uF
C3 47uF
C4 47uF
C5 47uF
C6 47uF
C7
1
µF
GND
3
2
ROUT
1
TIME
5
IN
VREF
IC1
R3
3,3k
R5
100k
R6
100k
T1
FDV302P
T2
IRML6401
NCP303LSN 28T1G