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FIBOCOM L610 Series Hardware Guide
Page 29 of 59
Burst transmit
Burst transmit
min:3.3V
VBAT
Ripple
300mV
Drop
VBAT
3.4V
Figure 3-3 Power limit
Note:
Clients are recommended to add a TVS (recommended model: SMBJ5.0A/ESD5651N) to the
VBAT input, so as to improve the anti-surge capability of the product.
3.2.2 1.8V Output
L610 modules output 1.8V voltage through the VDD_EXT for use of the internal digital circuits of the
modules. The voltage is the logic level voltage of the module and can be used to indicate that the module
is on or off, or for external low current (< 80mA) circuit. If it is not in use, keep it in floating status. The logic
level of VDD_EXT is defined as follows:
Parameter
Minimum
Typical
Maximum
Unit
VDD_EXT
1.71
1.8
1.89
V
3.2.3 Power Consumption
The power consumption of L610 module in the case of 3.8V power supply is shown in the following table:
Parameter Mode
Condition
Average Typ.Current
(mA)
I
off
Power off Module power off
0.015
0.07 (L610-CN-31/32
series)
I
sleep
Airplane
CFUN=4
1.2
GSM
MFRMS=5
2.2
LTE FDD Paging cycle #128 frames
2.2
LTE TDD Paging cycle #128 frames
2.2
I
GSM-RMS
GSM
GSM850 PCL5
260
EGSM900 PCL5
260