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10 wcdma/gsm power consumption, 11 embodied battery charger – Rainbow Electronics UC864 User Manual

Page 16

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UC864-E/G Product Description

80281ST10034a Rev. 1

- 08/08/2008

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved

page 16 of 36

2.10 WCDMA/GSM Power consumption


The typical current consumption of the

Telit UC864-E/G

is:

Power off current (typical)

< 26

µ

A;

Stand–by current (WCDMA Idle)

< 23.2mA (<5.3mA using command AT+CFUN=5)

Stand–by current (GSM Idle)

< 15.0mA (<3.6mA using command AT+CFUN=5)

Operating current in WCDMA voice channel

< 690 mA @ worst network conditions

Operating current in GSM voice channel

< 317 mA @ worst network conditions

Operating current in WCDMA data channel

< 680 mA @ worst network conditions

Operating current in HSDPA channel

< 730 mA @ worst network conditions

Operating current in GPRS Class 12

< 790 mA @ worst network conditions

Operating current in EGPRS Class 12

< 560 mA @ worst network conditions

2.11 Embodied Battery charger


The battery charger is suited for 3.7V Li-Ion rechargeable battery (suggested capacity 500-1000mAH).
The Charger needs only a CURRENT LIMITED power source input and charges the battery directly
through VBATT connector pins.

Battery charger input pin

CHARGE

Battery pins

VBATT, GND

Battery charger input voltage min

5.0 V

Battery charger input voltage typ

5.5 V

Battery charger input voltage max

7.0 V

Battery charger input current max

400mA

Battery type

Li-Ion rechargeable


NOTE: If embodied battery charger is used, then a LOW ESR capacitor of at least 100

µ

F must be

mounted in parallel to VBATT pin.
NOTE: when power is supplied to the CHARGE pin, a battery must always be connected to the
VBATT pin of the UC864-E/G.