Wavecom GX64 Spécifications télécharger pdf (Page 12)

3.2 Power state control of the Wireless CPU

There are a maximum of six signals that affects the HW power state of the GR/GS64

family of Wireless CPUs; four HW and two SW:

• ON/OFF (HW, all Wireless CPUs)

• CHG_IN (HW, all Wireless CPUs)

• PON_H (HW, GS64 only)

• ALARM (HW, GS64 and GR64002 as external, all as internal)

• AT+CFUN (SW, all Wireless CPUs)

• AT*E2RESET (SW, all Wireless CPUs)

Under normal operating conditions, the die temperature should not

exceed 125°C. In the event of an external fault or as a result of device

misuse, the die temperature could exceed this value by a large margin.

Should the die temperature exceed 155°C while the unit is powered up,

the thermal protection circuit will shut-down all functions and remain

disabled until the temperature drops below 130°C, at which point the

device can be restarted. This feature is listed as TP (Thermal

Protection) througout this document.

CAUTION

To power up the hardware VCC must be within 3.2V to 4.5V, and the Power

Management ASIC die temperature must be below 130°C.

Figure 5: GR/GS64 HW On/Off Sequence Logic

Gx64 APPLICATION NOTE

This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.

Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable

Power Management

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