PCF50603 Datasheet, PDF (18/28 Pages) NXP Semiconductors – Controller for power supply and battery management

Philips Semiconductors
Controller for power supply
and battery management
Preliminary specification
PCF50603
handbook, full pagewidth
V
VBAT
VLOW_BAT
Vhys
LOWBAT
interrupt
tdebounce
Fig.12 BVM and LOWBAT behaviour.
t
MDB689
8.9 Temperature high sensor (TS)
The TS monitors the junction temperature of the
PCF50603. It offers the following features:
• Fixed temperature threshold
• Hysteresis and debounce filter built in to prevent fast
cycling
• The TS is enabled in ACTIVE state, in all other states
the TS is disabled.
The behaviour of the TS is shown in Figure 13.
A HIGHTMP interrupt is generated when the temperature
threshold is passed for more than 62 ms (debouncing
time). When a HIGHTMP interrupt is generated the host
controller should initiate a transition to STANDBY state.
In case the host controller does not initiate a transition to
the STANDBY state within 1 second after the interrupt
occurred, the OOC forces the PCF50603 to the STANDBY
state in order to prevent damage to the circuit.
The hysteresis and debounce time have been built in to
prevent fast cycling of the HIGHTMP signal.
The TS can not be disabled via the I²C-bus.
handbook, full pagewidth
Tj
150 °C
130 °C
HIGHTMP
interrupt
2003 Oct 31
Thys
tdebounce
tdebounce
Fig.13 TS behaviour.
18
t
MDB690