參數(shù)資料
型號(hào)： PCF50603
廠商： NXP Semiconductors N.V.
英文描述： Controller for power supply and battery management
中文描述： 控制器電源和電池管理
文件頁(yè)數(shù)： 18/28頁(yè)
文件大小： 147K
代理商： PCF50603
2003 Oct 31
18
Philips Semiconductors
Preliminary specification
Controller for power supply
and battery management
PCF50603
handbook, full pagewidth
MDB689
VBAT
V
t
LOWBAT
interrupt
VLOW_BAT
tdebounce
Vhys
Fig.12 BVM and LOWBAT behaviour.
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 I
2
C-bus.
handbook, full pagewidth
MDB690
150
°
C
Tj
t
HIGHTMP
interrupt
130
°
C
tdebounce
tdebounce
Thys
Fig.13 TS behaviour.
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