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| 型号： | PWL6030B1AACMR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA187 |
| 封装： | 7 X 7 MM, 0.40 MM PITCH, GREEN, FCBGA-187 |
| 文件页数： | 82/97页 |
| 文件大小： | 937K |
| 代理商： | PWL6030B1AACMR |
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SWCS045B
– SEPTEMBER 2010 – REVISED JUNE 2011
The TWL6030 device allows the programming of four junction-temperature thresholds to increase the flexibility of
the system: in nominal conditions, the threshold triggering the interrupt can be set from 117
°C to 130°C. The HD
hysteresis is 10
°C minimum in typical conditions.
When an interrupt is triggered by the power-management software, immediate action must be taken to reduce
the amount of power drawn from the TWL6030 device (for example, noncritical applications must be closed).
The interrupt generation is debounced to avoid parasitic interrupt.
Thermal Shutdown
The thermal shutdown detector monitors the temperature on the die. If the junction reaches a temperature at
which damage can occur, a switch-off transition is initiated and a thermal shutdown event is written into a status
register.
To avoid interrupts at restart, the system cannot be restarted until the die temperature falls below the HD
threshold.
The thermal shutdown monitor function is integrated to generate an immediate, unconditional TWL6030 device
switch-off when an overtemperature condition exists. This function must be distinguished with the early warning
provided to software by the HD monitor function.
In the TWL6030 device, the threshold (Tj rising) of the thermal shutdown is 148°C nominal. The thermal
shutdown hysteresis is 10
°C in typical conditions. The reset generation is debounced. The thermal shutdown
function can be masked only in SLEEP state (the TMP_CFG_TRANS register) and in test mode.
CONTROL INTERFACE (I
2C , MSECURE, INTERRUPTS)
I2C interfaces
The TWL6030 device provides two serial control interfaces: One is the general-purpose I2C interface (CTL-I2C)
for read-and-write access to the configuration registers of all system resources, and the other is the serial control
interface (SR-I2C) dedicated to SmartReflex applications, such as dynamic voltage frequency scaling (DVFS) or
adaptive voltage scaling (AVS).
Both control interfaces comply with the HS-I2C specification and support the following features:
Mode: Slave only (receiver and transmitter)
Speed
– Standard mode (100 kbps)
– Fast mode (400 kbps)
– High-speed mode (limited to 2.4 Mbps maximum)
Addressing: 7-bit mode addressing device
They do not support the following features:
10-bit addressing
General call
Copyright
2010–2011, Texas Instruments Incorporated
83
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