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参数资料
| 型号： | TPS65052RSMT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封装： | 4 X 4 MM, 0.40 MM PITCH, GREEN, PLASTIC, QFN-32 |
| 文件页数： | 16/40页 |
| 文件大小： | 1234K |
| 代理商： | TPS65052RSMT |
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Push-Button ON-OFF (PB-ON-OFF)
PB_IN
PB_OUT
Debounce
32ms
MinPulse
Width32ms
32ms
JK-
Flipflop
Default
Low
Vbat
RESPWRON
Short-Circuit Protection
Thermal Shutdown
SLVS710A – JANUARY 2007 – REVISED AUGUST 2007
The TPS65050 provides a PB-ON-OFF functionality instead of supervising a voltage with the threshold and
hysteresis inputs. The output at PB_OUT is held low after voltage is applied at VCC. Only after the input at PB-IN
is pulled high once, the output driver at PB_OUT goes to its inactive state, driven high with its external pullup
resistor. Further low-high pulses at PB-IN toggles the status of the PB_OUT output, and can be used to
shutdown and start the converter with a single push on a button by connecting the PB_OUT output to the enable
input of the converters.
Figure 22. Push-Button Circuit
All outputs are short-circuit protected with a maximum output current as defined in the Electrical Characteristics.
As soon as the junction temperature, TJ, exceeds 150°C (typically) for the DC/DC converters, the device goes
into thermal shutdown. In this mode, the P and N-Channel MOSFETs are turned-off. The device continues its
operation when the junction temperature falls below the thermal shutdown hysteresis again. A thermal shutdown
for one of the DC/DC converters disables both converters simultaneously.
The thermal shutdown temperature for the LDOs are set to typically 140
°C. Therefore, a LDO which may be
used to power an external voltage never heats up the chip high enough to turn off the DC/DC converters. If one
LDO exceeds the thermal shutdown temperature, all LDOs turns off simultaneously.
Copyright 2007, Texas Instruments Incorporated
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Product Folder Link(s): TPS65050, TPS65051, TPS65052 TPS65054, TPS65056
相关PDF资料 |
PDF描述 |
|---|---|
| TPS65054RSMR | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS65056RSMTG4 | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS65050RSMT | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS65052RSMTG4 | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| TPS65056RSMR | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
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| TPS65052RSMTG4 | 功能描述:PMIC 解决方案 6Ch Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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| TPS650531RGET | 功能描述:PMIC 解决方案 5Ch Pwr Mgmt IC w/2 Step-Down Converters RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS650532RGER | 功能描述:PMIC 解决方案 5Ch Power Mgmt IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS650532RGET | 功能描述:PMIC 解决方案 5Ch Power Mgmt IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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