参数资料
| 型号： | NCP374MU075TXG |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC CTLR OVP POS/NEG 30V 12TLLGA |
| 标准包装： | 3,000 |
| 技术： | 混合技术 |
| 电路数： | 1 |
| 应用： | 通用 |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
NCP374
Vbus
tON
IN
Battery output
/FLAG
/DIR
/EN
Transciever
Downstream Vbu s connection
Figure 5. FLAG Status in Vbus Mode
Transciever
Logic Inputs
To enable Charge operation (Charge Mode), the DIR pin
shall be forced to low and EN to high. A high level on the
DIR pin disconnects IN pin from Vbus pin. DIR does not
overdrive an OVLO or UVLO fault (FLAG status is still
available).
Table 1. TABLE SELECTION OF CHARGE MODES
Protection
OVP @ VBUS (+28 V,
DIR
0
0
1
1
EN
0
1
0
1
MODE
NA
Charge
VBUS
Disable
? 28 V, OVLO 5.77 V)
NA
Yes
Yes
Yes (out off)
OCP (IN to VBUS)
NA
NA
Yes
NA
OCP (VBUS to IN)
NA
NA
NA
NA
Negative Voltage and Reverse Current
The device protects the system connected on IN pin from
negative voltage occurring on Vbus pin, down to ? 28 V.
When a negative voltage occurs, the IN pins are
disconnected from Vbus pins . This negative protection is
available in all modes
Thermal Shutdown Protection
The thermal threshold has been set at 150 ° C. FLAG is then
tied to low to inform the MCU.
As the thermal hysteresis is 30 ° C, the MOSFET will be
closed as soon the device temperature falls down to 120 ° C.
If the fault event is still present, the temperature increase
one more time and engages the thermal shutdown one more
time until fault event disappeared.
In case of internal overheating, the integrated thermal
shutdown protection allows to open the internal MOSFET
in order to instantaneously decrease the device temperature.
http://onsemi.com
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