NCP370GEVB ON Semiconductor, NCP370GEVB Datasheet - Page 9

• Manufacturer Part Number: NCP370GEVB
• Description: EVAL BOARD FOR NCP370G
• Manufacturer: ON Semiconductor

Specifications of NCP370GEVB

• Design Resources: NCP370GEVB BOM NCP370GEVB Gerber Files NCP370GEVB Schematic
• Main Purpose: Overvoltage Protection
• Embedded: No
• Utilized Ic / Part: NCP370
• Primary Attributes: Overvoltage Protected up to 28V and down to -28V
• Secondary Attributes: Reverse Mode
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP370G
• Other names: NCP370GEVBOS

current is limited up to I
capacitor charge and limit inrush current. If the I
threshold is exceeded over 1.2 ms, the device enters
OCP burst mode until the overcurrent event disappears.
Thermal Shutdown Protection
shutdown protection turns off the internal MOSFETs in
order to instantaneously decrease the device temperature.
The thermal threshold has been set at 150°C FLAG then
goes low to inform the MCU.
on as soon the device temperature falls below 120°C.
engages the thermal shutdown again until the fault event
disappears.
At power up (accessory is plugged on input pins), the
In case of internal overheating, the integrated thermal
As the thermal hysteresis is 30°C, the MOSFETs will turn
If the fault event is still present, the temperature increase
FLAG
REV
I
V
DIR
REV
out
ID
V
in
lim
for 1.2 ms (typical), to allow
ton
REV
Figure 6. Overcurrent Protection Sequence
tstart
Drive Current in Accessory
REV
http://onsemi.com
t
RRD
lim
t
REG
9
mode is engaged. See Figure 6.
PCB Recommendations
PCB rules must be respected to properly evacuate the heat
out of the silicon.
package should be connected to an isolated PCB area to
increase the heat transfer if necessary.
potential or GND other than the isolated extra copper
surface.
PAD1, Figure 7 shows the copper area required with respect
to R
After 1 ms following the plug in of the accessory, the OCP
Since the NCP370 integrates the 1. 3A N−MOSFETs,
From an applications standpoint, PAD1 of the NCP370
In any case, PAD1 should be not connected to any other
To assist in the design of the transfer plane connected to
qJA
.
Accessory ID
Detection
I
lim