The current output also allows the IMON pins of multiple TPS1685x devices to be tied together to get the total current in a parallel configuration. The IMON signal can be converted to a voltage by dropping it across a resistor at the point of monitoring. The user can sense the voltage (...
I Output feedback: Connect to the output rail (external MOSFET source). Internally used to determine the MOSFET VDS voltage for power limiting, and to control the PGD indicator. O Gate drive output: Connect to the external MOSFET's gate. This pin's voltage is typically 12 V above the ...
@madires: hoping to get a small sanity check. Updated the idea with the MOSFET configuration exchanged for an N-channel and lowering the VCC to the gate driver (and thereby the Vgs) using a 7812, and pull-downs on the gate driver inputs. Looking better?
TrenchFET SOA curve is caused by a negative temperature coefficient of the Vth voltage. At low Vgs voltages and high Vds voltages, there is tendency for local hotspots to form on certain cells because the negative temperature coefficient for Vth overpower...
Connect RIMON to ground. O Voltage output proportional to the load current (0V–3.0V). I Output voltage sensor for monitoring Hot Swap MOSFET power. Connects to the source terminal of the hot-swap N channel MOSFET. I Overvoltage comparator input. Connects to resistor divider. HGATE and ...
Charge pump output to drive both adapter input n-channel MOSFET (ACFET) and reverse blocking n-channel MOSFET (RBFET). ACDRV voltage is 6 V above CMSRC to turn on ACFET/RBFET when ACOK goes HIGH. Place a 4 kΩ resistor from ACDRV to the gate of ACFET and RBFET limits the in-...
(sinking) Turn off time Maximum duration of OV strong pull down VOV = 5 V VOV = 0 → 2.5 V to VGS < 1 V, CGATE = 2 nF Gate pull down 1 µA 2 µs 40 100 220 Output Voltage Feedback (OUT) IOUT Bias current Load Current Monitor (IMON) Output VOUT = VVCC, VUVEN = ...
Connect RIMON to ground. O Voltage output proportional to the load current (0V–3.0V). I Output voltage sensor for monitoring Hot Swap MOSFET power. Connects to the source terminal of the hot-swap N channel MOSFET. I Overvoltage comparator input. Connects to resistor divider. HGATE and ...
Internally used to determine the MOSFET VDS voltage for power limiting and to monitor the output voltage. GATE 2 Gate drive output Connect to the external MOSFET's gate. SENSE Current sense input 3 The voltage across the current sense resistor (RSNS) is measured from VIN_K to this pin. If...
Charge pump output to drive both adapter input n-channel MOSFET (ACFET) and reverse blocking n-channel MOSFET (RBFET). ACDRV voltage is 6 V above CMSRC to turn on ACFET/RBFET when ACOK goes HIGH. Place a 4 kΩ resistor from ACDRV to the gate of ACFET and RBFET limits the in-...