LV5692P

No.A1876-11/14

• How to set USB overcurrent limit value (OCP)

OCP of the USB works when the voltage of RSNS is under VCC-0.3V. The peak current value of OCP is calculated as

follws: Ipeak(A) =0.3/R3. (ex.) R3=0.1

Ω → Ipeak=3A

• Since this IC does not detect the heat generation of the external FET,

keep the temperature of the FET as low as possible so as not to exceed

the eatings.

• Recommended FET: 2SJ650.

(note)The above values were obtained under typcal conditions. The

values may fluctuate in manufacturing processes due to external

resistor and IC variation.

• Warning

The internal circuit of USBGT and RSNS consist of components that support 5V. Do not bias 7V or above between

VCC and these pins to prevent the IC from destruction.

Caution for implementing LV5692P to a system board

The package of LV5692P is HZIP15J which has some metal exposures other than connection pins and heatsink as shown in the

diagram below. The electrical potentials of (2) and (3) are the same as those of pin 15 and pin 1, respectively. (2) (=pin 15) is the VCC

pin and (3) (=pin 1) is the ILM (regulator) output pin. When you implement the IC to the set board, make sure that the bolts and the

heatsink are out of touch from (2) and (3). If the metal exposures touch the bolts which has the same electrical potential with GND,

GND short occurs in ILM output and VCC. The exposures of (1) are connected to heatsink which has the same electrical potential with

substrate of the IC chip (GND). Therefore, (1) and GND electrical potential of the set board can connect each other.

Ipeak

Outout current

1

2

3

1

1

Heat-sink

Same potential

15PIN

Same potential

1PIN

Same potential

Heat-sink

Same potential

Heat-sink side

:Metal exposure

<Top view of HZIP15J>

Heat-sink side

Heat-sink

Same potential

:Metal exposure

<Side view of HZIP15J>