LDLL16ENTR datasheet(7/102 Pages) STMICROELECTRONICS

Part #	LDLL16ENTR

Description	16-channel LED driver with automotive CAN FD light interface

PDF	102 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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7 / 102 page

Device supply concept

The LDLL16EN IC is supplied through VS pin, connected to the car battery through an external diode for reverse

polarity protection.

The supply voltage is in the range of [VS_MIN ÷ 40] V, avoiding any additional load dump protection on power

supply stage. On top of that, no device reset will occur in the supply voltage range of [3 ÷ VS_MIN] V, to keep

digital content during cold cranking pulse.

In that range, [3 ÷ VS_MIN] V, and till POR threshold (V3V3_POR_L) is not reached, full device protection is granted

and digital part (register content and state machine) is kept alive.

An under-voltage threshold (VS_UV) is implemented to avoid wrong output current due to low battery and, till

device leaves the voltage range between under-voltage VS_UV and under-voltage reset VS_UV_RST, some

parameters may deviate versus specified value.

LDLL16EN

Device supply concept

DS14111 - Rev 5

page 7/102

LDLL16ENTR Datasheet(PDF) 7 Page - STMicroelectronics