TDA3616

Features:

General
` One VP-state controlled regulator
` Battery detection circuit
` Regulator, reset and battery outputs operate during load dump
` Supply voltage range from -18 to +50 V
` Low quiescent current (battery detection switched off)
` High ripple rejection
` Dual reset output
` Backup circuit
` Adjustable reset delay timer.
Protections
` Reverse polarity safe (down to -18 V without high reverse current)
` Able to withstand voltages up to 18 V at the output (supply line may be short-circuited)
` ESD protected on all pins
` Load dump protection
` Foldback current limit protection for regulator
` The regulator output is DC short-circuited safe to ground and VP.



Pinout




Specifications

SYMBOL	PARAMETER	CONDITIONS	MIN.	MAX.	UNIT
VP	supply voltage operating jump start load dump protection	regulator on t 10 minutes t 50 ms; tr 2.5 ms	- - -	25 30 50	V V V
Vrp	reverse polarity voltage	non-operating	-	-18	V
VI(bat)p	positive pulse voltage at battery input	VP = 14.4 V; RI = 5 k	-	50	V
VI(bat)n	negative pulse voltage at battery input	VP = 14.4 V; RI = 10 k; Cl = 1 nF	-	-100	V
Ptot	total power dissipation	VP = 12.4 V	-	2.5	W
Tstg	storage temperature	non-operating	-55	+150
Tamb	ambient temperature	operating	-40	+105
Tj	junction temperature	operating	-40	+150

Description

The TDA3616 is a low power voltage regulator. TDA3616 contains the following:

· One fixed voltage regulator with a foldback current protection, intended to supply a microprocessor, that also operates during load dump

· A provision for use of a reserve supply capacitor that will hold enough energy for the regulator to allow a TDA3616 to prepare for loss of supply voltage

· Reset signals which can be used to interface with the microprocessor

· A supply pin of TDA3616 that can withstand load dump pulses and negative supply voltages

· Defined start-up behaviour; regulator will be switched on at a supply voltage higher than 7.5 V and off when the output voltage of the regulator drops below 2.4 V.