Philips Semiconductors
Multiple voltage regulator with battery
detection
Objective specification
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.
GENERAL DESCRIPTION
The TDA3616 is a low power voltage regulator. It 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
microcontroller to prepare for loss of supply voltage
• Reset signals which can be used to interface with the
microprocessor
• A supply pin 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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
Supply
VP
Iq
supply voltage
operating
jump start
load dump protection
quiescent supply current
Regulator
Vo
output voltage
Vdrop
drop-out voltage
CONDITIONS
MIN. TYP. MAX. UNIT
regulator on
5.6 14.4 25
V
t ≤ 10 minutes
−
−
30
V
t ≤ 50 ms; tr ≥ 2.5 ms
standby mode
−
−
50
V
−
95
125 µA
standby mode; Tamb = 25 °C
−
95
120 µA
0.5 mA ≤ IREG ≤ 150 mA;
4.8 5.0
7 V ≤ VP ≤ 18 V; Tamb = 25 °C
0.5 mA ≤ IREG ≤ 150 mA;
7 V ≤ VP ≤ 18 V
4.75 5.0
IREG = 30 mA;
18 V ≤ VP ≤ 50 V; load dump
4.75 5.0
IREG = 150 mA; VP = 5 V;
Tamb = 25 °C
−
0.6
5.2 V
5.25 V
5.25 V
1.0 V
2000 Jan 14
2