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Part: TDA3604
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INTEGRATED CIRCUITS
DATA SHEET
TDA3604 Multiple voltage regulator with external reset delay and switch
Preliminary specification Supersedes data of 1995 Feb 16 File under Integrated Circuits, IC01 1995 Oct 04
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with external reset delay and switch
FEATURES · One VP state controlled regulator (regulator 2) · Regulator 2, reset and ignition buffer operates during load dump and thermal shutdown · Separate control pins for switching regulator 1 and the power switch · Supply voltage range of -18 to 50 V (operating from 9.75 V) · Low reverse current of regulator 2 · Low quiescent current (when regulator 1 is switched off, standby) · Ignition input/output · Reset output · Reset delay time adjustable · High ripple rejection · Power switch · Separate supply for the power switch. PROTECTIONS · Reverse polarity safe (down to -18 V without high reverse current) · Able to withstand voltages up to 18 V at the outputs (supply line may be shortened) · ESD protected on all pins · Thermal protection · Load dump protection · Foldback current limit protection for regulators 1 and 2 · Delayed second current limit protection for the powerswitch · The regulator outputs and the power switch are DC short-circuited safe to ground and VP. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA3604 DBS13P DESCRIPTION GENERAL DESCRIPTION
TDA3604
The TDA3604 is a multiple output voltage regulator with a power switch, intended for use in car radios with or without a microcontroller. It contains one fixed voltage regulator with a foldback current protection (regulator 1) and one fixed voltage regulator (regulator 2), intended to supply a microcontroller, that also operates during load dump and thermal shutdown. There is a power switch with protections, operated by an enable input. The reset and ignition outputs can be used to interface by the microcontroller. The reset-signal can be used to call up the microcontroller and the ignition output indicates ignition voltage available. Both supply pins can withstand load dump pulses and negative supply voltages. Regulator 2 will be switched on at a supply voltage >6.5 V and off at a voltage of regulator 2 <1.9 V.
VERSION SOT141-6
plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm)
1995 Oct 04
2
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with external reset delay and switch
QUICK REFERENCE DATA SYMBOL Supply VP supply voltage operating regulator 2 on jump start load dump protection Iq Tvj VREG1 VREG2 Vdrop(REG1) Power switch Vdrop(sw) IM Notes 1. Minimum operating voltage, only if VP has exceeded 6.5 V. 2. The drop-out voltage of regulator 1 is measured between VP and VREG 1. 3. The drop-out voltage of the power switch is measured between VP and Vsw. drop-out voltage peak current Isw = 0.5 A; note 3 t 10 ms - 1.4 - - total quiescent current operating virtual junction temperature 0.5 mA IREG1 300 mA 0.5 mA IREG2 30 mA; VP = 14.4 V IREG1 = 0.3 A; note 2 note 1 t 10 minutes during 50 ms; tr 2.5 ms standby mode 9.75 2.4 - - - - 14.4 14.4 - - 400 - PARAMETER CONDITIONS MIN. TYP.
TDA3604
MAX.
UNIT
25 25 30 50 500 150
V V V V µA °C
Voltage regulators output voltage regulator 1 output voltage regulator 2 drop-out voltage 8.65 4.8 - 9.0 5.0 - 9.35 5.2 0.5 V V V
1.4 -
V A
1995 Oct 04
3
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