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Part: TDA3605Q/N1
Category:
Analog & Mixed-Signal Processing
Description: Multiple Voltage Regulator With Switch
Company: Philips Semiconductors
Datasheet: Download TDA3605Q/N1 datasheet File size : 417 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
DATA SHEET
TDA3605Q Multiple voltage regulator with switch
Preliminary specification Supersedes data of 1995 Nov 20 File under Integrated Circuits, IC01 1997 Jul 09
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch
FEATURES · Two VP-state controlled regulators (regulator 1 and regulator 3) and a power switch · Regulator 2, reset and ignition buffer operates during load dump and thermal shutdown · Separate control pins for switching regulator 1, regulator 3 and the power switch · Supply voltage range of -18 to +50 V (operating from 11 V) · Low reverse current of regulator 2 · Low quiescent current (when regulator 1, regulator 3, and power switch are switched off) · Hold output (only valid when regulator 1 is switched on) · Reset and hold outputs (open collector outputs) · Adjustable reset delay time · High ripple rejection · Back-up capacitor for regulator 2. 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 short-circuited) · ESD protected on all pins · Thermal protection · Local thermal protection for power switch · Load dump protection · Foldback current limit protection for regulators 1, 2 and 3 · Delayed second current limit protection for the power switch (at short-circuit) · The regulator outputs and the power switch are DC short-circuited safe to ground and VP. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA3605Q DBS13P DESCRIPTION GENERAL DESCRIPTION
TDA3605Q
The TDA3605Q is a multiple output voltage regulator with a power switch, intended for use in car radios with or without a microcontroller. It contains: 1. Two fixed voltage regulators with a foldback current protection (regulator 1 and regulator 3) and one fixed voltage regulator (regulator 2), intended to supply a microcontroller, that also operates during load dump and thermal shutdown. 2. A power switch with protections, operated by an enable input. 3. Reset and hold outputs can be used to interface by the microcontroller. The reset signal can be used to call up the microcontroller and the hold output indicates regulator 1 voltage available and within range. 4. A supply pin which can withstand load dump pulses and negative supply voltage. 5. Regulator 2 will be switched on at a supply voltage >6.5 V and off at a voltage of regulator 2 <1.9 V. 6. Also there is a provision for use of a reserve supply capacitor that will hold enough energy for regulator 2 (5 V continuous) to allow a microcontroller to prepare for loss of voltage.
VERSION SOT141-6
plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm)
1997 Jul 09
2
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch
QUICK REFERENCE DATA SYMBOL Supply VP supply voltage operating reverse battery regulator 2 on jump start load dump protection Iq(tot) Tj VREG1 VREG2 VREG3 Power switch Vsw(d) IswM drop-out voltage peak current Isw = 1 A Isw = 1.8 A - - 3 junction temperature 0.5 mA IREG1 600 mA 0.5 mA IREG3 400 mA t 10 minutes during 50 ms; tr 2.5 ms 11 -18 2.4 - - - - PARAMETER CONDITIONS MIN.
TDA3605Q
TYP.
MAX.
UNIT
14.4 - 14.4 - - 500 -
18 - 18 30 50 600 150
V V V V V µA °C
total quiescent supply current standby mode
Voltage regulators output voltage regulator 1 output voltage regulator 2 output voltage regulator 3 9.5 4.75 10.0 5.0 5.0 10.5 5.25 5.25 V V V 0.5 mA IREG2 300 mA; VP = 14.4 V 4.75
0.45 1 -
0.7 1.8 -
V V A
1997 Jul 09
3
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