TDA3681J/N2S,112 NXP Semiconductors, TDA3681J/N2S,112 Datasheet - Page 2

• Manufacturer Part Number: TDA3681J/N2S,112
• Description: IC REG MULTIPLE VOLTAGE SOT243
• Manufacturer: NXP Semiconductors

Specifications of TDA3681J/N2S,112

• Package / Case: *
• Applications: Ignition Buffer, Regulator
• Current - Supply: 110µA
• Voltage - Supply: 9.5 V ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Number Of Outputs: 4
• Polarity: Positive
• Output Voltage: 8.5 V, 5 V, 3.3 V
• Output Type: Fixed
• Dropout Voltage (max): 0.7 V at 550 mA or 0.6 V at 100 mA
• Line Regulation: 75 mV
• Load Regulation: 150 mV
• Maximum Power Dissipation: 62 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935289137112

Philips Semiconductors
FEATURES
General
Protections
ORDERING INFORMATION
2004 Mar 31
TDA3681J
TDA3681JR
TDA3681TH
Extremely low noise behaviour and good stability with
very small output capacitors
Second supply pin for regulators 3 and 4 to reduce
power dissipation (e.g. via a DC-to-DC converter)
Three V
and 4) and a power switch
Regulator 2, reset and ignition buffer operational during
load dump and thermal shutdown
Combined control pin for switching regulators 1 and 3
Separate control pins for switching regulator 4 and the
power switch
Supply voltage range from 18 to +50 V
Low quiescent current in standby mode (when
regulators 1, 3 and 4 and power switch are switched off
and ignition input is low)
Hold output (open-collector output stage) for low V
(regulators 1, 3 and 4 and power switch off)
Hold output when one of regulators 1 and 3 and/or 4 is
out of regulation
Hold output for foldback mode of power switch and
regulators 1, 3 and 4
Hold output for load dump and temperature protection
Reset (push-pull output stage) for regulator 2
Adjustable reset delay time
High supply voltage ripple rejection
Backup capacitor for regulator 2
One independent ignition buffer (active HIGH).
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)
NUMBER
Multiple voltage regulator with switch and
ignition buffer
TYPE
P
-state controlled regulators (regulators 1, 3
HSOP20
DBS17P
DBS17P
NAME
plastic DIL-bent-SIL power package; 17 leads (lead length 7.7 mm)
plastic DIL-bent-SIL (special bent) power package; 17 leads
(lead length 12 mm)
plastic, heatsink small outline package; 20 leads; low stand-off height
P
2
DESCRIPTION
GENERAL DESCRIPTION
The TDA3681 is a multiple output voltage regulator with a
power switch and an ignition buffer. It is intended for use in
car radios with or without a microcontroller. The TDA3681
contains the following:
PACKAGE
ESD protection on all pins
Thermal protections
Load dump protection
Foldback current limit protection for regulators 1, 2, 3
and 4
Delayed second current limit protection for the power
switch (at short-circuit)
The regulator outputs and the power switch are
DC short-circuit safe to ground and supply (V
Four fixed voltage regulators with a foldback current
protection (regulators 1, 2, 3 and 4). Regulator 2, which
is intended to supply a microcontroller, also operates
during load dump and thermal shutdown
Regulators 3 and 4 have a second supply pin that can
be connected to a lower supply voltage (>6.5 V) to
reduce the power dissipation
A power switch with protection, operated by a control
input
Reset and hold outputs that can be used to interface
with the microcontroller; the reset signal can be used to
call up the microcontroller
Both supply pins can withstand load dump pulses and
negative supply voltages
Regulator 2, which is in regulation at a backup voltage
above 6.5 V
A provision for the 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
An ignition input Schmitt trigger with push-pull output
stage.
Product specification
TDA3681
SOT243-3
SOT475-1
SOT418-3
VERSION
P
).