Philips Semiconductors
Multiple voltage regulator with switch and
ignition buffer
Product specification
TDA3681
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supplies
VP1
supply voltage 1
operating
9.5 14.4 18
V
reverse polarity
non-operating
−
−
18
V
regulator 2 on
jump start
load dump protection
VP2
supply voltage 2
operating
t ≤ 10 minutes
t ≤ 50 ms; tr ≥ 2.5 ms
4
14.4 50
V
−
−
30
V
−
−
50
V
6.5 14.4 18
V
Iq(tot)
Tj
reverse polarity
regulator 2 on
jump start
load dump protection
total quiescent supply current
junction temperature
non-operating
t ≤ 10 minutes
t ≤ 50 ms; tr ≥ 2.5 ms
standby mode
−
−
18
V
0
−
50
V
−
−
30
V
−
−
50
V
−
110 150 µA
−
−
150 °C
Voltage regulators
Vo(REG1) output voltage of regulator 1 1 mA ≤ IREG1 ≤ 600 mA; VP = 14.4 V 8.0
8.5
Vo(REG2) output voltage of regulator 2 1 mA ≤ IREG2 ≤ 300 mA; VP = 14.4 V 4.75 5.0
Vo(REG3) output voltage of regulator 3 1 mA ≤ IREG3 ≤ 1400 mA; VP = 14.4 V 4.75 5.0
Vo(REG4) output voltage of regulator 4 1 mA ≤ IREG4 ≤ 1 A; VP = 14.4 V
3.14 3.3
9.0 V
5.25 V
5.25 V
3.46 V
Power switch
Vdrop(SW) drop-out voltage
IM(SW)
peak current
ISW = 1 A; VP1 = 13.5 V
ISW = 1.8 A; VP1 = 13.5 V
−
0.45 0.65 V
−
1.0 1.8 V
3
−
−
A
2004 Mar 31
3