tda3681a NXP Semiconductors, tda3681a Datasheet - Page 14

• Manufacturer Part Number: tda3681a
• Description: Tda3681a Multiple Voltage Regulator With Switch And Ignition Buffer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. Minimum operating voltage, only if V
2. The total quiescent current is measured in the standby mode. Therefore, the enable inputs of regulators 1, 3, 4 and
3. The voltage of the regulator drops as a result of a V
4. The rise and fall times are measured with a 10 k pull-up resistor and a 50 pF load capacitor.
5. The delay time depends on the value of the reset delay capacitor:
6. The delay time depends on the value of the reset delay capacitor:
7. The drop-out voltage of regulators 1 and 2 is measured between pins V
8. At current limit, I
9. The foldback current protection limits the dissipated power at short-circuit (see Fig.6).
10. The drop-out voltage is measured between pins BU and REG2.
11. The drop-out voltage of the power switch is measured between pins V
12. The maximum output current of the power switch is limited to 1.8 A when the supply voltage exceeds 18 V.
13. At short-circuit, I
2003 Aug 29
Temperature protection
T
T
j(sd)
j(hold)
SYMBOL
Multiple voltage regulator with
switch and ignition buffer
the power switch are grounded and R
of V
regulators 3 and 4 is measured between pins V
of at least 10 ms (see Fig.7).
P2
drop.
junction temperature for
shutdown
junction temperature for
hold trigger
sc(SW)
m(REGn)
PARAMETER
of the power switch is held constant to a lower value than the continuous current after a delay
is held constant (see Fig.6).
P1
L(REG2)
has exceeded 6.5 V.
=
CONDITIONS
P2
(see Fig.8).
P1
and REGn.
drop for regulators 1 and 2. Regulators 3 and 4 drop as a result
14
t
t
d(RES)
d(SW)
150
150
P1
MIN.
P1
and SW.
=
=
and REGn. The drop-out voltage of
----- -
I
C
ch
----- -
I
C
ch
160
160
V
V
TYP.
C(th)
C(th)
=
=
C
C
170
170
Product specification
375
750
TDA3681A
MAX.
10
10
3
3
s
s
UNIT
C
C