參數(shù)資料
型號(hào)： TDA3609JR
廠商： NXP SEMICONDUCTORS
元件分類： 模擬信號(hào)調(diào)理
英文描述： Multiple voltage regulator with switch and ignition buffers
中文描述： SPECIALTY ANALOG CIRCUIT, PZFM17
封裝： POWER, PLASTIC, DIL-BENT-SIL, 17 PIN
文件頁(yè)數(shù)： 13/20頁(yè)
文件大?。?/td> 136K
代理商： TDA3609JR
1997 Aug 15
13
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
Notes
1.
2.
Minimum operating voltage, only if V
P
has exceeded 6.5 V.
The quiescent current is measured in the standby mode. So, the enable inputs of regulator 1, 3 and the power switch
are grounded and R
L(REG2)
=
∞
(see Fig.7).
The voltage of the regulator sinks as a result of a V
P
drop.
The rise and fall time is measured with a 10 k
pull-up resistor and a 50 pF load capacitor.
3.
4.
5.
The delay time depends on the value of the capacitor:
6.
7.
8.
9.
10. The drop-out voltage measured between BU and REG2.
11. The drop-out voltage of the power switch is measured between V
P
and SW.
12. The maximum output current of the switch is limited to 1.8 A when the supply voltage exceeds 18 V.
A test-mode is built-in. The delay time of the switch will be disabled when a voltage of V
P
+ 1 V is applied to the
switch-enable input.
13. At short-circuit, I
sc
of the power switch is held constant to a lower value than the continuous current after a delay of
at least 10 ms. A test-mode is built-in. The delay time of the switch will be disabled when a voltage of V
P
+ 1 V is
applied to the switch-enable input.
14. V
IGN1out
= LOW for V
IGN1out
> 1.2 V or V
EN1
> 1.3 V or V
EN3
> 1.3 V or V
ENSW
> 1.3 V.
The drop-out voltage of regulators 1, 2 and 3 is measured between V
P
and REGn.
At current limit, I
REGmn
is held constant (see Fig.5 for behaviour of I
REGmn
).
The foldback current protection limits the dissipated power at short-circuit (see Fig.5).
The peak current of 300 mA can only be applied for short periods (t < 100 ms).
Ignition 2 buffer
V
OL
V
OH
I
OL
I
OH
I
LO
LOW-level output voltage
HIGH-level output voltage
LOW-level output current
HIGH-level output current
output leakage current
(source)
LOW-to-HIGH
propagation time
HIGH-to-LOW
propagation time
I
IGN2out
= 0 mA
I
IGN2out
= 0 mA
V
IGN2out
≤
0.8 V
V
IGN2out
≥
4.5 V
V
IGN1out
= 5 V; V
IGN1in
= 0 V
0
4.5
0.45
0.45
0.2
5.0
0.8
2.0
0.8
5.25
1.0
V
V
mA
mA
μ
A
t
PLH
V
IGN2in
rising from
1.7 V to 2.5 V
V
IGN2in
falling from
2.5 V to 1.7 V
500
μ
s
t
PHL
500
μ
s
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
t
d
ch
I
V
C(th)
×
C
750
10
3
×
×
ms
(
)
=
=
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