Datasheet

TLE 4278 G
Data Sheet 7 Rev. 1.4, 2007-02-19
Table 4 Electrical Characteristics
V
I
= 13.5 V; -40 °C ≤ T
j
≤ 125 °C (unless otherwise specified)
Parameter Symbol Limit Values Unit Test Condition
Min. Typ. Max.
Output voltage
V
Q
4.90 5.00 5.10 V 0 mA ≤ I
Q
≤ 150 mA;
6 V ≤
V
I
≤ 28 V
Output voltage
V
Q
4.8 5.0 5.2 V 1 mA ≤ I
Q
≤ 50 mA;
28 V ≤
V
I
≤ 45 V
Output current limiting
I
Q
200 400 – mA V
Q
= 4.8 V
Current consumption
I
q
= I
I
- I
Q
I
q,o
– 180 200 µA T
j
= 25 °C;
I
Q
= 0 mA
Current consumption
I
q
= I
I
- I
Q
I
q,o
– 210 230 µA I
Q
= 0 mA;
T
j
= 85 °C
Current consumption
I
q
= I
I
- I
Q
I
q,150
–512mAI
Q
= 150 mA
Drop voltage
V
DR
= V
I
- V
Q
V
dr
–0.250.5VI
Q
= 150 mA
1)
Load regulation ∆V
Q.lo
-30 -5 – mV I
Q
= 5 to 150 mA;
V
I
= 6 V
Line regulation ∆
V
Q,li
–520mVV
I
= 6 to 28 V
I
Q
= 5 mA
Reset Generator
Reset threshold
V
Q,rt
4.5 4.65 4.8 V RADJ connected to GND
Reset headroom ∆
V
Q,rt
=
(
V
Q,nom
-
V
Q,rt
)
180 350 – mV
I
Q
= 10 mA
Reset adjust threshold
V
RADJ,th
1.28 1.35 1.45 V V
Q
≥ 3.5 V
Reset low voltage
V
RO,l
–0.200.40VR
ext
= 10 kΩ to V
Q
V
Q
≥ 1 V
Reset high voltage
V
RO,h
4.5––V–
Reset pull-up
R
RO
20 30 45 kΩ Internal connected to V
Q
Charging current I
D,c
258µA V
D
= 1.0 V