Datasheet

L7985 Electrical characteristics
Doc ID 022446 Rev 3 7/43
Error amplifier
V
CH
High level output voltage V
FB
<0.6 V 3
V
V
CL
Low level output voltage V
FB
>0.6 V 0.1
I
O SOURCE
Source COMP pin V
FB
=0.5 V, V
COMP
=1 V 19 mA
I
O SINK
Sink COMP pin V
FB
=0.7 V, V
COMP
=1 V 30 mA
G
V
Open-loop voltage gain
(2)
100 dB
Synchronization function
V
S_IN,HI
High input voltage 2 3.3
V
V
S_IN,LO
Low input voltage 1
t
S_IN_PW
Input pulse width
V
S_IN,HI
=3 V,
V
S_IN,LO
=0 V
100
ns
V
S_IN,HI
=2 V,
V
S_IN,LO
=1 V
300
I
SYNCH,LO
Slave sink current V
SYNCH
=2.9 V 0.7 1 mA
V
S_OUT,HI
Master output amplitude I
SOURCE
=4.5 mA 2 V
t
S_OUT_PW
Output pulse width SYNCH floating 110 ns
Protection
T
SHDN
Thermal shutdown 150
°C
Hystereris 30
1. Specifications referred to TJ from -40 to +125 °C. Specifications in the -40 to +125 °C temperature range
are assured by design, characterization and statistical correlation.
2. Guaranteed by design.
Table 4. Electrical characteristics (continued)
Symbol Parameter Test conditions
Values
Unit
Min. Typ. Max.