A6250X16W EMMICRO [EM Microelectronic - MARIN SA], A6250X16W Datasheet - Page 2

• Manufacturer Part Number: A6250X16W
• Description: High Efficiency Linear Power Supply with Accurate Power Surveillance and Software Monitoring
• Manufacturer: EMMICRO [EM Microelectronic - MARIN SA]

2
Absolute Maximum Ratings
Stresses above these listed max i mum rat ings may cause
per ma nent dam age to the de vice. Ex po sure be yond
spec i fied op er at ing con di tions may af fect de vice re li abil ity
or cause mal func tion.
Decoupling Methods
The in put ca pac i tor is nec es sary to com pen sate the line
in flu ences. A re sis tor of approx. 1
with the in put ca pac i tor may be used to damp the os cil la -
tion of the in put ca pac i tor and in put in duc tivi ty. The ESR
value of the ca pac i tor plays a ma jor role re gard ing the ef fi -
ciency of the de coup ling. It is rec om mended also to con -
nect a ce ramic ca pac i tor (100 nF) di rectly at the IC’s pins.
In gen eral the user must as sure that pulses on the in put
line have slew rates lower than 1 V/µs. On the out put side,
the ca pac i tor is nec es sary for the sta bil ity of the reg u la tion
cir cuit. The sta bil ity is guar an teed for val ues of 22 µF or
big ger. It is spe cially im por tant to choose a ca pac i tor with
a low ESR value. Tantal ca pac i tors are rec om mended.
See the notes re lated to Ta ble 2. Spe cial care must be
taken in dis turbed en vi ron ments (au to mo tive, prox im ity of
mo tors and re lays, etc.).
Handling Procedures
This de vice has built-in pro tec tion against high static volt -
ages or elec tric fields; how ever, anti-static pre cau tions
must be taken as for any other CMOS com po nent. Un less
oth er wise spec i fied, proper op er a tion can only oc cur
when all ter mi nal volt ages are kept within the sup ply volt -
age range. Un used in puts must al ways be tied to a de -
fined logic volt age level.
Parameter
Continuous voltage at INPUT to
V
Transients on INPUT for
t< 100 ms and duty cycle 1%
Reverse supply voltage on INPUT V
Max. voltage at any signal pin
Min. voltage at any signal pin
Storage temperature
Operating junction temperature
Electrostatic discharge max. To
MIL-STD-883C method 3015
Max. soldering conditions
Max. Output current
SS
T
Symbol Conditions
V
V
V
V
T
V
T
I
OUTPUTmax
J
STO
Smax
INPUT
TRANS
REV
MAX
MIN
Smax
con nected in se ries
OUTPUT+0.3V
-65 to +150°C
-0.3 to +45 V
max. 150 °C
250°C x 10 s
up to +60 V
V
300 mA
1000V
SS
-20 V
-0.3V
Ta ble 1
Operating Conditions
1)
2)
3)
4)
5)
6)
7)
Parameter
Operating junction
temperature
INPUT voltage
OUTPUT voltage
RES & EN guaranteed
OUTPUT current
Comparator input voltage
RC-oscillator programming
Thermal resistance from
junction to ambient
The OUTPUT cur rent will not ap ply for all pos si ble
The max i mum op er at ing tem per a ture is con firmed by
sam pling at ini tial de vice qual i fi ca tion. In pro duc tion, all
de vices are tested at +125°C.
Full op er a tion guar an teed. To achieve the load reg u la tion
spec i fied in Ta ble 3 a 22 µF ca pac i tor or greater is re quired
on the INPUT, see Fig. 8. The 22 µF must have an ef fec tive
re sis tance
A 10 µF load ca pac i tor and a 100 nF de coup ling ca pac i tor
are re quired on the reg u la tor OUTPUT for sta bil ity. The 10 µF
must have an ef fec tive se ries re sis tance of
res o nant fre quency above 500 kHz.
RES must be pulled up ex ter nally to V
un used. (Note: RES and EN are used as in puts by EM test.)
com bi na tions of in put volt age and out put cur rent.
Com bi na tions that would re quire the A6250 to work above
the max i mum junc tion tem per a ture (+125 °C) must be
avoided.
Re sis tor val ues close to 1000 k
ap pli ca tions work ing at 125 °C.
The ther mal re sis tance spec i fied as sumes the pack age is
sol dered to a PCB. The termal re sis tance’s value de pends on
the PCB’s struc ture. A typical value of 51 °C/W has been
ob tained with a dual layer board, with the slug soldered to
the heat-sink area of the PCB (see Fig. 22).
- PSOP2-16
1)
5
2)
5)
2) 3)
and a res o nant fre quency above 500 kHz.
7)
4)
6)
Symbol Min. Max. Units
T
VI
V
V
I
V
R
R
OUTPUT
are not rec om mended for
J
OUTPUT
OUTPUT
IN
th(j-a)
NPUT
OUTPUT
-40
2.3
1.2
1.2
10
30
0
A6250
even if it is
5
V
+125
1000
OUTPUT
250
and a
40
90
Ta ble 2
°C/W
mA
k
°C
V
V
V
V