UC1854J UNITRODE, UC1854J Datasheet - Page 2

• Manufacturer Part Number: UC1854J
• Description: UNITRODE
• Manufacturer: UNITRODE

ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
GT Drv Current, Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A
GT Drv Current, 50% Duty Cycle. . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Input Voltage, V
Input Voltage, I
Input Voltage, PKLMT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input Current, R
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . +300
CONNECTION DIAGRAMS
ELECTRICAL
CHARACTERISTICS
DIL–16 & SOIC-16
(Top View)
J, N & DW Packages
OVERALL
VOLTAGE AMPLIFIER
Supply Current, Off
Supply Current, On
V
V
ENA Threshold, Rising
ENA Threshold Hysteresis
ENA Input Current
V
Voltage Amp Offset Voltage
V
Voltage Amp Gain
Voltage Amp Output Swing
Voltage Amp Short Circuit Current VA Out=0V
SS Current
Storage Temperature . . . . . . . . . . . . . . . . . . . . –65
CC
CC
RMS
SENSE
Turn-On Threshold
Turn-Off Threshold
Input Current
Bias Current
PARAMETER
SENSE
SENSE
SET
CC
, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
, Mult Out . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
AC
, V
, PKLMT, ENA . . . . . . . . . . . . . . . . . . . 10mA
RMS
Unless otherwise stated, V
V
VA Out, REF, GT Drv, –55
0
o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
RMS
C<T
=1.5V, I
A
<70
o
ENA=0V
ENA=0V
V
VA Out=5V
SS=2.5V
C for the UC3854, and T
AC
RMS
=100 A, I
=5V
TEST CONDITIONS
SENSE
o
CC
C<T
=18V, R
o
C to +150
=0V, CA Out=3.5V, VA Out=5V, V
A
<125
A
2
SET
o
=T
C for the UC1854, –40
o
o
=15k to ground, C
J
C
C
PLCC-20 & LCC-20
(Top View)
Q & L Packages
.
Note 1: All voltages with respect to Gnd (Pin 1).
Note 2: All currents are positive into the specified termi-
nal.
Note 3: ENA input is internally clamped to approximately
14V.
Note 4: Consult Unitrode Integrated Circuits databook for
information regarding thermal specifications and limita-
T
=1.5nF to ground, PKLMT=1V, ENA=7.5V,
o
C<T
–500
MIN
14.5
–5.0
–1.0
–36
–20
2.4
0.2
–8
70
9
SENSE
A
<85
=7.5V, no load on SS, CA Out,
o
0.5 to 5.8
C for the UC2854, and
TYP
PACKAGE PIN FUNCTION
2.55
0.25
–0.2
–.01
–25
100
–20
–14
1.5
N/C
Gnd
PKLMT
CA Out
I
N/C
Mult Out
I
VA Out
V
N/C
V
ENA
V
R
N/C
SS
C
V
GT Drv
10
16
10
SENSE
AC
FUNCTION
RMS
REF
SENSE
CC
SET
T
MAX
17.5
500
2.0
2.7
0.3
5.0
1.0
16
11
–5
–6
8
UC1854
UC2854
UC3854
UNITS
PIN
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
mA
mA
mV
mA
nA
dB
V
V
V
V
V
A
A
A