UCC1895
UCC2895
UCC3895
CONNECTION DIAGRAMS
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (IDD < 10mA) . . . . . . . . . . . . . . . . . . . . . . . 17V
Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
REF current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
OUT Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Analog inputs
DIL-20,c SOIC-20, TSSOP-20 (TOP VIEW)
J or N Package, DW Package, PW Package
EAN
EAOUT
RAMP
REF
1
2
3
4
5
6
7
8
9
20 EAP
(EAP, EAN, EAOUT, RAMP,
19 SS/DISB
18 OUTA
17 OUTB
16 PGND
15 VDD
14 OUTC
13 OUTD
12 CS
SYNC, ADS, CS, SS/DISB) . . . . . . . . . . . –0.3V to REF+0.3V
Power Dissipation at TA=+25°C (N Package). . . . . . . . . . . . 1W
Power Dissipation at TA=+25°C (D Package) . . . . . . . . 650mW
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . –55°C to +125°C
Lead Temperature (soldering, 10 sec). . . . . . . . . . . . . . +300°C
GND
SYNC
CT
RT
TEMPERATURE & PACKAGE SELECTION
TABLE
DELAB
DELCD 10
11 ADS
TEMPERATURE
RANGE
PACKAGE
SUFFIX
UCC1895
UCC2895
UCC3895
–55°C to +125°C
–40°C to +85°C
0°C to +70°C
J, L
DW, N, PW, Q
DW, N, PW, Q
PLCC-20, CLCC-20 (TOP VIEW)
Q Package, L Package
EAN
EAOUT
RAMP
ORDERING INFORMATION
EAP
SS/DISB
UCC 895
3
2
1
20 19
18
REF
GND
SYNC
CT
4
5
6
7
8
OUTA
17
16
15
14
OUTB
PGND
VDD
PACKAGE SUFFIX
TEMPERATURE RANGE
RT
OUTC
9
10 11 12 13
DELAB
DELCD
OUTD
CS
ADS
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, VDD=12V, RT=82kW, CT=220pF, RDELAB=10kW,
RDELCD=10kW, CREF=0.1mF, CVDD=1.0mF, no load at outputs. TA = TJ. TA = 0°C to 70°C for UCC3895x, –40°C to +85°C for
UCC2895x, and –55°C to +125°C for UCC1895x.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNITS
UVLO Section
Start Threshold
Stop Threshold
Hysteresis
10.2
8.2
11
9
11.8
9.8
V
V
V
1.0
2.0
3.0
Supply Current
Start-up Current
IDD Active
VDD = 8V
150
5
250
6
mA
mA
V
VDD Clamp Voltage
IDD = 10mA
16.5
17.5
18.5
2
TI [ TEXAS INSTRUMENTS ]
