Datasheet

UC28023
UC28025
SLUS557F -- MARCH 2003 -- REVISED AUGUST 2010
2
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These devices have limited built -in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted
(1)
UC28023 UC28025 RATING UNIT
Input voltage range, V
C,
V
CC
V
C,
V
CC
30 V
Output current, I
OUT(DC)
OUT OUTA, OUTB ±0.5 A
Peak output current, pulsed 0.5 ms I
OUT(pulsed)
OUT OUTA, OUTB ±2.0 A
Capacitive load, C
LOAD
200 pF
INV, NI, RAMP INV, NI, RAM --0.3Vto7V
Analog inputs
SS, ILIM/SD SS, ILIM/SD
V
REF
+0.3V,
-- 0 . 3 V
V
Output current, I
REF
VREF VREF 10
Output current, I
CLOCK
CLOCK CLOCK -- 5
Soft-start sink current, I
SINK_SS
SS SS 5
mA
Output current, I
OUT(EA)
EAOUT EAOUT 20
m
A
Oscillator charging current, I
OSC_CHG
RT RT -- 5
Power Dissipation at T
A
=25°C (all packages) 1 W
Operating junction temperature range, T
J
--55 to 150
Storage temperature, T
stg
--65 to 150
°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 s econds, T
sol
300
C
(1)
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is
not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All v oltages are with respect to
GND. All currents are positive into and negative out of the specified terminal.