Datasheet

UCC28070A
SLUSAW0 –MARCH 2012 www.ti.com
DESCRIPTION (CONT.)
Like UCC28070, UCC28070A also features multiple innovations including current synthesis and quantized
voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response.
Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the
potential performance enhancements. All protection features in UCC28070 such as output over-voltage
detection, programmable peak-current limit, under-voltage lockout and open-loop protection are available in
UCC28070A as well.
ORDERING INFORMATION
PART NUMBER PACKAGE PACKING
UCC28070APW Plastic, 20-Pin TSSOP (PW) 70-Pc. Tube
UCC28070APWR Plastic, 20-Pin TSSOP (PW) 2000-Pc. Tape and Reel
ABSOLUTE MAXIMUM RATINGS
(1) (2) (3) (4)
over operating free-air temperature range (unless otherwise noted)
PARAMETER LIMIT UNIT
Supply voltage: VCC 22 V
Supply current: I
VCC
20 mA
Voltage: GDA, GDB −0.5 to VCC+0.3 V
Gate drive current – continuous: GDA, GDB +/− 0.25
A
Gate drive current – pulsed: GDA, GDB +/− 0.75
Voltage: DMAX, RDM, RT, CDR, VINAC, VSENSE, SS, VAO, IMO, CSA, CSB,
−0.5 to +7 V
CAOA, CAOB, PKLMT, VREF
Current: RT, DMAX, RDM, RSYNTH −0.5
mA
Current: VREF, VAO, CAOA, CAOB, IMO 10
Operating junction temperature, T
J
−40 to +125
Storage temperature, T
STG
−65 to +150 °C
Lead temperature (10 seconds) 260
(1) These are stress limits. Stress beyond these limits may cause permanent damage to the device. Functional operation of the device at
these or any conditions beyond those indicated under RECOMMENDED OPERATING CONDITIONS is not implied. Exposure to
absolute maximum rated conditions for extended periods of time may affect device reliability.
(2) All voltages are with respect to GND.
(3) All currents are positive into the terminal, negative out of the terminal.
(4) In normal use, terminals GDA and GDB are connected to an external gate driver and are internally limited in output current.
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Product Folder Link(s): UCC28070A