Datasheet

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SLUS168D – APRIL 1999 – REVISED AUGUST 2002
2
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description (continued)
The UCC3808 family offers a variety of package temperature range options, and choice of undervoltage lockout
levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds
are shown in the table below.
Table 1.
Part Number Turn on Threshold Turn off Threshold
UCCx808–1 12.5 V 8.3 V
UCCx808–2 4.3 V 4.1 V
ORDERING INFORMATION
TT
Packaged Devices
T
A
= T
J
UVLO Option SOIC (D) PDIP (N) TSSOP (PW)
40°Cto85°C
12.5 V/8.3 V UCC2808D–1 UCC2808N–1 UCC2808PW–1
–40°C to 85°C
4.3 V/4.1 V UCC2808D–2 UCC2808N–2 UCC2808PW–2
0°Cto70°C
12.5 V/8.3 V UCC3808D–1 UCC3808N–1 UCC3808PW–1
0°C to 70°C
4.3 V/4.1 V UCC3808D–2 UCC3808N–2 UCC3808PW–2
†
D (SOIC–8) and PW (TSSOP–8) packages are available taped and reeled. Add TR suffix to device type (e.g.
UCC3808DTR–1) to order quantities of 2500 devices per reel for SOIC-8 and 2000 devices per reel for TSSOP-8.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†
Supply voltage (IDD ≤ 10 mA) 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUTA/OUTB source current (peak) –0.5 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUTA/OUTB sink current (peak) 1.0 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog inputs (FB, CS) –0.3 V to VDD+0.3 V, not to exceed 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation at T
A
= 25°C (N Package) 1 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation at T
A
= 25°C (D Package) 650 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation at T
A
= 25°C (PW Package) 400 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature,
Tstg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction temperature, T
J
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (soldering, 10 sec.) 300°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
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.
‡
Currents are positive into, negative out of the specified terminal. Consult Packaging Section of the Power Supply Control Data Book (TI Literature
Number SLUD003) for thermal limitations and considerations of packages.