UCC2808-1, UCC2808-2, UCC3808-1, UCC3808-2

LOW POWER CURRENT MODE PUSH-PULL PWM

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

TA = TJ

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.

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

650 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

400 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–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.