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UCC2800/2801/2802/2803/2804/2805-EP

LOW-POWER BICMOS CURRENT-MODE PWM



SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D Controlled Baseline

− One Assembly

− One Test Site

− One Fabrication Site

D Extended Temperature Performance of

−55°C to 125°C

D Enhanced Diminishing Manufacturing

Sources (DMS) Support

D Enhanced Product Change Notification

D Qualification Pedigree

†

D ESD Protection Exceeds 200 V Using

Machine Model (C = 200 pF, R = 0)

D 100 μA Typical Starting Supply Current

D 500 μA Typical Operating Supply Current

†

Component qualification in accordance with JEDEC and industry

standards to ensure reliable operation over an extended

temperature range. This includes, but is not limited to, Highly

Accelerated Stress Test (HAST) or biased 85/85, temperature

cycle, autoclave or unbiased HAST, electromigration, bond

intermetallic life, and mold compound life. Such qualification

testing should not be viewed as justifying use of this component

beyond specified performance and environmental limits.

D Operation to 1 MHz

D Internal Soft Start

D Internal Fault Soft Start

D Internal Leading-Edge Blanking of the

Current Sense Signal

D 1 Amp Totem-Pole Output

D 70 ns Typical Response from

Current-Sense to Gate Drive Output

D 1.5% Tolerance Voltage Reference

D Same Pinout as UC3842 and UC3842A

description

The UCC2800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive

components required for off-line and dc-to-dc fixed frequency current-mode switching power supplies with

minimal parts count.

These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features

of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference

parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the higher reference

and the higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line

power supplies.

PART NUMBER MAXIMUM DUTY CYCLE REFERENCE VOLTAGE TURN-ON THRESHOLD TURN-OFF THRESHOLD

UCC2800 100% 5 V 7.2 V 6.9 V

UCC2801 50% 5 V 9.4 V 7.4 V

UCC2802 100% 5 V 12.5 V 8.3 V

UCC2803 100% 4 V 4.1 V 3.6 V

UCC2804 50% 5 V 12.5 V 8.3 V

UCC2805 50% 4 V 4.1 V 3.6 V

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.



Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

COMP

REF

OUT

GND

D PACKAGE

(TOP VIEW)

Summary of content (18 pages)

PAGE 1
UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 D Controlled Baseline D D D D D D D † D D D D − One Assembly − One Test Site − One Fabrication Site Extended Temperature Performance of −55°C to 125°C Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product Change Notification Qualification Pedigree† ESD Protection Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) 100 μA Typical Starting Supply Current 500 μ
PAGE 2
UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 ORDERING INFORMATION† TA 40°C to 125°C −40°C −55°C to 125°C ORDERABLE PART NUMBER PACKAGE‡ SOP − D SOP − D Tape and reel Tape p and reel TOP-SIDE MARKING UCC2800QDREP 2800EP UCC2801QDREP 2801EP UCC2802QDREP 2802EP UCC2803QDREP 2803EP UCC2804QDREP 2804EP UCC2805QDREP 2805EP UCC2800MDREP 2800EP UCC2801MDREP 2801EP UCC2803MDREP 2803EP † For the most current
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 Ordering Information UCC2 80 0 Q or M D R EP ENHANCED PLASTIC INDICATOR TAPE and REEL INDICATOR PACKAGE D = Plastic SOIC TEMPERATURE RANGE INDICATOR PRODUCT OPTION 0 through 5 UCC280XXD−EP Operating Life Derating Chart Years estimated life 1000 100 Wirebond Voiding Fail Mode 10 1 100 110 120 130 140 150 160 Continuous Tj (5C) NOTES: A.
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†‡ VCC voltage w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V VCC current w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 electrical characteristics, TA = −40_C to 125_C for Q temp and TA= −55_C to 125_C for M temp, VCC = 10 V (see Note 1), RT = 100 kΩ from REF to RC, CT = 330 pF from RC to GND, 0.1 F capacitor from VCC to GND, 0.
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 electrical characteristics, TA = −40_C to 125_C for Q temp and TA= −55_C to 125_C for M temp, VCC = 10 V (see Note 1), RT = 100 kΩ from REF to RC, CT = 330 pF from RC to GND, 0.1 F capacitor from VCC to GND, 0.
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 detailed terminal descriptions COMP COMP is the output of the error amplifier and the input of the PWM comparator. Unlike other devices, the error amplifier in the UCC2800 family is a true, low output-impedance, 2 MHz operational amplifier. As such, the COMP terminal can both source and sink current.
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 detailed descriptions (continued) RC RC is the oscillator timing pin. For fixed frequency operation, set timing capacitor charging current by connecting a resistor from REF to RC. Set frequency by connecting timing capacitor from RC to GND. For the best perfomance, keep the timing capacitor lead to GND as short and direct as possible.
PAGE 9
UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 PARAMETER MEASUREMENT INFORMATION Error Amplifier Gain/Phase Response Oscillator The UCC3800/1/2/3/4/5 oscillator generates a sawtooth waveform on RC. The rise time is set by the time constant of RT and CT. The fall time is set by CT and an internal transistor on-resistance of approximately 125.
PAGE 10
UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 PARAMETER MEASUREMENT INFORMATION UCC1803/05 Oscillator Frequency vs RT and CT UCC1800/02/03 Maximum Duty Cycle vs Oscillator Frequency Figure 5 Figure 6 UCC1801/04/05 Maximum Duty Cycle vs Oscillator Frequency UCC1800 ICC vs Oscillator Frequency Figure 8 Figure 7 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 PARAMETER MEASUREMENT INFORMATION UCC1805 ICC vs Oscillator Frequency Dead Time vs CT, RT = 100 kW Figure 9 Figure 10 COMP to CS Offset vs Temperature, CS = 0 V Figure 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11
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UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 MECHANICAL DATA D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 8 PINS SHOWN 0.020 (0,51) 0.014 (0,35) 0.050 (1,27) 8 0.010 (0,25) 5 0.008 (0,20) NOM 0.244 (6,20) 0.228 (5,80) 0.157 (4,00) 0.150 (3,81) Gage Plane 1 4 0.010 (0,25) 0°− 8° A 0.044 (1,12) 0.016 (0,40) Seating Plane 0.010 (0,25) 0.004 (0,10) 0.069 (1,75) MAX PINS ** 0.004 (0,10) 8 14 16 A MAX 0.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2010 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant UCC2800MDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 4.0 12.0 Q1 UCC2800QDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 4.0 12.0 Q1 UCC2801MDREP SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 4.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2010 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) UCC2800MDREP SOIC D 8 2500 367.0 367.0 35.0 UCC2800QDREP SOIC D 8 2500 367.0 367.0 35.0 UCC2801MDREP SOIC D 8 2500 367.0 367.0 35.0 UCC2801QDREP SOIC D 8 2500 367.0 367.0 35.0 UCC2802QDREP SOIC D 8 2500 367.0 367.0 35.0 UCC2803MDREP SOIC D 8 2500 367.0 367.0 35.
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