UCC2800-EP

Manufacturer Part NumberUCC2800-EP
ManufacturerTexas Instruments
UCC2800-EP datasheet
 


Specifications of UCC2800-EP

Control MethodCurrentDuty Cycle(max)(%)100
Frequency(max)(khz)1000Uvlo Thresholds On/off(v)7.2/6.9
Pin/package8SOICVin(min)(v)6.9
Regulated Outputs(#)1Operating Temperature Range(c)-40 to 125,-55 to 125
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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.
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
UCC2800
100%
UCC2801
50%
UCC2802
100%
UCC2803
100%
UCC2804
50%
UCC2805
50%
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.
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.
UCC2800/2801/2802/2803/2804/2805-EP
LOW-POWER BICMOS CURRENT-MODE PWM
SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010
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
COMP
FB
CS
RC
REFERENCE VOLTAGE
TURN-ON THRESHOLD
5 V
5 V
5 V
4 V
5 V
4 V
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D PACKAGE
(TOP VIEW)
REF
1
8
V
2
7
CC
OUT
3
6
GND
4
5
TURN-OFF THRESHOLD
7.2 V
6.9 V
9.4 V
7.4 V
12.5 V
8.3 V
4.1 V
3.6 V
12.5 V
8.3 V
4.1 V
3.6 V
Copyright © 2007, Texas Instruments Incorporated
1

UCC2800-EP Summary of contents

  • Page 1

    ... 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. ...

  • Page 2

    ... PACKAGE PART NUMBER UCC2800QDREP UCC2801QDREP UCC2802QDREP SOP − D SOP D Tape and reel Tape and reel UCC2803QDREP UCC2804QDREP UCC2805QDREP UCC2800MDREP SOP − D Tape and reel p UCC2801MDREP UCC2803MDREP • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 TOP-SIDE MARKING 2800EP 2801EP 2802EP 2803EP ...

  • Page 3

    ... NOTES: A. See datasheet for Absolute Maximum and Minimum Recommended Operating Conditions B. Silicon operating life design Goal 105°C junction temperature (does not include package interconnect life). C. Enhanced plastic product disclaimer applies. UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 ...

  • Page 4

    ... TEST CONDITIONS UCC2800/01/02/ UCC2803/ 25_C −40_C to 125_C and −55_C to 125_C UCC2800/01/02/04 UCC2803/ 25_C 125_C A • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 −65_C to 150_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 5

    ... TEST CONDITIONS UCC2800/01/02/04 See Note 2 See Note 2 UCC2803/05 See Note 7 COMP = 2.5 V UCC2800/01/02/04 COMP = 2 V UCC2803/ 2.7 V, COMP = 1 1.8 V, COMP = REF − 1.2 V See Note 7 UCC2800/02/03 UCC2801/04/05 COMP = 0 V See Note 3 COMP = 5 V, See Note All parts OUT I = 200 mA All parts ...

  • Page 6

    ... CC NOTES: 1. Adjust V above the start threshold before setting Oscillator frequency for the UCC2800, UCC2802, and UCC2803 is the output frequency. Oscillator frequency for the UCC2801, UCC2804, and UCC2805 is twice the output frequency. DV COMP ...

  • Page 7

    ... As such, the COMP terminal can both source and sink current. However, the error amplifier is internally current limited, so that one can command zero duty cycle by externally forcing COMP to GND. The UCC2800 family features built-in full cycle soft start. Soft start is implemented as a clamp on the maximum COMP voltage the input to the current sense comparators ...

  • Page 8

    ... 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. If possible, use separate ground traces for the timing capacitor and all other functions. The frequency of oscillation can be estimated with the following equations: UCC2800 1.5 R UCC2803 UCC2805 : F + 1.0 R where frequency is in Hz, resistance is in ohms, and capacitance is in farads ...

  • Page 9

    ... Larger timing capacitors increase the discharge time and reduce the maximum duty cycle and frequency. Figure 1 UCC1803/ REF CC LOAD Figure 3 UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 and C . The T T UCC1800/01/02/04 Oscillator Frequency = 0.5 mA • ...

  • 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 R and Figure 5 UCC1801/04/05 Maximum Duty Cycle vs Oscillator Frequency Figure 7 10 UCC1800/02/03 Maximum Duty Cycle • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 ...

  • Page 11

    ... PARAMETER MEASUREMENT INFORMATION UCC1805 Oscillator Frequency Figure 9 COMP to CS Offset Temperature Figure 11 POST OFFICE BOX 655303 UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 Dead Time 100 Figure 10 vs • DALLAS, TEXAS 75265 ...

  • Page 12

    ... UCC2800/2801/2802/2803/2804/2805-EP LOW-POWER BICMOS CURRENT-MODE PWM SGLS135F − SEPTEMBER 2002 − REVISED OCTOBER 2010 D (R-PDSO-G**) 8 PINS SHOWN 0.050 (1,27 0.069 (1,75) MAX NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15). ...

  • Page 13

    ... PACKAGING INFORMATION Orderable Device (1) Package Type Package Status UCC2800MDREP ACTIVE SOIC UCC2800QDREP ACTIVE SOIC UCC2801MDREP ACTIVE SOIC UCC2801MDREPG4 ACTIVE SOIC UCC2801QDREP ACTIVE SOIC UCC2802QDREP ACTIVE SOIC UCC2803MDREP ACTIVE SOIC UCC2803QDREP ACTIVE SOIC UCC2804QDREP ACTIVE SOIC UCC2805QDREP ACTIVE SOIC V62/03624-01XE ...

  • Page 14

    ... TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. OTHER QUALIFIED VERSIONS OF UCC2800-EP, UCC2801-EP, UCC2802-EP, UCC2803-EP, UCC2804-EP, UCC2805-EP : • ...

  • Page 15

    NOTE: Qualified Version Definitions: • Catalog - TI's standard catalog product Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects • Military - QML certified for Military and Defense Applications • PACKAGE OPTION ADDENDUM Addendum-Page 3 ...

  • Page 16

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing UCC2800MDREP SOIC UCC2800QDREP SOIC UCC2801MDREP SOIC UCC2801QDREP SOIC UCC2802QDREP SOIC UCC2803MDREP SOIC UCC2803QDREP SOIC UCC2804QDREP SOIC UCC2805QDREP SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter ...

  • Page 17

    ... Device Package Type UCC2800MDREP SOIC UCC2800QDREP SOIC UCC2801MDREP SOIC UCC2801QDREP SOIC UCC2802QDREP SOIC UCC2803MDREP SOIC UCC2803QDREP SOIC UCC2804QDREP SOIC UCC2805QDREP SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 D 8 2500 D 8 2500 ...

  • Page 18

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...