UCC2808A, UCC2808A-1Q1, UCC2808A-2EP Selling Leads, Datasheet
MFG:1583 Package Cooled:SOP8 D/C:N/A
UCC2808A, UCC2808A-1Q1, UCC2808A-2EP Datasheet download
Part Number: UCC2808A
MFG: 1583
Package Cooled: SOP8
D/C: N/A
UCC2808A, UCC2808A-1Q1, UCC2808A-2EP
- Table of contents:
Info of UCC2808A
Info of UCC2808A-1Q1
Info of UCC2808A-2EP
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About UCC2808A-1
PDF/DataSheet Download
Datasheet: UCC2808A-1
File Size: 176128 KB
Manufacturer: TI
Download : Click here to Download
About UCC2808A-1Q1
PDF/DataSheet Download
Datasheet: UCC2808A-1Q1
File Size: 251050 KB
Manufacturer: TI [Texas Instruments]
Download : Click here to Download
About UCC1570
PDF/DataSheet Download
Datasheet: UCC1570
File Size: 348806 KB
Manufacturer: TI [Texas Instruments]
Download : Click here to Download
UCC2808A Parameters
- Dual Output Drive Stages in Push-Pull Configuration
- Current Sense Discharge Transistor to Improve Dynamic Response
- 130-uA Typical Starting Current
- 1-mA Typical Run Current
- Operation to 1 MHz
- Internal Soft Start
- On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
- On Chip VDD Clamping
- Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
UCC2808A General Description
1 - Low-Power Current-Mode Push-Pull PWM
UCC2808A Features
- Dual Output Drive Stages in Push-Pull Configuration
- Current Sense Discharge Transistor to Improve Dynamic Response
- 130-uA Typical Starting Current
- 1-mA Typical Run Current
- Operation to 1 MHz
- Internal Soft Start
- On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
- On Chip VDD Clamping
- Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
UCC2808A Typical Application
UCC2808A DatasheetUCC2808A Datasheet UCC2808A Datasheet
UCC2808A-1Q1 General Description
The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.
The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.
The UCC2808A family offers a variety of package 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 ordering information table.
The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps minimize filter capacitor values and current sense delay.
The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.
The UCC2808A family offers a variety of package 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 ordering information table.
The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps minimize filter capacitor values and current sense delay.
UCC2808A-1Q1 Maximum Ratings
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 TA = 25°C (D package) . . . . . . . . . . . . . . . . . . . . . ...... . . . . . 650 mW
Power dissipation at TA = 25°C (PW package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mW
Storage temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . −65°C to150°C
Junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 150°C
Lead temperature (soldering, 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 300°C
UCC2808A-1Q1 Features
Qualification in Accordance With AEC-Q100†
Qualified for Automotive Applications
Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval
ESD Protection Exceeds 1500 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Dual Output Drive Stages in Push-Pull Configuration
Current Sense Discharge Transistor to Improve Dynamic Response
130-A Typical Starting Current
1-mA Typical Run Current
Operation to 1 MHz
Internal Soft Start
On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
On Chip VDD Clamping
Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
Qualified for Automotive Applications
Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval
ESD Protection Exceeds 1500 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Dual Output Drive Stages in Push-Pull Configuration
Current Sense Discharge Transistor to Improve Dynamic Response
130-A Typical Starting Current
1-mA Typical Run Current
Operation to 1 MHz
Internal Soft Start
On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
On Chip VDD Clamping
Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
UCC2808A-1Q1 Connection Diagram
UCC2808A-2EP General Description
The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.
The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.
The UCC2808A family offers a variety of package 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 ordering information table.
The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps minimize filter capacitor values and current sense delay.
UCC2808A-2EP Maximum Ratings
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 TA = 25°C (D package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW
Storage temperature, Tstg§ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to150°C
Junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 150°C
Lead temperature (soldering, 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
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 TA = 25°C (D package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW
Storage temperature, Tstg§ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to150°C
Junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 150°C
Lead temperature (soldering, 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
UCC2808A-2EP Features
Controlled Baseline
− One Assembly/Test Site, One Fabrication Site
Extended Temperature Performance of
−40°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree†
Dual Output Drive Stages in Push-Pull Configuration
Current Sense Discharge Transistor to Improve Dynamic Response
130-A Typical Starting Current
1-mA Typical Run Current
Operation to 1 MHz
Internal Soft Start
On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
On Chip VDD Clamping
Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
− One Assembly/Test Site, One Fabrication Site
Extended Temperature Performance of
−40°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree†
Dual Output Drive Stages in Push-Pull Configuration
Current Sense Discharge Transistor to Improve Dynamic Response
130-A Typical Starting Current
1-mA Typical Run Current
Operation to 1 MHz
Internal Soft Start
On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
On Chip VDD Clamping
Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current
UCC2808A-2EP Connection Diagram
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