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UCC3808AD-1

UCC3808AD-1

Obsolete
Texas Instruments

LOW POWER CURRENT MODE PUSH-PULL PWM WITH DISCHARGE TRANSISTOR, 12.5/8.3V UVLO, 0°C TO 70°C

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UCC3808AD-1

UCC3808AD-1

Obsolete
Texas Instruments

LOW POWER CURRENT MODE PUSH-PULL PWM WITH DISCHARGE TRANSISTOR, 12.5/8.3V UVLO, 0°C TO 70°C

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Description

General part information

UCC3808 Series

The UCCx808A devices are a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCCx808A 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 UCCx808A 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 UCCx808A family offers a variety of package options, temperature range options, and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery-powered systems.

Technical Specifications

Parameters and characteristics for this part

SpecificationUCC3808AD-1
Control FeaturesFrequency Control
Duty Cycle49 %
Frequency - Switching1 MHz
Mounting TypeSurface Mount
Operating Temperature (Max)150 °C
Operating Temperature (Min)-55 °C
Output IsolationIsolated
Package Length0.154 in
Package Name8-SOIC
Package Width3.9 mm
TopologyBoost, Push-Pull, Half-Bridge, Buck
Voltage - Start Up12.5 V
Voltage - Supply (Vcc/Vdd) Maximum15 V
Voltage - Supply (Vcc/Vdd) Minimum8.3 V

Pricing

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CAD

3D models and CAD resources for this part