CS2841BEDR14 ,Automotive Current Mode PWM Control CircuitELECTRICAL CHARACTERISTICS (continued) (-40 °C ≤ T ≤ 85°C, R = 680 kΩ, C = 0.022 μF for Triangular ..
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CS2841B-CS2841BEDR14
Automotive Current Mode PWM Control Circuit
CS2841B
Automotive Current Mode
PWM Control Circuit
The CS2841B provides all the necessary features to implement
off-line fixed frequency current-mode control with a minimum
number of external components.
The CS2841B (a variation of the CS2843A) is designed specifically
for use in automotive operation. The low start threshold voltage of 8.0 V
(typ), and the ability to survive 40 V automotive load dump transients
are important for automotive subsystem designs. The CS2841 series
has a history of quality and reliability in automotive applications.
The CS2841B incorporates a precision temperature-controlled
oscillator with an internally trimmed discharge current to minimize
variations in frequency. Duty-cycles greater than 50% are also
possible. On board logic ensures that VREF is stabilized before the
output stage is enabled. Ion implant resistors provide tighter control of
undervoltage lockout.
Features• Optimized for Off-Line Control Internally Trimmed Temperature Compensated Oscillator Maximum Duty-Cycle Clamp VREF Stabilized Before Output Stage Enabled Low Start-Up Current Pulse-By-Pulse Current Limiting Improved Undervoltage Lockout Double Pulse Suppression 1.0 % Trimmed Bandgap Reference High Current Totem Pole Output
