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XC9101

Series

2. Oscillation Frequency

The oscillation frequency of the internal clock generator is approximated by the following equation according to the values

of the capacitor and resistor attached to the CLK pin. To stabilize the IC's operation, set the oscillation frequency within a

range of 100kHz to 600kHz. Select a value for Cclk within a range of 150pF to 220pF and fix the frequency based on the

value for Rclk.

Example: When Cclk = 220 pF and Rclk = 10 kΩ, f = 1 / (-220 x 10

3. Gain and Frequency Characteristics of the Verr Amplifier

The gain at output and frequency characteristics of the Verr amplifier are adjusted by the values of the capacitor and

greater the CC value, the more stable the phase and the slower the transient response. When using the IC with RGAIN

4. Current Limit

ILpeak_limit = 0.15/RSEN

bigger, and it could lead to an intermittent oscillation. Please be careful if there is a problem with the application. When

current limit voltage of 90mV (MIN.). For more details, please refer the notes on the external components.

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OPERATIONAL EXPLANATION (Continued)

CLK pin

Rclk

CLK Generator

Cclk

Verr

CC/GAIN pin

RGAIN

CC

Vref

RVerr

Rsen

Isen pin

Limiter signal

Comparator with

150ｍV offset