SGP100
FEATURES
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- Constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry Green-mode function: PWM frequency linearly decreasing Fixed PWM frequency at 42k Hz with frequency hopping to solve EMI problems Low start-up current: 10μA (typical) Low operating current: 6.5m A (typical) Peak-current-mode control in CV mode Cycle-by-cycle current limiting VDD over-voltage protection with latch (OVP) VDD under-voltage lockout (UVLO) Gate output maximum voltage clamped at 18V Fixed over-temperature protection with latch
+/- 10%
APPLICATIONS
- - Battery chargers for cellular phones, cordless phones, PDA, digital cameras, and power tools Replacement for linear transformer and RCC SMPS
DESCRIPTION
This highl y int egrated PWM c ontroller p rovides s everal features to enhance t he per formance of low-power flyback converters. Th e p atented topology o f SGP100 enables si mplified circ uit design f or battery charger
+/- 10%
Io(m A)
Figure 1....
