ADM1041A
ADM1041A is Secondary-Side Controller manufactured by Analog Devices.
FEATURES
Digital calibration via internal EEPROM Supports SSI specification prehensive fault detection Reduced ponent count on secondary side Standalone or microcontroller control
SECONDARY-SIDE FEATURES
Generates error signal for primary-side PWM Output voltage adjustment and margining Current sharing Current-limit adjustment Or FET control Programmable soft-start slew rate Standalone or microcontroller operation Differential load voltage sense AC mains undervoltage detection (ac sense) Overvoltage protection
Secondary-Side Controller with
Current Share and Housekeeping
INTERFACE AND INTERNAL FEATURES
SMBus interface (I2C-patible) Voltage-error amplifier Differential current sense Sense resistor or current transformer option Overvoltage protection Undervoltage protection Overcurrent protection Overtemperature protection Start-up undervoltage blanking Programmable digital debounce and delays 352-byte EEPROM available for field data 160-byte EEPROM for calibration Ground continuity monitoring
APPLICATIONS
Network servers Web servers Power supply control
PWM CONTROLLER
VDD BIAS VDD
THERMISTOR OTP
Or FET
VOUT RLOAD
CS- /VLS CS+ VDD VCMP
FD SHRO
SHRS
VS+ VS-
PULSE AC_OK
MON2 DC_OK
PSON
CCMP SCMP
ADD0 SCL
VDD SHARE BUS
VOUT VS+ VS-
MICROCONTROLLER
OPTIONAL
05405-001
ISOLATION BARRIER
Figure 1. Typical Application Circuit
Rev....