Description
® RT8541/A 90V Boost DC/DC Converter with APD Current Monitor General .
The RT8541/A is a constant frequency current mode PWM step-up DC/DC converter designed to bias avalanche photodiodes (APD) at high voltage in optical.
Features
* a built-in 9ms soft-start function to eliminate the inrush current during start-up interval. The RT8541/A provides a low cost optical receiver solution and can fit in very small PCB area. The RT8541/A is available in the WQFN-16L 3x3 package. Features
* Integrated Schottky Diodes for Charge Pum
Applications
* APD Bias
* PIN Diode Bias
* Optical Receivers and Modules
* Fiber Optic Network Equipment
Simplified Application Circuit
L C1
VIN CIN
SW PUMP
VIN RT8541/A
R5
CTRL
MONIN
SHDN
VOUT2
VC
R4
FSET
VOUT1
RSET C4
GND
FB
MON APD
R6
C2 C3
CFB R2
VOUT COUT
R1 R3
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