器件名称: DPA425R-TL
功能描述: Highly Integrated DC-DC Converter ICs for Distributed Power Architectures
文件大小: 290.97KB 共36页
简 介:DPA423-426
DPA-Switch Family
Highly Integrated DC-DC Converter ICs for Distributed Power Architectures
Product Highlights
Highly Integrated Solution Eliminates 20-50 external components–saves space, cost Integrates 220 V high frequency MOSFET, PWM control Lower cost plastic DIP surface mount (G package) and through-hole (P package) options for designs ≤35 W Superior Performance and Flexibility Eliminates all external current sensing circuitry Built-in auto-restart for output overload/open loop protection Pin selectable 300/400 kHz fixed frequency Wide input (line) voltage range: 16-75 VDC Source connected tab reduces EMI Line under-voltage (UV) detection: meets ETSI standards Line overvoltage (OV) shutdown protection Low cost synchronous rectification: line UV/OV shut down limits gate drive voltage range from transformer winding Fully integrated soft-start for minimum stress/overshoot Externally programmable current limit Supports forward or flyback topology Cycle skipping: regulation to zero load without pre-load Hysteretic thermal shutdown for automatic fault recovery
VO
SENSE CIRCUIT
DPA-Switch
VIN
RESET/ CLAMP CIRCUIT
D
L
CONTROL
C
S
X
F
PI-2770-032002
Figure 1. Typical Forward Converter Application.
OUTPUT POWER TABLE
36-75 VDC INPUT RANGE (FORWARD)2,4 Total Device Dissipation3 0.5 W PRODUCT4 1 W 2.5 W 4W 6W Max Power Output1
EcoSmart - Energy Efficient Extremely low consumption at no load Cycle skipping at light load for high standby effici……
