AM20U-C Series
20 watt dc-dc converters
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POWER MODULES FOR PCB MOUNTING
V-OUT TRIM AND ON/OFF CONTROL
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REGULATED OUTPUT
LOW RIPPLE & NOISE
DC-DC CONVERTERS
GENERAL DESCRIPTION
Our AM20U-C series is a family of cost effective 20W single, dual
& triple output DC-DC converters. These converters are shielded on
all six sides and encapsulated with a nickel-coated copper with a
non-conductive base and dimensions of 50.8x50.8x10.8mm. The
high performance features of our AM20U-C components include
short circuit protection with hiccup auto recovery, tight line regula-
tion and a high efficiency operation coefficient up to 82%.
Thirty models operate from an input voltage range of 12,
24 & 48VDC producing single, dual or triple output volt-
ages. The normal operation is specified over the full
operating temperature range of -25°C to +71°C with no
derating required. Cooling is done by free air convection.
ELECTRICAL SPECIFICATIONS
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications:
Voltage range
Output Specifications:
Voltage accuracy
Ripple
Noise
Short circuit protection
Over current protection
Filter
Isolation Specifications:
Rated voltage
Resistance
Capacitance
General Specifications:
Efficiency
Switching frequency
12VDC, 9~18VDC
24VDC, 18~36VDC
48 VDC, 36~75VDC
p
(Pi) Network
1500VDC
>1000 Mohms
1000pF
77% to 82%
200KHz, typ. 100% load
±2%, max.
<0.2% Vout +20mVmax (Vp-p)
<0.5% Vout +50mVmax (Vp-p)
Hiccup, auto-recovery
Works over 120% of rating
and recovers automatically
Over voltage protection Zener diode clamp protection
Line regulation (HL-LL) ±0.5%, typ.
±1%/±5%-for triple output
Load regulation(10-100%) ±0.5%, typ.
±3% -dual; ±3%/±5%-triple
Temperature coefficient ±0.02%/°C, typ.
Physical Specifications:
Dimensions
50.8x50.8x10.8mm
2.0x2.0x0.42inches
Weight
70g
Case material
Nickel-Coated Copper with
Non-Conductive base,
six sides’ shielded
Environmental Specifications:
Operating temperature
-25°C …+71°C
Storage temperature
-55°C …+105°C
Case temperature
+95°C, max.
Humidity (non-condensing)
Up to 95%
Cooling
Free-air convection
Specifications are subject to change without notification
MTBF: > 550,000 hrs (MIL-HDBK-217F, Ground Benign, t=+25ºC)
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