M20W Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – Power Module

Features
■ 20 watt output power
■ Independently regulated outputs
■ Open-frame design
■ 85 % efficiency
■ 500 V isolation
■ Overvoltage protection
■ Fast transient response
M20W Series – Power Module
■ Short-circuit protection
■ Remote enable
■ Industry-standard pin-out
■ UL 1950
■ Bellcore 1089
■ CISPR 22 Class A
■ EN60950
Electrical Specifications
Nominal Input .........................................48 V
Output Voltage..............................5 & 3.3 V
Output Current...........................3.5 & 5.5 A
Ripple + Noise (mV pkpk) typ. .......30 & 20
Efficiency (typ.) ...................................87 %
Input Specifications
Voltage ......................................36 VDC Min.
48 VDC Nom.
75 VDC Max.
40 V at Startup
Undervoltage Lockout ....................35 VDC
Inrush Current ................1 A @ 75 Vin Max.
Remote Enable
High = Enable.........................2 VDC Min.
Low = Disable .......................1 VDC Max.
E/D Current .........................................1 mA
Isolation Voltage .......500 V Input to Output
Output Specifications
Power.............................................0 to 20 W
Current
3.3 V .......................................0.9 to 4.5 A
5 V .............................................0.6 to 3 A
OCP Trip Point .........................150 % Imax
Voltage Setpoint Accuracy.......±2 % Vnom
Line Regulation .....................±0.1 % Vnom
Load Regulation
...........................±0.1 % Vnom (3.3 Vout)
±0.6 % Vnom (5 Vout)
Dynamic Response
3.3 V Output, ±1.5 A step
..............................50 mV (Di/Dt = 1 A/µs)
60 µs (Di/Dt = 1 A/µs)
5 V output, ±1 A step
..............................50 mV (Di/Dt = 1 A/µs)
300 µs (Di/Dt = 1 A/µs)
Temperature Regulation ......±0.2 %Vout/°C
General Specifications
MBTF ..............3,400 kHrs Full Power, 40 °C
Operating Temperature..........-40 to +85 °C
Full Power, 200 LFM
Storage Temperature...........-55 to +125 °C
Switching Frequency .....................300 kHz
Weight ...............................................26 gm
General Information
The M20W power module is a member of
Bourns industrial temperature range, dual-
output family. The system designer obtains
flexibility in choosing 5 V and 3.3 V
components based on the ability of the
module to supply either voltage over a wide
power range to the load. The output
voltages are tightly and independently
regulated, thus eliminating the common
problem of cross regulation errors between
the outputs. The M20W is capable of 20 W
combined output power. The module is
designed with Bourns’ resonant primary
and synchronous secondary topology for
enhanced reliability and high efficiency,
allowing high-temperature operation.
Product Dimensions
3.30
(.130)
49.02
(1.93)
1.65
(.065)
47.50
(1.870)
Bottom View
+3.3 Vout
+Vin
-Vin
Remote Enable
Gnd
+5 Vout
Gnd
+Vin
100 µf / 100 V
-Vin
49.28
(1.94)
1.65
(.065)
Enable
3.30
(.130)
47.63
(1.875)
3.3 Vout
3 x 220 µf
10 V
3.3 Vreturn
5 Vout
3 x 2200 µf
10 V
5 Vreturn
STANDOFF 2.03
4 PLCS. (0.08)
Dimensions are to the center of the standoff pad.
Pad dimensions are 1.52 x 4.95 (0.060 x 0.195).
Temperature Derating
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0
10
20 30
40 50
60 70
Ambient Temperature, °C Still Air
DIMENSIONS = ^MILLIMETERS
(INCHES)
80 90
How to Order
Configuration
M = Module
Current/Power (Watts)
Input Voltage (Volts)
Outputs
D = Dual
Output Voltage (Volts)
M 20W -48 D 5-3-3
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.