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SX16A-3-5SA Schematic ( PDF Datasheet ) - Bourns Electronic

Teilenummer SX16A-3-5SA
Beschreibung SIP Non-Isolated Power Module
Hersteller Bourns Electronic
Logo Bourns Electronic Logo 




Gesamt 13 Seiten
SX16A-3-5SA Datasheet, Funktion
Features
SIP (Single in-line package)
Output voltage programmable from
0.75 Vdc to 3.3 Vdc via external resistor
Up to 16 A output current
Up to 95 % efficiency
Small size, low profile, cost-efficient open
frame design
Low output ripple and noise
High reliability
Remote on/off
Remote sense
Output overcurrent protection
(non-latching)
Overtemperature protection
Constant switching frequency (300 kHz)
Wide operating temperature range
Optional sequencing function
SX(T)16A-3-5SA SIP Non-Isolated Power Module
Description
Bourns® SX(T)16A-3-5SA is a non-isolated DC-DC converter
offering designers a cost and space-efficient solution with
standard features such as remote on/off, remote sense, precisely
regulated programmable output voltage, overcurrent and over-
temperature protection, and optional output voltage sequencing.
These modules deliver up to 16 A of output current with full load
efficiency of 95 % at 3.3 V output.
Absolute Maximum Ratings
How to Order
S X (T) 16A - 3-5 S A (-P)
Configuration
S = SIP
Internal Identifier
Identifies Sequencing Pin Function
Output Current (Amps)
Input Voltage (V)
Outputs
S = Single
Output Voltage (V)*
A = Adjustable
Optional Positive On/Off Logic
*Fixed output voltage parts and optional features available; contact factory.
Stress in excess of absolute maximum ratings may cause permanent damage to the device. Device reliability may be affected if
exposed to absolute maximum ratings for extended time periods.
Characteristic
Continuous Input Voltage
Operating Temperature Range
Storage Temperature
Sequencing Function
Min.
-0.3
-40
-55
-0.3
Max.
5.8
+85
+125
Vin, max.
Units
Vdc
°C
°C
Vdc
Notes & Conditions
See Thermal Considerations section
Electrical Specifications
Unless otherwise specified, specifications apply over all input voltage, resistive load and temperature conditions.
Characteristic
Operating Input Voltage
Maximum Input Current
Input No Load Current
Input Stand-by Current
Inrush Transient
Input Reflected Ripple Current
Input Ripple Rejection
Min.
2.4
-
Nom.
Max.
5.5
16.0
25
30
1.5
0.1
100
30
Units
Vdc
Adc
mA
mA
mA
A2s
mAp-p
dB
Notes & Conditions
Vout Vin - 0.5 V
Over Vin range, Io max, Vout = 3.3 Vdc
Vin = 5.0 Vdc, Io = 0 A, mod. enabled,
-Vout = 0.75 Vdc
-Vout = 3.3 Vdc
Vin = 5.0 Vdc, module disabled
120 Hz
Caution: The power modules are not internally fused. An external input line fast acting fuse with a maximum rating of 20 A (glass type,
rated to 32V) is required. See the Safety Considerations section of this data sheet.
Applications
Intermediate Bus architecture
Distributed power applications
Workstations and servers
Telecom equipment
Enterprise networks including LANs/WANs
Latest generation ICs (DSP, FPGA, ASIC) and microprocessor powered applications
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
1






SX16A-3-5SA Datasheet, Funktion
SX(T)16A-3-5SA SIP Non-Isolated Power Module
Characteristic Curves (Continued)
Output Voltage: 100 mVolt 10 µs
Output Current (5.0 A/Div): 2 Volt 10 µs
Time (10 µs/div)
Fig. 13 Transient Response - 16 A - 8 A Step
(Vo= 3.3 Vdc, Cext = 3x100 µF Polymer Capacitors)
Output Voltage:
500 mVolt 1 ms
On/Off Voltage:
2 Volt 1 ms
Time (1 ms/div)
Fig. 16 Typical Start-up with Application of Vin
(Vin = 5 Vdc , Vo = 3.3 Vdc , Io = 16 A)
Output Voltage: 500 mVolt 1 ms
On/Off Voltage: 2 Volt 1 ms
Time (1 ms/div)
Fig. 14 Typical Start-up using Remote On/Off
(Vin = 5 Vdc, Vo = 3.3 Vdc, Io = 10 A)
Output Current:
500 mVolt 1 ms
On/Off Voltage:
2 Volt 1 ms
Time (1 ms/div)
Fig. 17 Typical Start-up using Remote On/Off with Prebias
(Vin = 5 Vdc , Vo = 3.3 Vdc , Io = 1 A, Vbias = 1 Vdc )
Output Voltage:
500 mVolt 1 ms
On/Off Voltage:
2 Volt 1 ms
Time (1 ms/div)
Fig. 15 Typical Start-up using Remote On/Off
with Low-ESR External Capacitors (100x100 µF Polymer)
(Vin = 5.0 Vdc , Vo = 3.3 Vdc , Io = 10.0 A, Co = 1000 µF)
6
Output Current (10 A/div): 50 mVolt 5 ms
Time (5 ms/div)
Fig. 18 Output Short Circuit Current
(Vin = 5.0 Vdc , Vo = 0.75 Vdc )
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.

6 Page









SX16A-3-5SA pdf, datenblatt
SX(T)16A-3-5SA SIP Non-Isolated Power Module
Thermal Considerations (Continued)
Air Flow
Tref1 Tref2
Air
Flow
WIND TUNNEL
Airflow and ambient
temp sensor probes
location
C4 C3 C2
C1
L1
Q1
Q2
C2
C1
UNIT UNDER TEST
Fig. 30 Tref1 Temperature Measurement Location
PCB
Fig. 31
Thermal Test Set-up
Product Dimensions
FRONT VIEW OF BOARD (INDUCTOR SIDE)
50.8
(2.00)
SIDE VIEW
7.43
(0.293)
MAX.
6.96
(0.274)
REF.
12.7 12.32
(0.50) (0.485)
12345
1.28
(0.050)
2.54
(0.100)
5.08
(0.200)
7.62
(0.300)
10.16
(0.400)
35.56
(1.400)
38.10
(1.500)
40.64
(1.600)
43.18
(1.700)
45.72
(1.800)
48.26
(1.900)
6 7 8 B* 9 10
11 PINS
0.64
(0.025)
X
0.38
(0.015)
7.6
(0.30)
0.64
(0.025)
PIN
1
2
3
4
5
6
7
8
B (optional)
9
10
L1 (REF.)
6.32
(0.249)
FUNCTION
VOUT
VOUT
SENSE
VOUT
GND
GND
VIN
VIN
SEQ
TRIM
ON/OFF
DIMENSIONS:
MM
(INCHES)
TOLERANCES:
DECIMAL .X ±
0.5
(0.02)
DECIMAL
.XX
±
0.25
(0.010)
*Pin Stuffed with SXT16A option only, absent with SX16A standard
Fig. 32 Product Dimensions
Specifications are subject to change without notice.
12 Customers should verify device performance in their specific applications.

12 Page





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