apa18t12 Astec Powe, apa18t12 Datasheet

no-image

apa18t12

Manufacturer Part Number
apa18t12
Description
12vin, 75watts, Non-isolated Dc - Dc Pol Sip Converter
Manufacturer
Astec Powe
Datasheet
Special Features
• Point of Load (POL) applications
• High current slew rate at 1A/uS
• Industry standard footprint
• Open frame SIP
• -40qC to +85qC Ambient operating temperature
• Positive enable function
• Low output ripple and noise
• Adjustable output voltage through external resistor
• Regulation to zero load
programming
Safety
UL, cUL
TUV
The single output APA18T12 is a non-isolated, 75W, SIP footprint Point-of-Load (POL) DC/DC converter. The new
APA18T12 series can deliver an adjustable output voltage range from 0.75V – 5.5V at 18 Amps (A) with efficiency as high
as 93.5%, and the input voltage range is from 10 – 14V.
Model: APA18T12 Series
Date: June 2004
APA18T12 - 12Vin, 75Watts, Non-isolated DC – DC POL SIP Converter
EN60950 Licensed
60950 Recognized
APA18T12 DC - DC Series
Technical Reference Note
Preliminary
Electrical Parameters
Input
Input range
Input Surge
Efficiency
Output
Line Regulation
Load Regulation
0.75Vo
0.75 < Vo < 3.3V
3.3V dVo
Regulation
Over operating
Temperature range
Noise / Ripple
0.75 – 5Vo
> 5Vo
Enable
Transient Response
Remote Sense
Turn on input voltage
OCP/OTP
SH 1 OF 17
10 to 14 VDC
15V
92%@3.3Vo (Typical
< 0.5%
7mV
15mV
25mV
< 1.0%
60mV
75mV
TTL compatible
200mV typical deviation
For load change of 50% step
Between 10% to 100% of load
200uS(max) recovery
0.25V
8.7 – 9.7V (Typ)
Hiccup – auto recovery
)

Related parts for apa18t12

apa18t12 Summary of contents

Page 1

... APA18T12 - 12Vin, 75Watts, Non-isolated DC – DC POL SIP Converter The single output APA18T12 is a non-isolated, 75W, SIP footprint Point-of-Load (POL) DC/DC converter. The new APA18T12 series can deliver an adjustable output voltage range from 0.75V – 5. Amps (A) with efficiency as high as 93.5%, and the input voltage range is from 10 – 14V. ...

Page 2

... Note 18A maximum output current with total power limited to 75W. Factory default output voltage set to 0.75V. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary APA18T12 SERIES SIS CODE Vin range APA18T12-9 10V – 14V APA18T12-9H 10V – ...

Page 3

... Refer to Appendix A1 for correct airflow and module orientation &Appendix B for the derating curves of different airflow. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary 1,2 Fast-acting 20A maximum 22uF/16V*3 Ceramic Cap. 10uF Tantalum Cap. +1uF Ceramic Cap ...

Page 4

... Input Voltage Rise Time 10% to 90% of Vout Inrush Current dV /dt IN NOTE: 1. External input capacitance required. See Input Ripple Current test measurement setup on Appendix A2. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Device Symbol All IN, trans All Ta All ...

Page 5

... Enable Pin: Active IN-MIN IN-MAX O,MIN O,MAX Switching Frequency Output Overshoot at T-on / T-off Passive Resistive Full Load Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Device Symb V O,SET All - IN, max 0.75V - 0.75<Vo<3. 3.3VdVo All - 0.75dVo<5.0V - 5VdVo Io 0.75dVo< ...

Page 6

... See appropriate Trim Equation and configuration in Appendix A6. 8. The combination of remote sense and output trim adjust can not exceed 0.25V OCP for Vo<1.5V. Module is protected by OTP when output is overload if Vo<1.5V. 10.Under 25qC. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Device Symbol All - All ...

Page 7

... APPENDIX A1: CONVERTER ORIENTATION WRT TO AIRFLOW Figure 1. Airflow Orientation and Thermal Test Setup Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary ...

Page 8

... Note: Measure input reflected-ripple current with a simulated source inductance (Ltest) of 1uH. Capacitor Cs offsets possible battery impedance. Measure current as shown above. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Figure 2. Input Reflected-ripple current Test Setup ...

Page 9

... Note: Use a 1PF@10V X7R ceramic capacitor and a 10PF @ 25V tantalum capacitor. Scope measurement should be made using a BNC socket. Position the load between 51 mm and in. and 3 in.) from module. Figure 3. Peak-to-Peak Output Noise Measurement Test Setup. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary ...

Page 10

... Note: When measuring dynamic deviation and settling time, 2*150uF Sanyo OS-Con 6SEP150 Polymer external output Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Figure 4.Typical Application Circuit capacitors are needed. Figure 5. Dynamic deviation and settling time ...

Page 11

... APPENDIX A5: TIMING DIAGRAM Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Figure 6. Timing diagram ...

Page 12

... Rtrim (K.) V (V) O, set 0.75 Open 1.2 22.33 1.5 13.0 1.8 9.0 2.5 5.0 3.3 3.12 5.0 1.47 Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary 10500 1000 Rtrim   . the output voltage desired SENSE APA18 TRIM Rtrim GND Figure 7. Trim UP test configuration (Pin Side Up) Co2 Co1 ...

Page 13

... LFM 2 300 LFM Ambient Temp ¡ æ Figure 12: 2.5Vout@12Vin,Thermal Derating curve Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Figure 9: 1.2Vout@12Vin,Thermal Derating curve Figure 11: 1.8Vout@12Vin,Thermal Derating curve Figure 13: 3.3Vout@12Vin,Thermal Derating curve ...

Page 14

... LFM 200 LFM 2 300 LFM Ambient Temp ¡ æ Figure 14: 5.0Vout@12Vin,Thermal Derating curve Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Figure 15: 5.5Vout@12Vin,Thermal Derating curve LFM 4 100 LFM 200 LFM ...

Page 15

... APPENDIX C: MODULE PIN ASSIGNMENT PIN # +V IN Enable GND Sense Note: The pinout assignment of APA18T12-9 and APA18T12-9H are the same. Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary DESIGNATION PIN # + Input Voltage V O ON/OFF Trim Return for V ...

Page 16

... APPENDIX D: MECHANICAL OUTLINE/DRAWING Figure 16. APA18 Mechanical Outline/ Drawing for Vertical type Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary ...

Page 17

... Figure 17. APA18 Mechanical Outline/ Drawing for Horizontal type Pin Number P10 Model: APA18T12 Series Date: June 2004 Technical Reference Note APA18T12 Series Preliminary Pin Connection Vo Output Voltage Vo Output Voltage SENSE Sense Vo Output Voltage GND Ground GND Ground ...

Related keywords