at1780 Aimtron Technology, at1780 Datasheet - Page 9

• Manufacturer Part Number: at1780
• Description: 640khz/1.2mhz,low-noise Step-up Current-mode Pwm Controller
• Manufacturer: Aimtron Technology

Preheat
Tsmax to T L
Time maintained above:
Peak Temperature(T P )
Time within 5°C of actual Peak
Temperature (t P )
Ramp-down Rate
Time
Temperature
-Temperature Min(Tsmin)
-Temperature Max (Tsmax)
-Time (min to max)(ts)
-Ramp-up Rate
-Temperature (T L )
-Time (t L )
Average ramp-up rate
Profile Feature
Reflow Profiles
*
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
3/24/06 REV 1.1
25°C
All temperatures refer to topside of the package, measured on the package body surface.
(T L to T P )
to
Peak
volume ≥350mm
≥2.5mm or Pkg.
Pkg. thickness
10-30 seconds
Large Body
225+0/-5°C
Sn-Pb Eutectic Assembly
3°C/second max.
6°C/second max.
60-120 seconds
60-150 seconds
6 minutes max.
100°C
150°C
183°C
3
volume <350mm
<2.5mm or Pkg.
Pkg. thickness
10-30 seconds
9
Small Body
240+0/-5°C
640kHz/1.2MHz,Low-Noise Step-Up
Preliminary Product Information
Current-Mode PWM Controller
WWW:
Email:
3
volume ≥350mm
≥2.5mm or Pkg.
http://www.aimtron.com.tw
Pkg. thickness
[e-mail]
10-30 seconds
Large Body
245+0/-5°C
Pb-Free Assembly
3°C/second max.
3°C/second max.
3°C/second max.
60-180 seconds
60-150 seconds
8 minutes max.
AT1780
150°C
200°C
217°C
3
volume ≥350mm
≥2.5mm or Pkg.
Pkg. thickness
20-40 seconds
Small Body
250+0/-5°C
3