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UCC38084D 用户编程技术手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
SOIC-8
描述:
UCC28/UCC38 系列，Texas Instruments隔离式回扫电源控制器提供恒定电压 (CV) 和恒定电流 (CC) 输出调节，用于提高对较大负载阶跃的瞬时响应。 初级侧调节 (PSR) 无需光耦合器。### 回扫控制器，Texas Instruments电流模式和电压模式 PWM 控制器 初级侧调节 峰值功率模式 低功率
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UCC38084D数据手册
Page:
of 28 Go
若手册格式错乱，请下载阅览PDF原文件
SLUS488E − SEPTEMBER 2002 − REVISED JULY 2009
2
www.ti.com
ORDERING INFORMATION
THERMAL RESISTANCE TABLE
PACKAGE
θjc(°C/W) θja(°C/W)
SOIC−8 (D) 42 84 to 160
(1)
PDIP−8 (P) 50 110
(1)
TSSOP−8 (PW) 32
(2)
232 to 257
(2)
NOTES: (1) Specified θja (junction to ambient) is for devices mounted to 5-inch
2
FR4 PC board
with one ounce copper where noted. When resistance range is given, lower values
are for 5 inch
2
aluminum PC board. Test PWB was 0.062 inch thick and typically
used 0.635-mm trace widths for power packages and 1.3-mm trace widths for
non-power packages with a 100-mil x 100-mil probe land area at the end of each
trace.
(2). Modeled data. If value range given for θja, lower value is for 3x3 inch. 1 oz internal
copper ground plane, higher value is for 1x1-inch. ground plane. All model data
assumes only one trace for each non-fused lead.
AVAILABLE OPTIONS
T
A
INTERNAL
SOFT START
UVLO PACKAGES
T
A
INTERNAL
SOFT START
ON OFF SOIC-8 (D) PDIP-8 (P) TSSOP-8 (PW)
3.5 ms
12.5 V 8.3 V UCC28083D UCC28083P UCC28083PW
−40°C to 85°C
3.5 ms
4.3 V 4.1 V UCC28084D UCC28084P UCC28084PW
−40
°
C to 85
°
C
75 µs
12.5 V 8.3 V UCC28085D UCC28085P UCC28085PW
75
µ
s
4.3 V 4.1 V UCC28086D UCC28086P UCC28086PW
3.5 ms
12.5 V 8.3 V UCC38083D UCC38083P UCC38083PW
0°C to 70°C
3.5 ms
4.3 V 4.1 V UCC38084D UCC38084P UCC38084PW
0
°
C to 70
°
C
75 µs
12.5 V 8.3 V UCC38085D UCC38085P UCC38085PW
75
µ
s
4.3 V 4.1 V UCC38086D UCC38086P UCC38086PW
†
The D and PW packages are available taped and reeled. Add R suffix to device type, e.g. UCC28083DR (2500 devices
per reel) or UCC38083PWR (2000 devices per reel).
1
2
3
4
8
7
6
5
CTRL
ISET
CS
RT
VDD
OUTA
OUTB
GND
D OR P PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
PW PACKAGE
(TOP VIEW)
OUTB
GND
RT
CS
OUTA
VDD
CTRL
ISET
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