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參數(shù)資料
| 型號(hào)： | UCC1806Q |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER |
| 中文描述： | 低功耗，雙輸出，電流模式PWM控制器 |
| 文件頁(yè)數(shù)： | 1/21頁(yè) |
| 文件大?。?/td> | 726K |
| 代理商： | UCC1806Q |
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SLUS272C FEBRUARY 2000 REVISED JUNE 2003
1
www.ti.com
FEATURES
BiCMOS Version of UC3846 Family
1.4-mA Maximum Operating Current
100-
μ
A Maximum Startup Current
±
0.5-A Peak Output Current
125-ns Circuit Delay
Easier Parallelability
Improved Benefits of Current Mode Control
DESCRIPTION
The UCC3806 family of BiCMOS PWM controllers
offers exceptionally improved performance with a
familiar architecture. With the same block diagram
and pinout of the popular UC3846 series, the
UCC3806 line features increased switching
frequency capability while greatly reducing the
bias current used within the device. With a typical
startup current of 50
μ
A and a well defined voltage
threshold for turn-on, these devices are favored
for applications ranging from off-line power
supplies to battery operated portable equipment.
Dual high-current, MOSFET driving outputs and a
fast current sense loop further enhance device
versatility.
All the benefits of current mode control including
simpler loop closing, voltage feed-forward,
parallelability with current sharing, pulse-by-pulse
current
limiting,
and
correction are readily achievable with the
UCC3806 series.
push/pull
symmetry
These devices are available in multiple package
options for both through-hole and surface mount
applications; and in commercial, industrial, and
military temperature ranges.
The UCC3806 is specified for operation from
55
°
C to 125
°
C, the UCC2806 is specified for
operation from 40
°
C to 85
°
C, and the UCC3806
is specified for operation from 0
°
C to 70
°
C.
SIMPLIFIED APPLICATION DIAGRAM
2
8
5
1
6
11
14
15
INV
AOUT
BOUT
VREF
CT
NI
CURLIM
UCC3806
10
9
SYNC
RT
4
CS+
VIN
15
13
VC
7
COMP
UCC3612
CS
3
12
GND
UC39431
+VIN
+VOUT
SHUT
DOWN
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Copyright
1999 2003, Texas Instruments Incorporated
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| UCC3806L | LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER |
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| UCC3806PWTR | LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER |
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