PDF預(yù)覽

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36

TOP232-234

TOPSwitch-FX

Family

Design Flexible,

EcoSmart

廬

,

Integrated

Off-line Switcher

Product Highlights

Lower System Cost, High Design Flexibility

鈥?Features eliminate or reduce cost of external components

鈥?Fully integrated soft-start for minimum stress/overshoot

鈥?Externally settable accurate current limit

鈥?Wider duty cycle for more power, smaller input capacitor

鈥?Line under-voltage (UV) detection: no turn off glitches

鈥?Line overvoltage (OV) shutdown extends line surge limit

鈥?Line feed forward with maximum duty cycle (DC

MAX

)

reduction rejects ripple and limits DC

MAX

at high line

鈥?Single resistor sets OV/UV thresholds, DC

MAX

reduction

鈥?Frequency jittering reduces EMI and EMI filtering costs

鈥?Regulates to zero load without dummy loading

鈥?132 kHz frequency reduces transformer/power supply size

鈥?Half frequency option for video applications

鈥?Hysteretic thermal shutdown for automatic recovery

鈥?Large thermal hysteresis prevents PC board overheating

鈥?Standard packages with omitted pins for large creepage

鈥?Active-on and active-off remote ON/OFF capability

鈥?Synchronizable to a lower frequency

AC

IN

廬

廬

+

DC

OUT

-

D

M

CONTROL

TOPSwitch-FX

S

F

C

PI-2503-073099

Figure 1. Typical Flyback Application.

OUTPUT POWER TABLE

230 VAC

鹵

15%

PART

ORDER

Open

1

NUMBER

3

Adapter

Frame

2

85-265 VAC

Adapter

1

Open

Frame

2

EcoSmart

廬

-

Energy Efficient

鈥?Cycle skipping reduces no-load consumption

鈥?Reduced consumption in remote off mode

鈥?Half frequency option for high efficiency standby

鈥?Allows shutdown/wake-up via LAN/input port

TOP232P

TOP232G

TOP232Y

TOP233P

TOP233G

TOP233Y

TOP234P

TOP234G

TOP234Y

9W

10 W

13 W

20 W

16 W

30 W

15 W

25 W

25 W

50 W

30 W

75 W

6.5 W

7W

9W

15 W

11 W

20 W

10 W

15 W

15 W

30 W

20 W

45 W

Description

TOPSwitch-FX

uses the proven

TOPSwitch

topology and cost

effectively integrates many new functions that reduce system

cost and, at the same time, improve design flexibility,

performance and energy efficiency. Like

TOPSwitch,

the high

voltage power MOSFET, PWM control, fault protection and

other control circuitry are all integrated onto a single CMOS

chip, but with two added terminals. The first one is a MULTI-

FUNCTION (M) pin, which implements programmable line

OV/UV shutdown and line feed forward/DC

MAX

reduction with

line voltage. The same pin can be used instead to externally set

an accurate current limit. In either case, this pin can also be used

for remote ON/OFF or to synchronize the oscillator to an

external, lower frequency signal. The second added terminal is

the FREQUENCY (F) pin and is available only in the Y

package. This pin provides the half frequency option when

connected to CONTROL (C) instead of SOURCE (S). The

features on the new pins can be disabled by shorting them to the

SOURCE, which allows the device to operate in a three terminal

Table 1.

Notes:

1.

Typical continuous power in a non-ventilated

enclosed adapter measured at 50 藲C ambient.

2.

Maximum practical

continuous power in an open frame design with adequate heat sinking,

measured at 50 藲C ambient. See key applications section for detailed

conditions.

3.

Packages: P: DIP-8B, G: SMD-8B, Y: TO-220-7B.

TOPSwitch

mode, but with the following new transparent

features: soft-start, cycle skipping, 132 kHz switching frequency,

frequency jittering, wider DC

MAX

, hysteretic thermal shutdown

and larger creepage. In addition, all critical parameters such as

frequency, current limit, PWM gain, etc. have tighter temperature

and absolute tolerances compared to the

TOPSwitch-II

family.

Higher current limit accuracy and larger DC

MAX

, when combined

with other features allow for a 10% to 15% higher power

capability on the

TOPSwitch-FX

devices compared to equivalent

TOPSwitch-II

devices for the same input/output conditions.

July 2001

next

TOP232-234相關(guān)型號PDF文件下載

• 型號
  版本
  描述
  廠商
  下載
• TOP200
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT
  TOP200
• TOP200
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT [...
  TOP200
• TOP201
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT
  TOP201
• TOP201
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT [...
  TOP201
• TOP202
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT
  TOP202
• TOP202
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT [...
  TOP202
• TOP203
  英文版
  Three-terminal Off-line PWM Switch
  TOP203
• TOP204
  英文版
  Three-terminal Off-line PWM Switch
  TOP204
• TOP209
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT
  TOP209
• TOP209
  英文版
  Three-terminal Off-line PWM Switch
  POWERINT [...
  TOP209
• TOP210
  英文版
  Three-terminal Off-line PWM Switch
  TOP210
• TOP214
  英文版
  Three-terminal Off-line PWM Switch
  TOP214
• TOP221
  英文版
  Three-terminal Off-line PWM Switch
  TOP221
• TOP222
  英文版
  Three-terminal Off-line PWM Switch
  TOP222
• TOP223
  英文版
  Three-terminal Off-line PWM Switch
  TOP223
• TOP224
  英文版
  Three-terminal Off-line PWM Switch
  TOP224
• TOP225
  英文版
  Three-terminal Off-line PWM Switch
  TOP225
• TOP226
  英文版
  Three-terminal Off-line PWM Switch
  TOP226
• TOP227
  英文版
  Three-terminal Off-line PWM Switch
  TOP227
• TOP232
  英文版
  Design Flexible, EcoSmart, Integrated Off-line Switcher
  TOP232

您可能感興趣的PDF文件資料

• TOP247FN
• TOP264
• TOP252
• TOP221
• TOP256YN
• TOP245YN
• TOP246YN
• TOP243YN
• TOP223PN
• TOP233YN
• TOP200
• TOP223YN

熱門IC型號推薦

• TOP223GN
• TPS3808G01DBVR
• TLE4299GM
• TLC27M2CDR
• TPS54229EDDAR
• TMS320LF2406APZA
• TPS23750PWPR
• TEA5767HN/V2
• TPS23753APWR
• T405-600B-TR
• TPS63030DSKR
• TPS75701KTTT