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參數資料
| 型號： | TSM121C |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.05 A DUAL SWITCHING CONTROLLER, 140 kHz SWITCHING FREQ-MAX, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 126K |
| 代理商： | TSM121C |
1/12
s HOUSEKEEPING CIRCUIT :
s Over voltage protection for 3.3V, 5V and 12V
without external components
s Additional Over voltage protection (-5V and/
or -12V, or Primary Over Power control) with
external components
s Under voltage protection for 3.3V, 5V and
12V without external components
s Over current protection for 3.3V, 5V and 12V
with internal threshold voltage
s Externally adjustable Inrush Current blanking
during transients
s Externally adjustable Under voltage blanking
during Power Up
s Power Good output
s Externally adjustable PG delay
s Remote input
s Externally adjustable Remote delay
s Internal Precision Voltage Reference (Vref1)
s PWM GENERATOR :
s Error Amplifier (easy compensation)
s Oscillator (adjustable frequency)
s PWM generation
s Soft Start & Dead Time Control (adjustable)
s Open collector outputs for indirect Pulse
Transformer driving
s Precision Voltage Reference (Vref2) (Uncom-
mitted with Vref1)
DESCRIPTION
The TSM121 integrated circuit incorporates all
sensing circuit to regulate and protect from over
voltage, under voltage and over current a multiple
output power supply (12V, 5V, 3.3V).
TSM121 incorporates all the necessary functions
for proper PWM generation and pulse transformer
drive to be adapted easily in the PC SMPS power
supplies, and all the Housekeeping features which
allow safe operation in all conditions, and very
high integration.
TSM121 integrates two independent Voltage Ref-
erences which are uncommitted to ensure safe
Regulation and Protection by the same chip.
APPLICATION
s Primary PWM and secondary housekeeping
in PC/Server SMPS using Half Bridge topol-
ogy
ORDER CODE
N = Dual in Line Package (DIP)
PIN CONNECTIONS (top view)
Part
Number
Temperature
Range
Package
Marking
N
TSM121C
0 to 85°C
TSM121C
N
DIP24 shrink
(Plastic Package)
VCC
FB
IN-
IN+
OSC
REM
TREM
TPG
PG
IS12
VS33
VS5
VS12
PI
TUV
EP
TSUR
GND
VREF2
SS/DTC
10
9
8
7
6
5
4
3
2
1
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C2
C1
IS5
IS33
TSM121
SINGLE CHIP PWM & HOUSEKEEPING IC
FOR HALF BRIDGE SMPS
January 2001
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSM121CN | 功能描述:開關變換器、穩壓器與控制器 0.5A Switching Cont RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TSM122 | 制造商:Ssac 功能描述: |
| TSM-122-01-F-DH-A | 制造商:Samtec Inc 功能描述:CONN UNSHRD HDR HDR 44 POS 2.54MM SLDR RA SMD - Bulk |
| TSM-122-01-F-DV | 制造商:Samtec Inc 功能描述:.025 SQ. TERMINAL STRIPS - Bulk |
| TSM-122-01-F-DV-A | 制造商:Samtec Inc 功能描述:CONN UNSHRD HDR HDR 44 POS 2.54MM SLDR ST SMD - Bulk |
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