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参数资料
| 型号： | TSM121C |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.05 A DUAL SWITCHING CONTROLLER, 140 kHz SWITCHING FREQ-MAX, PDIP24 |
| 封装： | PLASTIC, DIP-24 |
| 文件页数： | 5/12页 |
| 文件大小： | 126K |
| 代理商： | TSM121C |
TSM121
2/12
PIN DESCRIPTION
Name
Pin #
Type
Function
Vcc
2
Power Supply
Positive Power Supply line.
Gnd
21
Power Supply
Ground. 0V Reference for all voltages.
Housekeeping
Vs12
15
Analog input
Over & under voltage sense input dedicated to the 12V line
Vs5
14
Analog input
Over & under voltage sense input dedicated to the 5V line
Vs33
13
Analog input
Over & under voltage sense input dedicated to the 3.3V line
Tuv
18
Timing capacitor
Adjustable Under voltage blanking delay at Power Up (setting capacitor)
EP
16
Analog input
Extra Protection (Over voltage for -5V and/or -12V line or Primary
OverPower protection). If this extra Protection circuit is not used, pin EP
should be connected to Vref2
Is12
10
Analog input
Over current sense input dedicated to the 12V line
Is5
11
Analog input
Over current sense input dedicated to the 5V line
Is33
12
Analog input
Over current sense input dedicated to the 3.3V line
PI
17
Analog input
Power Good input. This pin detects the power conditions.
PG
9
Open Collector
Power Good output. PG output is High when the power conditions are OK.
Tpg
8
Timing capacitor
Adjustable Power Good delay (setting capacitor)
REM
6
TTL input
Input Remote control of the complete system by the motherboard
(Controller). Remote is active high. Switch OFF/ON of the Power Supply.
Reset of the complete system after a FAULT activation.
Trem
7
Timing capacitor
Adjustable Remote delay (setting capacitor)
Tsur
19
Analog input
Inrush Current Blank (surge) setting resistor and capacitor input. Avoids
that the Housekeeping protection latches on normal start up surge
conditions.
PWM
Vref2
20
Voltage Reference
Voltage Reference for all the PWM section. Vref2 is uncommitted to Vref1
(Housekeeping section). Vref2 should be connected to a decoupling
capacitor (0.1F)
IN+
5
Opamp input
Positive Input of the error amplifier
IN-
4
Opamp input
Negative Input of the error amplifier
FB
3
Feedback
Feedback input of the error amplifier
OSC
22
Timing capacitor
Frequency setting capacitor input
SS/DTC
23
Analog input
Soft Start. Imposes progressive increase of the switching duty cycle to
avoid current inrush at power up. When SS/DTC is high, duty cycle is low.
When SS/DTC is low, duty cycle is high. Dead Time Control. Limits the
maximum duty cycle to a programmable level using appropriate external
bridge resistor.
C1
1
Open Collector
Output Drive (to Pulse Transformer. Open Collector 1)
C2
24
Open Collector
Output Drive (to Pulse Transformer. Open Collector 2)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSM121CN | 功能描述:开关变换器、稳压器与控制器 0.5A Switching Cont RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装: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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