Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
20-TSSOP (0.173, 4.40mm Width) |
Number of Pins |
20 |
Weight |
190.990737mg |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2013 |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
40 |
Base Part Number |
SI9122 |
Function |
Step-Up/Step-Down |
Number of Outputs |
1 |
Output Voltage |
3.3V |
Output Type |
Transistor Driver |
Operating Supply Voltage |
72V |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive, Isolation Capable |
Output Current |
2.5mA |
Voltage - Supply (Vcc/Vdd) |
10V~13.2V |
Control Features |
Current Limit, Sequencing, Soft Start |
Topology |
Half-Bridge |
Control Mode |
VOLTAGE-MODE |
Frequency - Switching |
500kHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PUSH-PULL |
Max Frequency |
750kHz |
Max Duty Cycle |
95 % |
Duty Cycle (Max) |
92% |
Clock Sync |
No |
Length |
6.5mm |
Width |
4.4mm |
RoHS Status |
ROHS3 Compliant |
SI9122DQ-T1-E3 Overview
Capsuled in the 20-TSSOP (0.173, 4.40mm Width) package, the switching controller can be used for a wide range of applications. This dc motor controller can be used to generate outputs with 1 numbers. There is a Tape & Reel (TR) solid enclosure around the pmic. With this function, you can deal with Transistor Driver dc switching's outputs (s). This dc control has a supply voltage and operating voltage of 10V~13.2V. Worked in a -40°C~85°C TA dc switcher before. A switching controller such as this can switch at a value of 500kHz . The Surface Mount allows it to be used for dc dc regulator in general. Current Limit, Sequencing, Soft Start is used for efficient switching control in the dcdc regulator. A SWITCHING CONTROLLER analog IC is connected to the switch converters. Switching converters are designed with the terminal (s) at position DUAL . A variety of terminations with 20 of dc switching. These dc dc converter ics adapt several control methods, including PULSE WIDTH MODULATION. The DC switcher's nominal voltage is 12V. Other relevant dc to dc converter ics can be found by searching "SI9122". 20 pins are on switching converter. In particular, switching converter is a type of Switching Regulator or Controllers. According to the test statistics, DC regulator outputs 3.3V voltage. If you are starting a new project, you should note the dc dc regulator's typical output current is 2.5mA. To ensure the reliability under power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set as 95 %. In most applications and prototype designs, DC switcher is qualified as a Surface Mount. 750kHz is the maximum frequency of this dc regulators. When running the voltage regulator dc to dc in a circuit, users should apply 72V to ensure safety and reliability.
SI9122DQ-T1-E3 Features
Transistor Driver Outputs
Switching Frequency: 500kHz
Current Limit, Sequencing, Soft Start
PULSE WIDTH MODULATION
Max Duty Cycle: 95 %
SI9122DQ-T1-E3 Applications
There are a lot of Vishay Siliconix SI9122DQ-T1-E3 DC to DC converter applications.
- Scientific research
- Packaging
- Computer monitoring equipment of building
- Combined machine tools
- Direct power supply system
- Program control systems
- Window air conditioners
- Electric water heaters
- Game consoles
- Imported equipment