U9751B-R16-R / Unisonic Technologies - 데이터시트(PDF) Chat AI

U9751B-R16-R Datasheet with Chat AI

Hello, Please ask a question about U9751B-R16-R Datasheet

# Example questions: ➢ What is the minimum scp input threshold voltage (vi(thr))?
➢ What is the purpose of the dead-time control section in the u9751b, and what is the latched input voltage (vi(lth)) for this section?
➢ What is the typical operating frequency of the u9751b when ct = 220pf and rt = 10kω?

Part No.	U9751B-R16-R
Manufacturer	UTC
Size	137 Kbytes
Pages	6 pages
Description	DOUBLE CHANNELS PWM CONTROLLER

Datasheet Summary with AI

# U9751B Double Channels PWM Controller

## Features
️· Switch frequency: 400KHz
️· ISINK = 400mA
️· Wide work voltage
️· Programmable dead-time control
️· UVLO (Under Voltage Lockout) protection
️· SCP (Short Circuit Protection)
️· Low static supply current

## Applications
️· DC/DC converters for video cameras, backlight inverters, and notebook computers.

## Package Options
️· DIP-16
️· SOP-16
️· SSOP-16 (150mil)
️· Pb-free plating options available (U9751BL)
- Tape Reel (R) or Tube (T) packaging

## Pin Configuration
️· CT: Oscillator frequency control capacitor
️· RT: Oscillator frequency control resistor
️· EA1+, EA1-, FB1, DTC1, OUT1: Error amplifier & output for Channel 1
️· EA2+, EA2-, FB2, DTC2, OUT2: Error amplifier & output for Channel 2
️· VCC: Power Supply
️· GND: Ground
️· VREF: Internal 2.5V Reference Voltage
️· SCP: Short Circuit Protection Input

## Absolute Maximum Ratings
️· Supply Voltage (VCC): +38V
️· Operating Temperature: -20°C to +85°C
️· Storage Temperature: -55°C to +150°C

## Key Electrical Characteristics (VCC=6V, f=200kHz)
️· Internal Reference Voltage (VREF): 2.46V (typ)
️· Short-Circuit Output Current (IO(SC)): 22mA (typ)
️· UVLO Threshold Voltage (VTHR): 2.8V (typ)
️· SCP Input Threshold Voltage (VI(THR)): 1.3V (typ)
️· Frequency: 400kHz (typ)
️· Standby Supply Current (ISTN-BY): 1.7mA (typ)
️· Average Supply Current (IAVE): 2.6mA (typ)