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MAX1922ETB+T
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Product Detailed Parameters
- Description：IC PWR SWITCH P-CHAN 1:1 10TDFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：P-Channel
- Interface：On/Off
- Voltage - Load：2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：-
- Current - Output (Max)：1A
- Rds On (Typ)：70mOhm
- Input Type：Non-Inverting
- Features：-
- Fault Protection：Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：10-TDFN (3x3)
- Package / Case：10-WFDFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The MAX1922ETB+T is a dual-channel, single-supply power switch IC designed for USB-compliant applications. It features two independent P-channel switches with an on-resistance of 140mΩ per channel and a typical Rds(on) of 70mΩ at 5V Vcc. The device supports a continuous current rating of 1A and includes built-in protection mechanisms such as thermal shutdown and overcurrent protection with a current limit of 1.75A. It integrates a 7-bit ADC for monitoring chip temperature, per-channel output current, or VDD supply voltage. Operating within a temperature range of -40°C to +85°C, it is housed in a compact TDFN-10 package.
Feature Summary
- Dual-channel P-switch architecture optimized for USB power distribution
- Integrated 7-bit ADC for real-time monitoring of temperature, current, and voltage
- Built-in thermal shutdown and overcurrent protection for system safety
Applications
- USB hub power switching
- Portable device power management
- Peripheral power control in consumer electronics
Procurement Notes
Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status and check for end-of-life notices, as the manufacturer has scheduled this part for obsolescence. Ensure packaging specifications match design requirements before procurement.
Selection Notes
Select this component for designs requiring dual-channel power switching with integrated monitoring capabilities. Consider the 140mΩ on-resistance for efficiency needs and verify that the 1A continuous current rating meets load requirements. Evaluate the TDFN-10 package size against board space constraints.
Part Context
The MAX1922 series belongs to Maxim Integrated's family of high-side power switches. This specific model targets USB applications where space-saving and integrated diagnostics are critical. It complements other USB interface components by providing reliable power control with minimal external circuitry.
Replacement Considerations
Check for direct substitutes from Analog Devices/Maxim Integrated with similar pinout and electrical characteristics. Verify compatibility with existing PCB layouts and firmware if ADC data is utilized.
