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Analog Devices Inc./Maxim Integrated MAX1930ESA
- Part No.:
- MAX1930ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX1930ESA.pdf
- Description:
- SWITCH FOR TWO USB PORTS
- Quantity:
- Payment:
- Shipping:
Inventory:10,011
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Product details
Overview
MAX1930ESA from Maxim Integrated is a dual-channel, current-limited P-channel MOSFET power switch for USB port protection, featuring 125mΩ max RDS(ON), 1.2A–2.3A programmable current limit, and 2.7V–5.5V input operation. It delivers fault-blanked short-circuit protection, thermal shutdown at 165°C, and ultra-low 1µA standby current-ideal for notebook USB hub power management.
For engineers reviewing the MAX1930ESA datasheet, MAX1930ESA pinout, MAX1930ESA application, or MAX1930ESA equivalent, key selection criteria include its dual OUT-pin configuration, EN-active-low enable logic, guaranteed current-limit accuracy across -40°C to +85°C, and UL recognition (E211395) for safety-critical portable designs.
Technical Context
The MAX1930ESA integrates two independent high-side P-MOSFET switches in a single SO-8 package, each with dedicated IN/OUT pins and shared EN and GND. Its current-limit architecture uses a 13,000× replica MOSFET and internal 1.24V reference to regulate output current without external components.
Thermal shutdown operates at 165°C with 20°C hysteresis, enabling auto-recovery under persistent faults. Undervoltage lockout activates below 2.0V (rising edge), preventing erratic switching during brownout conditions-critical for battery-backed USB systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit Range | 1.2A min to 2.3A max-guaranteed over temperature, enables precise USB 2.0 port compliance without calibration. |
| RDS(ON) (max) | 125mΩ at VIN = 3V-limits I²R loss to ≤0.32W at 1.6A, reducing thermal stress in compact layouts. |
| Supply Voltage Range | 2.7V to 5.5V-supports both 3.3V and 5V USB host rails without level-shifting circuitry. |
| Quiescent Current | 16µA typical-extends battery life in always-on USB detection circuits. |
| Standby Current | 1µA max-enables zero-power sleep mode when EN is high and no load is connected. |
| UVLO Threshold | 2.0V to 2.6V rising edge with 100mV hysteresis-prevents oscillation during slow power-rail ramp-up. |
| Thermal Shutdown | 165°C junction temperature-protects die integrity during sustained short-circuit events. |
Pinout & Package
MAX1930ESA is housed in an 8-pin SO (Small Outline) package with exposed pad not present; footprint conforms to JEDEC MS-012, 150-mil body width, 1.27mm pitch. Thermal performance relies on wide copper planes connected to IN and OUT pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for all internal circuitry and current-sense amplifier. |
| 2,3 | IN | P-channel MOSFET source terminals-must be tied together and bypassed with ≥1µF ceramic capacitor to GND. |
| 4 | EN | Active-low enable input-logic low (≤0.8V) turns on both switches; high-Z state disables output. |
| 5 | OUTNC | No-connect pin-internally unconnected; may be tied to OUT for mechanical stability but carries no electrical function. |
| 6,7,8 | OUT | P-channel MOSFET drain terminals-tied together externally to drive dual USB loads; bypass with 0.1µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognition | UL# E211395 certified-meets safety requirements for end-equipment without additional isolation components. |
| Fault-Blanked Current Limit | Internal blanking prevents false triggering during capacitive load turn-on transients common in USB enumeration. |
| Short-Circuit Foldback | Reduces short-circuit current to 1A continuous-limits power dissipation to <0.2W even at 5V input. |
| Thermal Cycling Recovery | Auto-restarts after cooling 20°C below 165°C-provides graceful degradation instead of latch-off failure. |
| Input Voltage Monitoring | Undervoltage lockout ensures stable gate drive only when VIN exceeds safe MOSFET threshold margin. |
Applications
| Notebook Computers | USB Hubs |
|---|---|
Use Scenario: Dual USB ports on ultraportable notebooks require independent overcurrent protection with minimal board area. IC Role / Device Role / Timing Role: High-side current-limited power switch managing VBUS delivery per port, responding within 200µs to overload events. Use Value: Eliminates need for discrete fuses or dual ICs-reduces BOM count by 50% while maintaining USB-IF compliance. | Use Scenario: Self-powered USB hubs must protect downstream ports against hot-plug surges and cable shorts. IC Role / Device Role / Timing Role: Dual-channel power distribution switch with foldback current limiting and thermal recovery. Use Value: Enables Class-A hub certification by guaranteeing ≤1.2A per port under fault, meeting USB 2.0 specification limits. |
| Docking Stations | Industrial USB Peripherals |
Use Scenario: Docking stations supply power to multiple peripherals (keyboard, mouse, storage) via USB-A ports. IC Role / Device Role / Timing Role: Fault-tolerant power controller with 1µA standby current enabling instant wake-from-sleep functionality. Use Value: Reduces system standby power by >90% versus discrete solutions, extending dock battery backup runtime. | Use Scenario: Ruggedized industrial USB devices operate in wide-temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Temperature-stable current limiter with guaranteed 1.2A minimum limit across full extended range. Use Value: Ensures consistent port protection without derating-avoids field failures due to cold-temperature current-limit drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limited USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2012D | Pin-compatible but higher RDS(ON) (150mΩ typ), no UL recognition, 25µA quiescent current. | Lacks UL certification; requires external UVLO circuitry for brownout immunity. | Select when cost sensitivity outweighs safety certification and ultra-low IQ requirements. |
| AP2171SG-13 | Single-channel, 1.5A fixed limit, 110mΩ RDS(ON), no thermal shutdown, SOT-23-5 package. | Requires two devices for dual-port use; no auto-recovery under thermal fault. | Select for space-constrained single-port designs where thermal cycling is not required. |
Compared with TPS2012D and AP2171SG-13, MAX1930ESA uniquely combines dual-channel integration, UL recognition, 1µA standby current, and thermal auto-recovery-making it optimal for certified, battery-sensitive dual-USB applications where reliability and safety are non-negotiable.
Availability
MAX1930ESA is available at Aetrix Electronics and suitable for notebook computers, USB hubs, and docking stations requiring stable component supply, long-term lifecycle support, and UL-certified power switching.
Supply support for MAX1930ESA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, computing, and communications applications.
The MAX1930ESA belongs to Maxim's USB power-distribution switch family, engineered specifically for fault-protected, low-quiescent-current VBUS control in portable and embedded USB systems.
FAQ
What is the maximum continuous output current supported by the MAX1930ESA?
The MAX1930ESA guarantees a current limit between 1.2A (minimum) and 2.3A (maximum) under all operating conditions. This preset range is internally trimmed and does not require external resistors. At 2.3A and 125mΩ RDS(ON), power dissipation remains within safe limits for SO-8 packaging-ensuring reliable operation in dual-USB port applications without forced airflow.
Does the MAX1930ESA support bidirectional current flow?
No, the MAX1930ESA is a unidirectional high-side P-channel MOSFET switch. Its architecture requires VIN to be higher than VOUT at all times-consistent with standard USB VBUS power delivery. Reverse current flow (e.g., backfeeding from a powered peripheral) is blocked by the intrinsic body diode orientation and is not supported by the device's control circuitry.
How does the MAX1930ESA handle short-circuit events on the output?
During an output short-circuit, the MAX1930ESA activates foldback current limiting, reducing output current to 1A continuous. Simultaneously, thermal shutdown engages if junction temperature exceeds 165°C. Once cooled by 20°C, the device automatically recovers-producing a pulsed output until the fault is removed. This behavior is documented in the "Continuous Short-Circuit Protection" section of the MAX1930ESA datasheet.
Can the MAX1930ESA be used with 3.3V-only systems?
Yes, the MAX1930ESA operates across 2.7V to 5.5V, fully supporting 3.3V input rails. Its 125mΩ max RDS(ON) at VIN = 3V ensures ≤0.25W conduction loss at 1.6A, and undervoltage lockout remains active down to 2.0V-making it robust for battery-powered 3.3V USB host designs without voltage translation.
Is the OUTNC pin on the MAX1930ESA required to be connected?
No, the OUTNC pin (Pin 5) is internally unconnected and serves no electrical function. It may be left floating, tied to OUT for mechanical reinforcement, or grounded-none of these configurations affect MAX1930ESA operation. The pin exists solely for package symmetry and thermal balance in the SO-8 outline.
MAX1930ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.3A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Over Load, Over Temperature, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX1930ESA FAQ
1.How can I place an order for MAX1930ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1930ESA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1930ESA reliable?
The price and inventory of MAX1930ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1930ESA is usually 5 days.
3.What payment methods are accepted for MAX1930ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1930ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1930ESA?
MAX1930ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1930ESA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1930ESA?
For technical support, including MAX1930ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1930ESA requirements.
6.How does Aetrix verify that MAX1930ESA is sourced from the original manufacturer or authorized distributors?
All MAX1930ESA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1930ESA meets industry standards.
7.What is the process for return or replacement of MAX1930ESA?
All MAX1930ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX1930ESA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1930ESA part is unused and in its original packaging.
Return procedure for MAX1930ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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