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DS1834DU Equivalent & Substitute Parts
Part Overview
The DS1834DU is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated's EconoReset series, designed for power management applications requiring dual-channel voltage monitoring. This component monitors two voltage thresholds (3.3V and 5V) and provides active-high reset output via push-pull/totem pole configuration. The DS1834DU is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) |
| Type | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 2 |
| Voltage Thresholds | 3.3V, 5V |
| Output Configuration | Push-Pull, Totem Pole |
| Reset Logic | Active High |
| Reset Timeout | 200ms Minimum |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the DS1834DU is determined by strict alignment with the following electrical and mechanical parameters:
- Voltage Monitoring Channels: Must support exactly 2 channels
- Voltage Thresholds: Must support 3.3V and 5V monitoring
- Output Type: Must provide push-pull/totem pole configuration
- Reset Logic: Must be active high
- Reset Timeout: Must meet or exceed 200ms minimum
- Operating Temperature: Must support -40°C to 85°C range
- Package Compatibility: Must use 8-TSSOP or 8-MSOP package with 0.118" (3.00mm) width
- Mounting: Must be surface mount
The DS1834DU+ qualifies as a direct substitute based on identical electrical specifications and package configuration.
Parameter Comparison
| Parameter | DS1834DU (Main Part) | DS1834DU+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Series | EconoReset | EconoReset |
| Type | Multi-Voltage Supervisor | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 2 | 2 |
| Voltage Thresholds | 3.3V, 5V | 3.3V, 5V |
| Output Configuration | Push-Pull, Totem Pole | Push-Pull, Totem Pole |
| Reset Logic | Active High | Active High |
| Reset Timeout | 200ms Minimum | 200ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The DS1834DU+ is the appropriate substitute for the obsolete DS1834DU. Both components share identical electrical and mechanical specifications, ensuring direct functional compatibility. The primary distinction is product lifecycle status: the DS1834DU is obsolete, while the DS1834DU+ maintains active production status.
The DS1834DU+ provides additional compliance advantage through ROHS3 certification, whereas the original DS1834DU is RoHS non-compliant. For new designs or system refreshes, the DS1834DU+ is the recommended selection. Both components maintain REACH Unaffected status and EAR99 export classification.
Frequently Asked Questions (FAQ)
Q: Can the DS1834DU+ be used as a direct replacement for the DS1834DU?
A: Yes. The DS1834DU+ provides identical electrical performance and package configuration. Both components monitor 2 voltage channels at 3.3V and 5V thresholds, deliver active-high push-pull output, and operate across -40°C to 85°C. Pin-for-pin compatibility is maintained.
Q: What is the primary reason to transition from DS1834DU to DS1834DU+?
A: The DS1834DU is classified as obsolete, limiting long-term availability. The DS1834DU+ maintains active production status and provides ROHS3 compliance, supporting current regulatory requirements.
Q: Are there package differences between these parts?
A: No. Both the DS1834DU and DS1834DU+ use identical 8-TSSOP/8-MSOP packaging with 0.118" (3.00mm) width, ensuring mechanical compatibility in existing PCB layouts.
Q: What voltage thresholds are supported?
A: Both components monitor 3.3V and 5V thresholds. The reset timeout is 200ms minimum for both parts.
Q: Is the moisture sensitivity level the same?
A: Yes. Both components have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions.
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