Renesas Electronics America Inc ISL88021IU8FCZ-TK
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Mfr | Renesas Electronics America Inc |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Type | Multi-Voltage Supervisor |
| Output | Open Drain, Push-Pull |
| Number of Voltages Monitored | 3 |
| Supplier Device Package | 8-MSOP |
| Voltage - Threshold | 2.332V, 3.085V, Adj |
| Reset | Active High/Active Low |
| Reset Timeout | 140ms Minimum |
| Package | Tape & Reel (TR) |
| Product Status | Obsolete |
| Base Product Number | ISL88021 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
ISL88021IU8FCZ-TK Triple voltage monitor IC Push-Pull 3-channel 8-MSOP
The ISL88021IU8FCZ-TK is a high-precision triple voltage monitoring IC designed by Intersil (now part of Renesas Electronics) that provides power supply supervision for complex electronic systems. This multi-voltage supervisor features three independent monitoring channels with adjustable threshold voltages of 2.332V and 3.085V, along with a third adjustable channel for flexible system design. The device comes in a compact 8-MSOP package (3.00mm width) with surface mount technology, making it suitable for space-constrained applications.
Key Features and Specifications
This voltage monitoring IC delivers exceptional performance with a minimum reset timeout of 140ms, providing adequate delay for system stabilization after power-up or voltage transients. The device supports both active high and active low reset configurations, offering design flexibility. With a low operating current of just 15μA, it minimizes power consumption in battery-powered applications. The ISL88021IU8FCZ-TK monitors three voltage rails simultaneously, featuring precision threshold detection with adjustable options for customized voltage monitoring needs.
Applications and Use Cases
The ISL88021IU8FCZ-TK is particularly valuable in mission-critical systems requiring reliable power monitoring, including industrial control systems, telecommunications equipment, medical devices, and automotive electronics. Its triple monitoring capability makes it ideal for complex power systems with multiple voltage rails that need simultaneous supervision. The IC's precision voltage detection ensures proper system sequencing and protects sensitive components from undervoltage or overvoltage conditions. Common applications include power supply sequencing in servers, voltage monitoring in embedded systems, and as a watchdog for microprocessor-based designs. The device's small footprint and low power consumption also make it suitable for portable and battery-powered devices where space and energy efficiency are paramount.
Alternative/Replacement Options
For design flexibility or availability concerns, several alternative voltage monitor ICs may be considered: MAX6746 (3-channel supervisor with adjustable thresholds), TPS3823 (single-channel with watchdog timer), LTC2917 (quad voltage monitor with programmable thresholds), ADM12914 (4-channel digital power monitor with I2C interface), and MIC803 (single-channel microprocessor supervisor).
