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The RTQ2588-QB is a high-accuracy and low-quiescent automotive reset IC. The RTQ2588-QB provides factory-set sensing options with 50mV steps ranging from 0.5V to 1.1V, and 0.1V steps ranging from 1.2V to 5V, covering most automotive applications. It features overvoltage and undervoltage window voltage sensing with factory-set thresholds of ±4%, ±5%, ±7%, ±9%, and a 3.5μA low supply current.The RTQ2588-QB does not require external divider resistors to sense the voltage, helping system designers save on solution size and cost while maintaining high accuracy performance. It also provides manual reset (MR) and capacitor time (CT) functions to facilitate easy system design.For automotive functional safety applications, the RTQ2588-QB features the built-in self-test (BIST) as a safety mechanism to enhance the system latent point fault metrics (LPFM) scores. The RTQ2588-QB is qualified for AEC-Q100 Grade 1 and is an automotive quality-managed (QM) product from Richtek. It is available in a WDFN-6L 1.5x1.5 (COL) package.The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 125°C.

Applications

  • Advanced Driver Assistance System (ADAS)
  • DSP, Microcontroller, SoC Applications
  • Body Control Module (BCM)
  • In-Vehicle Infotainment (IVI)
  • Digital Instrument Cluster
  • Telematics Box (T-Box)
Key Spec.
RTQ2588-QB
Status Preview
Vin (min) (V) 1.7
Vin (max) (V) 5.5
VTH (min) (V) 0.455
VTH (max) (V) 5.45
Accuracy (±%) 0.25;0.78
Reset Active Type High;Low(Open Drain)
Reset Time-out Period (typ) (ms) 0
Reset Delay Time (typ) (ms) 0.05;1;10;5
Package Type WDFN1.5x1.5-6(COL)
Features
  • AEC-Q100 Grade 1 Qualified
  • Input Voltage Range from 1.7V to 5.5V
  • Low Supply Current with 3.5μA (Typical)
  • Undervoltage-Lockout (UVLO) with 1.65V Falling Threshold
  • High Threshold Accuracy
    - ±0.25% in Typical, ±0.78% in Full Temperature Range
  • Factory-Set Wide Voltage-Sensing Range
    - 0.5V to 1.1V in 50mV/step, 1.2V to 5V in 0.1V/step
  • Factory-Set Input Threshold Levels
    - Available in UV Only and Window Configurations
    - Factory-Set Threshold Options Available: ±4%, ±5%, ±7%, ±9%
  • Factory-Set Output Type
    - Open-Drain (Active-Low); Push-Pull (Active-High or Low)
  • Manual Reset Capable
  • Factory-Set Fixed Options for Reset Recovery Time Delay
    - Option A, E: 50μs, 200μs
    - Option B, F: 1ms, 20ms
    - Option C, G: 5ms, 100ms
    - Option D, H: 10ms, 200ms
  • Programmable Reset Recovery Time Delay Option via an External Capacitor
  • Support the Systematic Capability up to ASIL B Target
    - Built-In Self-Test (BIST) for OV/UV Monitors
  • Ambient Temperature Range: -40°C to 125°C
  • Junction Temperature Range: -40°C to 125°C
Please confirm with our distributor or sales representative for actual stock status.
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