ISL88042

Quadruple Voltage Monitor

OVERVIEW

The ISL88042 is a Quadruple voltage-monitoring supervisor combining competitive reset threshold accuracy and low power consumption. This device combines popular functions such as Power-On Reset, Undervoltage Supply Supervision, reset signaling and Manual Reset. Monitoring four different supplies in a 8 Ld 2x3 TDFN package, the ISL88042 devices can help to lower system cost, reduce board space requirements, and increase the reliability of multi-voltage systems.

Low VDD detection circuitry protects the user's system from low voltage conditions, resetting the system when VDD or any of the other monitored power supply voltages fall below their respective minimum voltage thresholds. The reset signal remains asserted until all of these voltages return to proper operating levels and stabilize.

Two of the four voltage monitors have preset thresholds for either dual 3.3V or one each for one 5V and one 3.3V supplies. Users can adjust the threshold voltages of the third and fourth voltage monitors in order to meet specific system level requirements.

KEY FEATURES

  • Quadruple Voltage Monitoring
  • Fixed-Voltage Options Allow Precise Monitoring of +5.0V and +3.3V Power Supplies
  • Two Adjustable Voltage Inputs Monitor Voltages > 0.6V
  • 95ms Nominal Reset Pulse Width
  • Manual Reset Capability
  • Reset Signals Valid Down to VDD = 1V
  • Immune to Power-Supply Transients
  • Low 22µA Maximum Supply Current at 5V
  • Pb-Free (RoHS Compliant)

PARAMETRICS

Parameters
ISL88042
Basic Information
Production Status
量産中
電圧モニタ数
4
モニタ電圧 (V) (min)
3
モニタ電圧 (V) (max)
5
VMONITOR
Ch1 3.3V or 5V Ch2 3.3V Ch3-Ch4 Adj to 0.6V Ref
出力タイプをリセット
Active Low
手動リセット
Yes
TwinPin™ MR#/RST#
No
WDT
No
調整可能PORタイムアウト
No
特長
Two fixed and two adj. monitors
調整可能Vtrip
Yes
固定Vtrip
Yes
バス/出力インタフェース
N/A
入力電圧 (V) (min)
2
入力電圧 (V) (max)
5.5
認定レベル
Standard
CANサンプル
YES
温度範囲
-40 to +85

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