TL7757

アクティブ

電源電圧スーパーバイザと高精度電圧ディテクタ

ご注文はこちら

データシート

document-pdfAcrobat TL7757 データシート (Rev. I) (英語)

TL7757

アクティブ

データシート

ご注文はこちら

製品詳細

Number of supplies monitored

Threshold voltage 1 (typ) (V)

4.55

Features

Undervoltage monitor only

Reset threshold accuracy (%)

2.6

Iq (typ) (mA)

1.4

Output driver type/reset output

Active-low, Open-drain

Supply voltage (min) (V)

Supply voltage (max) (V)

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

Number of supplies monitored

Threshold voltage 1 (typ) (V)

4.55

Features

Undervoltage monitor only

Reset threshold accuracy (%)

2.6

Iq (typ) (mA)

1.4

Output driver type/reset output

Active-low, Open-drain

Supply voltage (min) (V)

Supply voltage (max) (V)

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

Power-On Reset Generator
Automatic Reset Generation After Voltage Drop
Low Standby Current ...20 µA
RESET\ Output Defined When V_CC Exceeds 1 V
Precision Threshold Voltage 4.55 V ±120 mV
High Output Sink Capability ...20 mA
Comparator Hysteresis Prevents Erratic Resets

Power-On Reset Generator
Automatic Reset Generation After Voltage Drop
Low Standby Current ...20 µA
RESET\ Output Defined When V_CC Exceeds 1 V
Precision Threshold Voltage 4.55 V ±120 mV
High Output Sink Capability ...20 mA
Comparator Hysteresis Prevents Erratic Resets

The TL7757 is a supply-voltage supervisor designed for use in microcomputer and microprocessor systems. The supervisor monitors the supply voltage for undervoltage conditions. During power up, when the supply voltage, V_CC, attains a value approaching 1 V, the RESET\ output becomes active (low) to prevent undefined operation. If the supply voltage drops below threshold voltage level (V_IT–), the RESET\ output goes to the active (low) level until the supply undervoltage fault condition is eliminated.

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