TL7757

활성

공급 전압 통제기 및 정밀 전압 감지기

alarm알림

지금 주문

데이터 시트

document-pdfAcrobat TL7757 datasheet (Rev. I) (영어)

제품 상세 정보

Number of supplies monitored

1

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)

1

Supply voltage (max) (V)

7

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

Number of supplies monitored

1

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)

1

Supply voltage (max) (V)

7

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

SOIC (D)

8

29.4 mm² 4.9 x 6

SOT-89 (PK)

3

18.4275 mm² 4.5 x 4.095

TO-92 (LP)

3

19.136 mm² 5.2 x 3.68

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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