SP791CN-L [EXAR]

Name: SP791CN-L
Brand: EXAR
SKU: SP791CN-L
Availability: InStock

Part No:

SP791CN-L

Power Management ICs

Manufacturer:

EXAR

Description:

The SP791 is a microprocessor (m P) supervisory circuit that integrates a myriad of components involved in discrete solutions to monitor power-supply and battery-control functions in m P and digital systems. The SP791 offers complete m P monitoring and watchdog functions.

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Supply Voltage

0V ~ 5.5V

Package

DIP, SO

RoHS Status

RoHS Compliant

RoHS Status

Ce Propagation Delay

6 ns

ESD Rating

4kV

Output Current Battery Mode

25mA

Output Current Vcc Mode

250mA

Reset Threshold Max

4.75V

Reset Threshold Min

4.50V

Reset Threshold Typ

4.65V

Reset Timeout

140 ms

Reset Timeout Max

280 ms

Reset Timeout Typ

200 ms

SP791C Operating Temperature Max

+70°C

SP791C Operating Temperature Min

0°C

SP791E Operating Temperature Max

+85°C

SP791E Operating Temperature Min

-40°C

Supply Current Backup Max

1mA

Supply Current Backup Min

0.001mA

Supply Current Normal Max

75mA

Supply Current Normal Min

40mA

Vbatt Standby Current Max

0.02mA

Vbatt Standby Current Min

-0.1mA

Watchdog Timeout Max

2.25 sec

Watchdog Timeout Min

1.0 sec

Watchdog Timeout Typ

1.6 sec

Products Detail

The SP791 is a microprocessor supervisory circuit that integrates components for monitoring power-supply and battery-control functions. It offers complete microprocessor monitoring and watchdog functions. Ideal for low-cost battery management and portable applications, it features a supply current of 40mA. It also has a 6ns chip-enable propagation delay, 25mA current output in battery-backup mode, and 250mA current output in standard operation, making it suitable for larger scale, high-performance equipment.

Key Features

Precision 4.65V Voltage Monitoring
200ms Power-OK/Reset Time Delay
Independent Watchdog Time-Preset or Adjustable
75mA Maximum Operating Supply Current
1.0mA Maximum Battery Backup Current
0.1mA Maximum Battery Standby Current
Power Switching: 250mA Output in Vcc Mode, 25mA Output in Battery Mode
On-Board Gating of Chip-Enable Signals, Memory Write-Cycle Completion, 6ns CE Gate Propagation Delay
Voltage Monitor for Power-Fail or Low Battery
Backup-Battery Monitor
RESET Valid to Vcc=1V
Pin Compatible Upgrade to MAX791
Lead Free available
Manual-Reset input
Power Fail Comparator for power-fail warning and low-battery detection
Watchdog function that monitors mP activity
Internal switch for Vcc to Vbatt switchover

Application scenarios

Portable battery-powered equipment
microprocessor systems
memory backup
power management

Documents

Datasheets:

SP791CN-L-Exar-datasheet-45138.pdf

Product FAQ

1. Is SP791CN-L available for RFQ?

Yes. SP791CN-L by EXAR is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for SP791CN-L?

Pricing for SP791CN-L can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of SP791CN-L?

SP791CN-L is a EXAR Power Management ICs with SP791C Operating Temperature Max: +70°C and SP791C Operating Temperature Min: 0°C. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for SP791CN-L?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can SP791CN-L be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to SP791CN-L?

Yes. If SP791CN-L is unavailable, obsolete, or does not meet your required lead time, we can help check similar EXAR Power Management ICs parts or compatible alternatives.

RFQ

Part Number:

SP791CN-L

Manufacturer:

EXAR

Looking for Pricing? Contact us for volume pricing.

Shipping & Warranty

Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

Unishop Global Export: 1-7 days, $40.00

Guaranteed Delivery: Door-to-door in 30 days

Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

Feature

30-Day Guarantee
Fasted Delivery
Hassle-Free Returns
Secure payment method

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Precision 4.65V Voltage Monitoring
200ms Power-OK/Reset Time Delay
Independent Watchdog Time-Preset or Adjustable
75mA Maximum Operating Supply Current
1.0mA Maximum Battery Backup Current
0.1mA Maximum Battery Standby Current
Power Switching: 250mA Output in Vcc Mode, 25mA Output in Battery Mode
On-Board Gating of Chip-Enable Signals, Memory Write-Cycle Completion, 6ns CE Gate Propagation Delay
Voltage Monitor for Power-Fail or Low Battery
Backup-Battery Monitor
RESET Valid to Vcc=1V
Pin Compatible Upgrade to MAX791
Lead Free available
Manual-Reset input
Power Fail Comparator for power-fail warning and low-battery detection
Watchdog function that monitors mP activity
Internal switch for Vcc to Vbatt switchover