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  • The L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.

    Key Features

    • Defined OFF output status in undervoltage condition and VS or GND interruption
    • K output current limitation, typ. IK = 60 mA
    • High input impedance for open VS or GND connection
    • Controlled output slope for low EMI
    • Defined K output OFF for TX input open
    • Defined output ON status of LO or RX for open LI or K inputs
    • EMI robustness optimized
    • Integrated pull up resistors for TX, RX and LO
    • Overtemperature shut down function Selective to K-I/O pin
    • Bidirectional K-I/O pin with supply voltage dependent input threshold
    • Operating power supply voltage range 4.5 V ≤ VS ≤ 36 V (40 V for transients)
    • Standby mode with very low current consumption ISSB ≤ 1 mA @ VCC ≤ 0.5 V
    • Reverse supply (battery) protected down to VS ≥ -24 V
    • TTL compatible TX input
    • Wide input and output voltage range -24 V ≤ VK ≤ VS
    • Low quiescent current in off condition ISOFF = 120 µA

Circuit Diagram

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STMicroelectronics - L9637

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
E-L9637D
Active
SO-8 Automotive Ecopack2
E-L9637D013TR
Active
SO-8 Automotive Ecopack2

E-L9637D

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

E-L9637D013TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
E-L9637D Available at 7 distributors

Distributor availability ofE-L9637D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 787 1 Order Now
COMPEL EUROPE 2259 1 Order Now
RS COMPONENTS EUROPE 1698 2 Order Now
FUTURE WORLDWIDE 1289 1 Order Now
ARROW EUROPE 1265 0 Order Now
MOUSER WORLDWIDE 914 1 Order Now
Farnell Element14 EUROPE 1084 1 Order Now

Distributor reported inventory date: 2020-10-28

Distributor Name

DIGIKEY

Stock

787

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2259

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1698

Min.Order

2

Region

EUROPE Order Now

FUTURE

Stock

1289

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1265

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

914

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1084

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-28

Free Sample Buy Direct
Active
EAR99 NEC Tube SO-8 -40 150 CHINA 0.7 / 1k
E-L9637D013TR Available at 8 distributors

Distributor availability ofE-L9637D013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7831 1 Order Now
COMPEL EUROPE 3720 1 Order Now
RS COMPONENTS EUROPE 2824 2 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 15000 0 Order Now
MOUSER WORLDWIDE 6344 1 Order Now
Farnell Element14 EUROPE 2208 1 Order Now
RUTRONIK EUROPE 45000 2500 Order Now

Distributor reported inventory date: 2020-10-28

Distributor Name

DIGIKEY

Stock

7831

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3720

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

2824

Min.Order

2

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6344

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2208

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

45000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-28

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 150 CHINA 0.7 / 1k

E-L9637D

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.7 / 1k

Distributor availability ofE-L9637D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 787 1 Order Now
COMPEL EUROPE 2259 1 Order Now
RS COMPONENTS EUROPE 1698 2 Order Now
FUTURE WORLDWIDE 1289 1 Order Now
ARROW EUROPE 1265 0 Order Now
MOUSER WORLDWIDE 914 1 Order Now
Farnell Element14 EUROPE 1084 1 Order Now

Distributor reported inventory date: 2020-10-28

Distributor Name

DIGIKEY

Stock

787

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2259

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1698

Min.Order

2

Region

EUROPE Order Now

FUTURE

Stock

1289

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1265

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

914

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1084

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-28

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.7 / 1k

Country of Origin

CHINA

E-L9637D013TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.7 / 1k

Distributor availability ofE-L9637D013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7831 1 Order Now
COMPEL EUROPE 3720 1 Order Now
RS COMPONENTS EUROPE 2824 2 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 15000 0 Order Now
MOUSER WORLDWIDE 6344 1 Order Now
Farnell Element14 EUROPE 2208 1 Order Now
RUTRONIK EUROPE 45000 2500 Order Now

Distributor reported inventory date: 2020-10-28

Distributor Name

DIGIKEY

Stock

7831

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3720

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

2824

Min.Order

2

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6344

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2208

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

45000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-28

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.7 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors