DESCRIPTION The ZXCT1009 is a high side current sense monitor Using this device eliminates the need to disrupt the ground plane when sensing a load current

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Description

1 SEMICONDUCTORS DESCRIPTION The ZXCT1009 is a high side current sense monitor. Using this device eliminates the need to disrupt the ground plane when sensing a load current. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. A user defined output resistor scales the output current into a ground-referenced voltage. The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum operating current of just 4A, combined with its SOT23 package make it a unique solution for portable battery equipment. FEATURES • Low cost, accurate high-side current sensing • Output voltage scaling • Up to 2.5V sense voltage • 2.5V – 20V supply range • 4µA quiescent current • 1% typical accuracy • SOT23 and SM8 packages APPLICATIONS • Battery chargers • Smart battery packs • DC motor control • Over current monitor • Power management • Level translating • Programmable current source ZXCT1009 ISSUE 7 - JULY 2004 HIGH-SIDE CURRENT MONITOR APPLICATION CIRCUIT DEVICE REEL SIZE TAPE WIDTH QUANTITY PER REEL PARTMARKING PACKAGE ZXCT1009FTA 7” 8mm 3,000 units 109 SOT23 ZXCT1009T8TA 7” 12mm 1,000 units ZXCT1009 SM8 ORDERING INFORMATION

  • output current

  • vsense - supply voltage

  • voltage developed

  • pin

  • vin

  • °c package power

  • vsense


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DEVICE
ZXCT1009T8TA
ISSUE 7  JULY 2004
ZXCT1009
SM8
FEATURES Low cost, accurate highside current sensing
DESCRIPTION The ZXCT1009 is a high side current sense monitor. Using this device eliminates the need to disrupt the ground plane when sensing a load current.
1,000 units
QUANTITY PER REEL
PARTMARKING
PACKAGE
DC motor control
Level translating
Programmable current source
A user defined output resistor scales the output current into a groundreferenced voltage.
ZXCT1009
Smart battery packs
HIGHSIDE CURRENT MONITOR
REEL SIZE
TAPE WIDTH
Over current monitor
8mm
S E M I C O N D U C T O R S
1
7”
12mm
7”
ORDERING INFORMATION
APPLICATIONS Battery chargers
Power management
APPLICATION CIRCUIT
SOT23
1% typical accuracy
It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current.
The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum operating current of just 4A, combined with its SOT23 package make it a unique solution for portable battery equipment.
109
Output voltage scaling
Up to 2.5V sense voltage
4µA quiescent current
2.5V – 20V supply range
ZXCT1009FTA
SOT23 and SM8 packages
3,000 units