L9823

On Time (Max) :
Off Time (Max) :
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 150 C
Package / Case : SO-24
Number of Outputs : 8
On Resistance (Max) : 0.8 Ohms
Operating Supply Voltage : 4.5 V to 5.5 V
Supply Current (Max) : 2 A


Features:

` OUTPUTS CURRENT CAPABILITY UP TO 0.5A
` CASCADABLE SPI CONTROL FOR OUTPUTS
` RESET FUNCTION WITH RESET SIGNAL OR UNDERVOLTAGE AT V<sub>DD</sub>
` PROGRAMMABLE INTRINSIC OUTPUT VOLTAGE CLAMPING AT TYP. 50V FOR INDUCTIVE SWITCHING
` OVERCURRENT SHUTDOWN WITH LATCHOFF FOR EVERY WRITE CYCLE (SFPD = LOW)
` INDEPENDENT THERMAL SHUTDOWN OF OUTPUTS (SOA PROTECTION)
` OUTPUT STATUS DATA AVAILABLE ON THE SPI USING 8-BIT I/O PROTOCOL UP TO 3.0MHZ
` LOW STANDBY CURRENT WITH RESET = LOW (TYP 35A @ VDD)
` OPEN LOAD DETECTION (OUTPUTS OFF)
` SINGLE V_DD LOGIC SUPPLY
` HIGH EMS IMMUNITY AND LOW EME (CONTROLLED OUTPUT SLOPES)
` FULL FUNCTIONALITY OF THE REMAINING DEVICE AT NEGATIVE VOLTAGE DROP ON OUTPUTS (-1,5V OR -3,0A)
` OUTPUT MODE PROGRAMMABLE FOR SUSTAINED CURRENT LIMIT OR SHUTDOWN

Specifications

For voltages and currents applied externally to the device. Exceeding limits may cause damage to the device.

Symbol	Parameter	Value	Unit
VDD	Supply voltage	-0.3 to 7	V
Inputs and data lines (CSB, SCLK, SI, Reset, SFPD, SO)
VIN	Voltage (CSB, SCLK, SI, Reset, SFPD)	-0.3 to 7
VSDO	Voltage (SO)	-0.3 to VDD+0.3
IIN	Protection diodes current 1) T 1ms	-20 to 20 1)	mA
Outputs (Out0 ... Out7)
VOUT Cont	Continuous output voltage	-1.5 to 45	V
ABSOLUTE MAXIMUM RATINGS (continued)
Symbol	Parameter	Value	Unit
VOUT Cont	Continuous output current	-3 to IOUT LIM	A
IOUT PEAK	Output current	-10 2) to 2	mJ
EOUTclamp	Output clamp energy 3)	50	A
IOUT LIM	Output current (self limit)	2	A

Note 1) All inputs are protected against ESD according to MIL 883C; tested with HBM C = 100pF, R = 1500W at ±2KV. It corresponds to a dissipated energy E £ 0.2mJ (data available upon request).
2) Transient pulses in accordance to DIN40839 part 1, 3 and ISO 7637 Part 1, 3.
3) Max. output clamp energy at Tj = 150°C, using single non-repetitive pulse of 500mA

Description

L9823 is a Octal Low-Side Driver Circuit, dedicated for automotive applications. Output voltage clamping is provided for flyback current recirculation, when inductive loads are driven. Chip Select and cascadable Serial 8-bit Interface for outputs control and diagnostic data transfer.