L9733 Octal configurable low/high side driver

The L9733 is a highly flexible monolithic, medium current, output driver that incorporates 8 outputs that can be used as either internal low or high-side drives in any combination.

Outputs 1-8 are self-configuring as high or low-side drives. Self-configuration allows a user to connect a high or low-side load to any of these outputs and the L9733 will drive them correctly as well as provide proper fault mode operation with no other needed inputs. In addition, outputs 6, 7 and 8 can be PWM controlled via a external pins (IN6-8).

This device is capable of switching variable load currents over the ambient range of -40 °C to +125 °C. The outputs are MOSFET drivers to minimize Vdd current requirements. For low-side configured outputs an internal zener clamp from the drain to gate with a breakdown of 50 V minimum will provide fast turn off of inductive loads. When a high-side configured output is commanded Off after having been commanded On, the source voltage will go to (VGND - 15 V).

An 16 bit SPI input is used to command the 8 output drivers either "On" or "Off", reducing the I/O port requirement of the microcontroller. Multiple L9733 can be daisy-chained. In addition the SPI output indicates latched fault conditions that may have occurred.

技术特性

Eight independently self configuring low/high drivers
Supply voltage from 4.5 V to 5.5 V
RON(max) = 0.7 Ω @ Tj= 25 °C,RON(max) = 1.2 Ω @Tj= 125 °C
Minimum current limit of each output 1 A
Output voltage clamping min. 40 V in low-side configuration
Output voltage clamping max. -14 V in high-side configuration
SPI interface for outputs control and for diagnosis data communication
Additional PWM inputs for 3 outputs
Independent thermal shutdown for all outputs open load, short to GND, short to Vb, overcurrent diagnostics in latched or unlatched mode for each channel
Internal charge pump without need of external capacitor
Controlled SR for reduced EMC

L9733 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
L9733XP	Active	2.859	1000	PowerSSO 28 7.5x10.3	Tube		L9733XP
L9733CN	Active	2.859	1000	PowerSSO 28 7.5x10.3	Tube		L9733CN
L9733CNTR	Active	2.859	1000	PowerSSO 28 7.5x10.3	Tape And Reel		L9733CNTR
L9733XPTR	Active	2.859	1000	PowerSSO 28 7.5x10.3	Tape And Reel		L9733XPTR

DATASHEET

描述	版本	大小
DS0092 : Octal self configuring low/high side driver	10	509KB

MARKETING BROCHURES

描述	版本	大小
BROCTAL0908 : Configurable multichannel drivers	1.0	853KB