33880

Features:

• Designed to Operate 5.5 V < VPWR < 24.5 V
• 8-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V Compatible
• Outputs Are Current Limited (0.8 A to 2.0 A) to Drive Incandescent Lamps
• Output Voltage Clamp Is +45 V (Typical) (Low-Side Drive) and -20 V (Typical) (High-Side Drive) During Inductive Switching
• Internal Reverse Battery Protection on VPWR
• Loss of Ground or Supply Will Not Energize Loads or Damage IC
• Maximum 5.0 µA IPWR Standby Current at 13 V VPWR up to 95
• RDS(ON) of 0.55 Ω at 25 Typical
• Short Circuit Detect and Current Limit with Automatic Retry
• Independent Overtemperature Protection
• 32-Pin SOIC Has Pins 8, 9, 24, and 25 Grounded for Thermal Performance


Pinout




Specifications

Rating	Symbol	Value	Unit
VDD Supply Voltage (Note 1)	VDD	-0.3 to 7.0	VDC
CS, DI, DO, SCLK, IN5, IN6, and EN (Note 1)		-0.3 to 7.0	VDC
VPWR Supply Voltage (Note 1)	VPWR	-16 to 50	VDC
Drain 18 (Note 2) 5.0 mA IOUT 0.3 A		-18 to 40	VDC
Source 18 (Note 3) 5.0 mA IOUT 0.3 A		-28 to 40	VDC
Output Voltage Clamp Low-Side Drive (Note 4)	VOC	40 to 55	VDC
Output Voltage Clamp High-Side Drive (Note 4)	VOC	-15 to -25	VDC
Output Clamp Energy (Note 5)	ECLAMP	50	mJ
ESD Voltage Human Body Model (Note 6) Machine Model (Note 7)	VESD1 VESD2	±2000 ±200	V
Storage Temperature	TSTG	-55 to 150
Operating Case Temperature	TC	-40 to 125
Operating Junction Temperature	TJ	-40 to 150
Maximum Junction Temperature	-	-40 to 150
Power Dissipation (TA = 25°C) (Note 8) 28 SOIC, Case 751F-05 32 SOIC, Case 1324-02	PD	1.3 1.7	W
Thermal Resistance, Junction-to-Ambient, 28 SOIC, Case 751F-05	RJA	94	/W
Thermal Resistance, Junction-to-Ambient, 32 SOIC, Case 1324-02 Thermal Resistance, Junction-to-Thermal Ground Leads, 32 SOIC, Case 1324-02	RJA RJL	70 18	/W

Description

The 33880 device is an eight-output hardware configurable high-side/lowside switch with 8-bit serial input control. Two of the outputs may be controlled directly via microprocessor for PWM applications. The 33880 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power MOSFETs. The 33880 controls various inductive or incandescent loads by directly interfacing with a microcontroller. The circuit's innovative monitoring and protection features include very low standby currents, cascade fault reporting, output-specific diagnostics, and independent shutdown of output.