16-Output Switch

Freescale Semiconductor Advance Information Document Number: MC33996 Rev. 6.0, 6/2007 16-Output Switch with SPI Control The 33996 is a 16-output low-side switch with a 24-bit serial input control. It is designed for a variety of applications including inductive, incandescent, and LED loads. The Serial Peripheral Interface (SPI) provides both input control and diagnostic readout. A Pulse Width Modulation (PWM) control input is provided for pulse width modulation of multiple outputs at the same duty cycle. A dedicated reset input provides the ability to clear all internal registers and turn all outputs off. The 33996 directly interfaces with micro controllers and is compatible with both 3.3 V and 5.0 V CMOS logic levels. The 33996, in effect, serves as a bus expander and buffer with fault management features that reduce the MCU’s fault management burden. Features • Designed to Operate 5.0 V < VPWR < 27 V • 24-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V Compatible • Outputs Are Current Limited (0.9 A to 2.5 A) to Drive Incandescent Lamps • Output Voltage Clamp of +50 V During Inductive Switching • On/Off Control of Open Load Detect Current (LED Application) • VPWR Standby Current < 10 µA • RDS(ON) of 0.55 Ω at 25°C Typical • Independent Overtemperature Protection Output Selectable for PWM Control www.DataSheet4U.com • • Output ON Short-to-VBAT and OFF Short-to-Ground /Open Detection • Pb-Free Packaging Designated by Suffix Code EK Vdd 3.3 V/5.0 V 33996 LOW SIDE SWITCH EK SUFFIX (PB-FREE) 98ARL10543D 32-PIN SOICW EXPOSED PAD ORDERING INFORMATION Device MC33996EK/R2 MCZ33996EK/R2 Temperature Range (TA) -40°C to 125°C Package 32 SOICW-EP VPWR VBAT 33996 SOPWR SCLK CS SI SO PWM RST VPWR OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 OUT9 OUT10 OUT11 OUT12 OUT13 OUT14 OUT15 GND VDD MCU SCLK CS MISO MOSI PWM RST Solenoid/Relay LED /8 Lamp Figure 1. 33996 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2007. All rights reserved. IINTERNAL BLOCK DIAGRAM IINTERNAL BLOCK DIAGRAM VPWR OUT0 VDD Overvoltage Detect OVD VDD RB SFPDB SFL CS SCLK SI SO CSI CSBI Voltage Regulator GE OT SF OF VDD Bias Gate Control 50 V PWM 10 µA RST CS 25 µA 10 µA Input Buffers 10 µA SI 10 µA SO SOPWR Serial D/O Line Driver To Gates 1 to 15 OUT1-15 SCLK Open Load Detect Enable VRef ILimit 50 µA Short and Open Load Detect Overtemperature Detect From Detectors 1 to 15 RS SPI Interface Logic GND (8) Figure 2. 33996 Simplified Internal Block Diagram 33996 2 Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS PIN CONNECTIONS OUT0 OUT1 SOPWR OUT2 OUT3 VPWR GND GND GND GND SCLK OUT4 OUT5 CS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OUT15 OUT14 PWM OUT13 OUT12 RST OUT6 OUT7 GND GND GND GND SO OUT11 OUT10 SI OUT9 OUT8 Figure 3. 33996 Pin Locations Table 1. Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 10. Pin 1, 2, 4, 5, 12, 13, 15 – 18, 20, 21, 28, 29, 31, 32 3 6 7– 10, 23 – 26 11 14 19 22 27 30 Pin Name OUT0 – OUT15 Formal Name Output 0 – Output 15 Open drain output pin. Definition SOPWR VPWR GND SCLK CS SI SO RST PWM SOPWR Supply Battery Input Ground System Clock Chip Select Serial Input Serial Output Reset PWM Control Power supply pin to the SO output driver. Battery supply input pin. Ground for logic, analog, and power output devices. System Clock for internal shift registers of the 33996. SPI control chip select input pin from the MCU to the 33996. Serial data input pin to the 33996. Serial data output pin. Active low reset input pin. PWM control input pin. Supports PWM on any combination of outputs. 33996 Analog Integrated Circuit Device Data Freescale Semiconductor 3 ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 2. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Rating ELECTRICAL RATINGS VPWR Supply Voltage (1) SO Output Driver Power Supply Voltage (1) SPI Interface Logic Input Voltage (CS, PWM, SI, SO, SCLK, RST) Output Drain Voltage Frequency of SPI Operation Output Clamp Energy (3) ESD Voltage (4) (2) (1) Symbol Value Unit VPWR SOPWR VIN VD -1.5 to 50 -0.3 to 7.0 -0.3 to 7.0 -0.3 to 45 6.0 50 V V V V MHz mJ V fSPI ECLAMP Human Body Model Machine Model THERMAL RATINGS Operating Temperature Ambient Junction Case Storage Temperature Power Dissipation (TA = 25°C) (5) VESD1 VESD2 ±2000 ±200 °C TA TJ TC TSTG PD TPPRT RθJA RθJL RθJC -40 to 125 -40 to 150 -40 to 125 -55 to 150 1.7 Note 7 °C W °C °C/W Peak Package Reflow Temperature During Reflow (6), (7) Thermal Resistance Junction-to-Ambient Junction- to-Lead (9) Junction-to-Flag Notes 1. 2. 3. 4. 5. 6. 7. (8) 75 8.0 1.2 Exceeding these limits may cause malfunction or permanent damage to the device. This parameter is guaranteed by design but not production tested. Maximum output clamp energy capability at 150°C junction temperature using single nonrepetitive pulse method. ESD data available upon request. ESD testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 Ω) and the Machine Model (CZAP = 200 pF, RZAP = 0 Ω). Maximum power dissipation with no heat sink used. Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. Tested per JEDEC test JESD52-2 (single-layer PWB). Tested per JEDEC test JESD51-8 (two-layer PWB). 8. 9. 33996 4 Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions 3.1 V ≤ SOPWR ≤ 5.5 V, 5.0 V ≤ VPWR ≤ 18 V, -40°C ≤ TA ≤ 125°C unless otherwise noted. Where applicable, typical values noted reflect the parameter ‘s approximate value with VPWR = 13 V, TA = 25°C. Characteristic POWER SUPPLY (VPWR) Supply Voltage Range Fully Operational Supply Current All Outputs ON, IOUT = 0.3 A Sleep State Supply Current at RST ≤ 0.8 and/or SOPWR ≤ 1.5 V Overvoltage Shutdown Overvoltage Shutdown Hysteresis VPWR Undervoltage Shutdown SPI Interface Logic Supply Voltage SPI Interface Logic Supply Current (RST Pin High) SPI Interface Logic Supply Current (RST Pin Low) VPWR (FO) IPWR (ON) IPWR (SS) VOV VOV (HYS) VPWR (UV) SOPWR ISOPWR(RSTH) ISOPWR(RSTL) V 5.0 – _ 27.5 0.6 – 3.1 100 -10 1.5 – 4.0 1.0 31.5 1.4 3.2 – – – 2.5 27 mA 8.0 10 35 2.3 4.0 5.5 500 10 3.0 µA V V V V µA µA V Symbol Min Typ Max Unit SPI Interface Logic Supply Undervoltage Lockout Threshold SOPWR (UNVOL) POWER OUTPUT (VPWR) Drain-to-Source ON Resistance (IOUT = 0.35 A, VPWR = 13 V) TJ = 125°C TJ = 25°C TJ = -40°C Output Self-Limiting Current Outputs Programmed ON Output Fault Detect Threshold (10) Outputs Programmed OFF Output Off Open Load Detect Current (11) Outputs Programmed OFF (VPWR = 5.0 V, 13 V, 18 V) Output Clamp Voltage IOUT = 20 ≤ mA Output Leakage Current SOPWR ≤ 1.5 V, VOUT 1-16 = 18.0 V Overtemperature Shutdown (Outputs OFF) (12) Overtemperature Shutdown Hysteresis (12) TLIM TLIM (hys) IOUT(lkg) VCL I OCO VOUTth (F) I OUT (lim) RDS(ON) Ω – – – 0.75 0.55 0.45 1.1 – – A 0.9 1.2 2.5 V 2.5 3.0 3.5 µA 25 50 100 V 45 50 55 µA -10 155 5.0 2.0 165 10 10 180 20 °C °C Notes 10. Output Fault Detect Thresholds with outputs programmed OFF. Output Fault Detect Thresholds are the same for output open and shorts. 11. Output OFF Open Load Detect Current is the current required to flow through the load for the purpose of detecting the existence of an open load condition when the specific output is commanded to be OFF. 12. This parameter is guaranteed by design; however, it is not production tested. 33996 Analog Integrated Circuit Device Data Freescale Semiconductor 5 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions 3.1 V ≤ SOPWR ≤ 5.5 V, 5.0 V ≤ VPWR ≤ 18 V, -40°C ≤ TA ≤ 125°C unless otherwise noted. Where applicable, typical values noted reflect the parameter ‘s approximate value with VPWR = 13 V, TA = 25°C. Characteristic DIGITAL INTERFACE (RST, SI, CS, SCLK, SO, PWM) Input Logic Voltage Thresholds (13) Input Logic Voltage Thresholds for RST SI Pull-down Current SI = 5.0 V CS Pull-up Current CS = 0 V Symbol Min Typ Max Unit VINLOGIC VINRST I SI 0.8 0.8 – – 2.2 2.2 V V µA 2.0 I CS -30 I SCLK 2.0 I RST 5.0 I PWM VSOH SOPWR - 0.4 VSOL – CIN – 2.0 10 30 µA -10 -2.0 µA SCLK Pull-down Current SCLK = 5.0 V RST Pull-down Current RST = 5.0 V 10 30 µA 25 10 50 30 µA V PWM Pull-down Current SO High State Output Voltage ISO-high = -1.6 mA SO Low State Output Voltage ISO-low = 1.6 mA Input Capacitance on SCLK, SI, Tri-State SO, RST (14) SOPWR - 0.2 – V – – 0.4 20 pF Notes 13. Upper and lower logic threshold voltage levels apply to SI, CS, SCLK, and PWM. 14. This parameter is guaranteed by design; however, it is not production tested. 33996 6 Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. DYNAMIC ELECTRICAL CHAR