MOTOROLA 33996 Technical data

T

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MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Preliminary Information

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 microcontrollers 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.

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Features

• Designed to Operate 5.0 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)

•V

•R

• Independent Overtemperature Protection

• Output Selectable for PWM Control

• Output ON Short-to-V

• 32-Pin Exposed Pad Package for Thermal Performance

• Pb-Free Packaging Designated by Suffix Code EK

Standby Current < 10 µA

PWR

of 0.55 Ω at 25°C Typical

DS(ON)

BAT

cale Semiconductor,

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V

PWR

and OFF Short-to-Ground/Open Detection

MCU

< 27 V

Simplified Application Diagram

33996 Simplified Application Diagram

3.3 V/5.0 V

VDD VPWR

33996

SOPWR

SCLKSCLK CSCS SIMISO SOMOSI PWMPWM RSTRST

OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8

OUT9 OUT10 OUT11 OUT12 OUT13 OUT14 OUT15

GND

PC33996EK/R2 -40°C to 125°C 32 SOICW-EP

V

PWR

Document order number: MC33996

Rev 1.0, 01/2004

33996

DUAL OCTAL SERIAL SWITCH

WITH SERIAL PERIPHERAL

INTERFACE I/O

EK (Pb-FREE) SUFFIX

32-LEAD SOICW EXPOSED PAD

ORDERING INFORMATION

Device

Solenoid/Relay

LED

Lamp

CASE 1454-01

Temperature

Range (T

V

BA

)

A

Package

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

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VPWR

V

DD

PWM

30

RST

27

CS

14

SCLK

11

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19

SO

22

SOPWR

SI

3

10 µA

25 µA

10 µA

Input

Buffers

10 µA

Serial D/O

Line Driver

Overvoltage

Detect

OVD

V

DD

RB SFPDB

SFL SCLK CSB

SI SO CSI

CSBI

SPI

Interface

Logic

Figure 1. 33996 Simplified Internal Block Diagram

cale Semiconductor,

Open

Load

Detect

Enable

6

Voltage

Regulator

GE

OT SF OF

V

DD

Bias

Gate

Control

V

Ref

50 µA

Short and

Open

Load

Detect

Overtemperature

Detect

From Detectors 1to 15

50 V

To Gates 1to15

I

Limit

OUT0 1

OUT1–OUT15: 2, 4, 5, 12, 13, 15, 16, 17, 18, 20, 21, 28, 29, 31, 32

R

S

GND Pins: 7–10 23– 26

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33996 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 2

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OUT0 OUT1

SOPWR

OUT2 OUT3

VPWR

GND GND GND GND

SCLK OUT4 OUT5

CS

OUT6 OUT7

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PIN FUNCTION DESCRIPTION

Pin Pin Name Formal Name Definition

1, 2, 4, 5, 12, 13,

15–18, 20, 21,

28, 29, 31, 32

3 SOPWR

6 VPWR

7–10, 23–26 GND

11 SCLK

14

19 SI

22 SO

27

30 PWM

OUT0–OUT15

CS

RST

Output 0– Output 15 Open drain output pin.

SO

PWR

Battery Input Battery supply input pin.

System Clock System Clock for internal shift registers of the 33996.

Chip Select SPI control chip select input pin from the MCU to the 33996.

Serial Input Serial data input pin to the 33996.

Serial Output Serial data output pin.

PWM Control PWM control input pin. Supports PWM on any combination of outputs.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Supply Pin Power supply pin to the SO output driver.

Ground Ground for logic, analog, and power output devices.

Reset Active low reset input pin.

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

cale Semiconductor,

OUT15 OUT14 PWM OUT13 OUT12

RST

GND GND GND GND SO OUT11 OUT10 SI OUT9 OUT8

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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33996

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MAXIMUM RATINGS

All voltages are with respect to ground unless otherwise noted.

Rating Symbol Value Unit

VPWR Supply Voltage (Note 1) V

SO Output Driver Power Supply Voltage (Note 1) SO

SPI Interface Logic Input Voltage (

Output Drain Voltage

Frequency of SPI Operation (Note 2)

Output Clamp Energy (Note 3) E

ESD Voltage (Note 4)

Human Body Model (Note 5)

Machine Model (Note 6)

CS, PWM, SI, SO, SCLK, RST) (Note 1)

PWR

V

f

SPI

CLAMP

V

ESD1

V

ESD2

-1.5 to 50 V

-0.3 to 7.0 V

IN

D

-0.3 to 7.0 V

-0.3 to 45 V

6.0 MHz

50 mJ

V

±2000

±200

Storage Temperature T

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Operating Case Temperature T

Operating Junction Temperature T

Power Dissipation (T

Lead Soldering Temperature (Note 8) T

Thermal Resistance

Junction-to-Ambient (Note 9)

Junction- to-Lead (Note 10)

Junction-to-Flag

Notes

1. Exceeding these limits may cause malfunction or permanent damage to the device.

2. This parameter is guaranteed by design but not production tested.

3. Maximum output clamp energy capability at 150°C junction temperature using single nonrepetitive pulse method.

4. ESD data available upon request.

5. ESD1 testing is performed in accordance with the Human Body Model (C

6. ESD2 testing is performed in accordance with the Machine Model (C

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7. Maximum power dissipation with no heat sink used.

8. Lead 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.

9. Tested per JEDEC test JESD52-2 (single-layer PWB).

10. Tested per JEDEC test JESD51-8 (two-layer PWB).

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= 25°C) (Note 7) P

A

ZAP

STG

C

J

D

SOLDER

R

JA

θ

R

JL

θ

R

JC

θ

= 100 pF, R

ZAP

= 200 pF, R

ZAP

= 1500 Ω).

ZAP

= 0 Ω).

-50 to 150 °C

-40 to 125 °C

-40 to 150 °C

1.5 W

260 °C

75

8.0

1.2

°C/W

33996 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 4

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STATIC ELECTRICAL CHARACTERISTICS

Characteristics noted under conditions 3.1 V ≤ SO

≤ 5.5 V, 5.0 V ≤ V

PWR

≤ 18 V, -40°C ≤ TC ≤ 125°C unless otherwise noted.

PWR

Where applicable, typical values noted reflect the parameter ‘s approximate value with V

Characteristic Symbol Min Typ Max Unit

POWER SUPPLY

Supply Voltage Range

Fully Operational

Supply Current

All Outputs ON, I

Sleep State Supply Current at

≤ 0.5 V

SO

PWR

Overvoltage Shutdown V

Overvoltage Shutdown Hysteresis V

Undervoltage Shutdown V

VPWR

SPI Interface Logic Supply Voltage SO

SPI Interface Logic Supply Current (

SPI Interface Logic Supply Undervoltage Lockout Threshold SO

OUT

= 0.3 A

RST ≤ 0.2 SO

RST Pin High)

RST Pin Low)

PWR

and/or

V

PWR(FO)

I

PWR(ON)

I

PWR(SS)

OV

OV(

HYS

PWR(UV)

PWR

I

SOPWR(RSTH)

I

SOPWR(RSTL)

PWR(

UNVOL

5.0 – 27

–4.08.0

-10 1.0 10 µA

27.5 31.5 35 V

)

0.8 1.4 2.3 V

–3.23.5V

3.1–5.5V

100 – 500 µA

-10 – 10 µA

2.0 2.5 3.0 V

POWER OUTPUT

Drain-to-Source ON Resistance (I

= 125°C

T

J

T

= 25°C

J

T

= -40°C

J

Output Self-Limiting Current

Outputs Programmed ON

Output Fault Detect Threshold (Note 11)

Outputs Programmed OFF

Output Off Open Load Detect Current (Note 12)

Outputs Programmed OFF (V

Output Clamp Voltage

I

= 20 ≤ mA

OUT

Output Leakage Current

SO

≤ 2.0 V

PWR

= 0.35 A, V

OUT

= 5.0 V)

PWR

= 13 V, 18 V)

PWR

= 13 V)

R

DS(ON)

I

OUT(

lim

V

OUTth(F)

I

OCO(5)

I

OCO(13,18)

V

CL

I

OUT(

lkg

–

)

0.9 1.2 2.5

2.5 3.0 3.5

25

30

45 50 55

)

-10 2.0 10

= 13 V, TA = 25°C.

PWR

0.75

0.55

0.45

50

1.2

100

V

mA

Ω

A

V

µA

V

µA

155 165 180 °C

5.0 10 20 °C

T

LIM(

LIM

hys

)

Overtemperature Shutdown (Outputs OFF) (Note 13)

Overtemperature Shutdown Hysteresis (Note 13)

Notes

11. Output Fault Detect Thresholds with outputs programmed OFF. Output Fault Detect Thresholds are the same for output open and shorts.

12. 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.

13. This parameter is guaranteed by design but not production tested.

MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 33996

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