SGS Thomson Microelectronics L9230 Datasheet

■ OPERATING SU PPLY VOLTAGE 5V TO 28V

■ TYPICAL R

= 150 mΩ FOR EACH

DSon

OUTPUT TRANSISTOR (AT 25°C)

■ CONTINOUS DC LOAD CURRENT 5A

(T

< 100 °C)

case

■

OUTPUT CURRENT LIMITATION AT TYP. 6A

■ SHORT CIRCUIT SHUT DOWN FOR OUTPUT

CURRENTS OVER 8A

■ LOGIC- INPUTS TTL/CMOS-COMPATIBLE

■ OPERATING-FREQUENCY UP TO 30 kHz

■ OVER TEMPERATURE PROTECTION

■ SHORT CIRCUIT PROTECTION

■ UNDERVOLTAGE DISABLE FUNCTION

■ DIAGNOSTIC BY SPI OR STATUS-FLAG

(CONFIGURABLE)

■ ENABLE AND DISABLE INPUT

■ SO20 POWER PACKAGE

DESCRIPTION

The L9230 is an SPI controlled H-Bridge, designed
for the control of DC and stepper motors in safety crit­ical applications and under extreme environmental
conditions.

L9230

SPI CONTROLLED H-BRIDGE

PRELIMINARY DATA

PowerSO20 BARE-DIE

ORDERING NUMBERS:

L9230 L9230-DIE1

The H-Bridge is protected against over temperature
and short circuits and has an under voltage lockout
for all the supply voltages ”V
ply). All malfunc tions cause the output stages to go
tristate.

The H-Bridge contains integrated free-wheel diodes.
In case of free-wheeling conditi on, the lowside t ran­sistor is switched on in parallel of its diode to reduce
the current injected into the substrate.

Switching in parallel is only all owed, if the voltage­level of the according output-stage is below the
ground-level.In this case it must be ensured, that the
upper transistor is switched off.

” (Main DC power sup-

S

BLOCK DIAGRAM

V

S

1

2

OVER

INTERNAL 5V

SUPPLY

OVERCURRENT

HIGH-SIDE

OVERCURRENT

LOW-SIDE

GND

OUT1

OUT2

D01AT470A

UNDERVOLTAGE

V

S

IN1
IN2

DI

EN

LOGIC

DMS

SF/SCK

SS

SI

SO

GATE CONTROL

GATE CONTROL

TEMPERATURE

MAXIMUM
CURRENT

LIMITATION

March 2003

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

1/25

L9230

PIN FUNCTION

N° Pin Description

1 GND Ground
2 SCK/SF SPI-Clock/Status-flag
3 IN1 Input 1
4V
5 V
6 OU1 Output 1
7 OU1 Output 1
8 SO serial out
9 SI serial in

10 GND Ground

11 GND Ground
12 DMS Diagnostic-Mode selection (+ Supply Voltage for SPI-Interface)
13 EN Enable
14 OU2 Output 2
15 OU2 Output 2
16 V
17 SS Slave select
18 DI Disable
19 IN2 Input 2
20 GND Ground

Supply voltage

S

Supply voltage

S

Supply voltage

S

PIN CONNECTION

(Top view)

GND

SCK

IN1

V

V
OU1
OU1

SO

GND 10

SI

1
2
3

S
S

4
5
6
7
8
9

D01AT471

20
19
18
17
16
15
14
13
12
11

GND
IN2
DI
SS
V

S

OU2
OU2
EN
DMS
GND

2/25

L9230

ABSOLUTE MAXIMUM RATINGS

The integrated circuit must not be destroyed by use at the limit values.
Each limit value can be used, as long as no other limit is violated.
Voltage reference point: All values are, if not otherwise stated, relative to ground.
Direction of current flow: Current flow into a pin is positive.
Rise-, fall- and delaytimes: If not otherwise stated, all rise times are between 10% and 90%, fall times

between 90% and 10% and delay times at 50% of the relevant steps.

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

V

V

THERMAL DATA

Symbol Parameter Test Condition Min. Typ. Max. Unit

T

T

R

th j-case

T

Supply voltage static destruction proof -1 40 V

S

dynamic destruction proof t <0.5s

-2 40 V

(single pulse, Tj < 85°C)

LI

Logic inputs

-0.5 7 V

IN1, IN2, DI, EN, SS, SI, SCK,DMS

I

Logic inputs

LI

IN1, IN2, DI, EN, SS, SI, SCK,DMS
Logic outputs SF, SO R ≥ 10kΩ -0.5 7 V

LO

Junction temperature

T

j

-40 +150

dynamic t < 1 s

Storage temperature -55 +125 °C

stg

Ambient temperature -40 +125 °C

amb

Thermal resistance junction to

(2)

case
Thermal Shutdown Junction

j_sd

165 175 °C

Temperature Threshold

-20 mA

+175

3 °C/W

°C
°C

ELECTRICAL CHARACTERISTCS

( Tj = -40 to +150°C; VS = 5 to 28V)

Symbol Parameter Test Condition Min. Typ. Max. Unit

Power Supply

V

Supply Voltage Static Condition 5 28 V

S

Dynamic Condition (t < 500ms) 40 V

Undervoltage Shutdow n

(at least down to 2.5V)

(1)

4.7 5 V

Switch OFF voltage 4.5 5 V
Switch ON voltage 4.7 5 V
Hysteresis 200 mV

I

Supply current f = 0 kHz, IO = 0 A

S

f = 20kHz, IO = 0 A

Note: 1. For supply volt ag es d own to 2.5 V t he ou tp ut s tage s ar e in trist ate cond itio n and t he st atus flag is set to lo w. B e low 2 .5V the

device op erates in unde fined condition

2. Guaranteed by d esign and package characterization

13
30

mA
mA

3/25

L9230

ELECTRICAL CHARACTERISTCS

( Tj = -40 to +150°C; VS = 5 to 28V)

(continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

Logic inputs

V

Logic Input Voltage

I

1 1.5 2 V

IN1, IN2, DI, EN
Logic Input Current

I

I

VI ≤ 1V -200 -125 µA

IN1, IN2, DI

I

Input Current EN V

EN

Detection Time EN, DI 3 4 µs

t

dt

≥ 2V 75 100 µA

IEN

Power Outputs (OUT1, OUT2)

R

Switch on Resistance LS R

S

Switch on Resistance HS R

, VS > 5 V 150 250 mΩ

OUT-Vs

OUT-GND, VS

> 5 V 150 250 mΩ

Current Limitation Peak value controlled

inductive load L = 0,8 to 5 mH
resistive load R = 0,8 to 1.8 Ω

|I

OU|max

|IOU|

t

a/tb

Switch-off Current -40 °C < Tj < 165 °C

max

t

a

t

b

Switch-off time
Blanking time
Tracking

(2)

(2)

(2)

Tj < 175 °C

5.5 6

7.7 A

2.5

12 17 22 µs

811.515µs

1.4 1.5 1.6

A

|

|I

OUK

∆|I

Short circuit detection curren t

|

OUK

Short Circuit Current Trecking

t Reactivation time after internal

(2)

(2)

(3 )

I

L

V

FD

t

rr

V

SFHigh

|I

ou| max

I

SF

I

SF

shut down

Leakage Current Output stage switched off 1 mA
Free-wheel diode forward voltage IO = 3A, VS = 0V 2 V
Free-wheel diode reverse

recovery time
Output„high“ (SF not set)

Switch OFF Current Tj = -40 to 165°C 6 A

Output„high“ (SF not set)
Output„low“ (SF set)

(*)

(2)

(1)

see figure 1 5.5 11 A

(1)

1600 mA

Overcurrent- or overtemperature
shut down to reactivation of the
output stage

VS = 5V, R

= 27KΩ 4.1 V

Pull_up

Tj = < 175°C 2.5 A
V

= 5V 20 µA

SF

V

= 1V 300 µA

SF

V

= 0.5V 100 µA

SF

V

= 0.8V 500 µA

SF

1ms

100 ns

4/25

L9230

ELECTRICAL CHARACTERISTCS

( Tj = -40 to +150°C; VS = 5 to 28V)

(continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

Timing

f PWM Frequency min. operating time 10µs 2 30 kHz

f

Switching Frequency during

S

5 30 kHz

current limitation

t

don

t

doff

t

Output ON-delay

IN1 --> OUT1 or IN2 --> OUT2

35µs

Output OFF-delay 3 5 µs

, t

Output rise-, fall Time

r

f

OUT1H--> OUT1L, OUT2H--> OUT2L,

0.2 0.4 1 µs
IOUT = 3 A
OUT1L--> OUT1H, OUT2L--> OUT2H

t

ddis

t

Disable Delay Time DIn --> OUTn, En --> OUTn 3 4 µs
Power on Delay Time VS = on --> output stage active 15 ms

dp

Delay time for fault detection 5 15 µs

|∆I| Effect of reverse current at power

supply

(*) For low er pull up resis tances than 27kΩ the specified value of xxxV (minimum) is guaranteed by design
Note: 1. In case of SC OUTx to Vs the switch off current is always higher than the start value of current regulation (∆|I

2. Guaranteed by design

3. Value is tested down to 6V. For supply voltage below 6V on i ncreased current can be fed bac k in the device via a pro tection path

4,5V < V

- IVs < 3A

∆

I for ISI, ISO, ISS, I

DMS

< 5,5V

SCK

, I

, I

, IEN,I

IN1

IN2

DI

100 µA

| = |I

OUK

OUK

| - |I

OUmax

|

5/25

L9230

Figure 1. Out put del a y t ime

IN

n

OUT

n

Figure 2. Dis abl e del a y tim e

DI

n

OUT

n

50%

t

don

50%

t

ddis

10%

90%

Z

D01AT473

50%

t

doff

10%

D01AT472

Figure 3. Out put sw i tchi ng time

OUT

n

6/25

90% 90%

10%

t

f

t

r

D01AT474

Figure 4.

L9230

LOAD

CURRENT

>8A

typ 6.6A

CONTROL

SIGNAL

STATUS

FLAG

DETAIL A

6.6A

CURRENT LIMITATION

A

t

a

OVERCURRENT

DETECTION

t

b

OVERCURRENT

ta = SWITCH_OFF TIME IN CURRENT LIMITATION
tb = CURRENT LIMITATION BLANKING TIME

D01AT475

Figure 5.

Temperature-depending current-limitation

Maximum rating for junction temperature for < 1s 175°C
Overtemperature switch-off > 175°C
Switch-off current in case of current limitation 6,6A ± 1,1A Tj < 165°C
For 165°C < Tj < 175°C the maximum current decreases from Imax. = 6,6A ± 1,1A to Imax. = 2,5A ± 1,1A.

Tolerance-range

Imax

6.6A

2.5A

of temperat u re -depen de nt
current - reduc tion

165°C

175°C

Range of
Overtemperatur e
switch-off

Tj

7/25

L9230

ELECTRICAL CHARACTERISTICS

(continued)

SPI INTERFACE

The timing of L9230 is defined as follows:

- The change at output (SO) is forced by the rising edge of the SCK signal.

- The input signal (SI) is taken over on the falling edge of the SCK signal.
= active without any clocks at SCK is not allowed

- SS

- The data received during a writing access is taken over into the internal registers on the rising edge of the SS

signal, if exactly 16 SPI clocks have been counted duri ng SS

= active.

Figure 6.

910

SS

SCK

2

11

1

4

3

8

12

7

SO

SI

5

MSB IN

tristate

6

Bit (n-3)

Bit (n-3)Bit (n-2)

Bit (n-4)...1

Bit (n-4)...1

Bit 0; LSB

LSB IN

n = 16

ELECTRICAL CHARACTERISTCS

( continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

Input SCK

V

SCKL

V

SCKH

∆V

C

SCK

(SPI clock input 4.5V < DMS < 5.5V)

Low Level 1 V
High Level 2 V

Hysteresis 0.1 0.4 V

SCK

Input Capacity 10 pF

8/25