SGS Thomson Microelectronics L6370L, L6370D Datasheet

L6370

2.5A HIGH-SIDE DRIVER

INDUSTRIALINTELLIGENT POWER SWITCH

2.5A OUTPUT CURRENT

9.5V TO35V SUPPLY VOLTAGE RANGE
INTERNALCURRENT LIMITING
THERMALSHUTDOWN
OPENGROUNDPROTECTION
INTERNALNEGATIVE VOLTAGE CLAMPING

TOV

- 50VFOR FAST DEMAGNETIZATION

S

DIFFERENTIAL INPUTS WITH LARGE COM­MON MODE RANGE AND THRESHOLD
HYSTERESIS

UNDERVOLTAGELOCKOUTWITHHYST ERESIS
OPENLOAD DETECTION
TWODIAGNOSTICOUTPUT S
OUTPUTSTATUS LEDDRIVER
NON DISSIPATIVE SHORT CIRCUIT PRO-

TECTION
PROTECTIONAGAINST AND SURGE TRAN-

SIENT (IEC 801-5)
IMMUNITY AGAINST BURST TRANSIENT

(IEC801-4)
ESD PROTECTION (HUMAN BODY MODEL

2KV)

±

BLOCK DIAGRAM

MULTIPOWER BCD TECHNOLOGY

MULTIWATT11(in line)

ORDERINGNUMBERS: L6370L (MULTIWATT11)

PowerSO20

L6370D (PowerSO20)

DESCRIPTION

The L6370 is a monolithic Intelligent Power
Switch in Multipower BCD Technology, for driving
inductive or resistive loads. An internal Clamping
Diode enables the fast demagnetizationof induc­tive loads. Diagnostic for CPU feedback and ex­tensive use of electricalprotections make this de­vice extremely rugged and specially suitable for
industrialautomation applications.

March 1997

IN+

IN-

ON-DELAY

INPUT

1.4V

OSC

THERMAL

PROTECTION

+

-

NON DISSIPATIVE

SHORT CIRCUIT

OUTSTATUS

3mA

OUTPUT STATUS

UNDER

VOLTAGE

CHARGE

PUMP

DRIVER

CURRENT

LIMITATION

OPEN LOAD
DETECTION

DIAGNOSTIC

D95IN208D

V

S

OUT

RSC

DIAG1

DIAG2

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L6370

PIN CONNECTION (Topview)

11
10

9
8
7
6
5
4
3
2
1

D95IN209A

OUTPUT
SUPPLY VOLTAGE
OUTPUT
RSC
ON-DELAY
GND
OUTPUT STATUS
INPUT ­INPUT +
DIAGNOSTIC 2
DIAGNOSTIC 1

GND
OUTPUT
OUTPUT

ON-DELAY

SUPPLY VOLTAGE

N.C.
OUTPUT
OUTPUT N.C.

GND GND

2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

GND1
OUTPUT STATUS
INPUT ­INPUT +
N.C.SUPPLY VOLTAGE
DIAGNOSTIC 2
DIAGNOSTIC 1
RSC

D95IN210B

Note: Outputpins must be must be connected externally to the package touse all leadsfor the outputcurrent(Pin9 and11 for Multiwatt

package, Pin 2, 3, 8 and 9 for PowerSO20 package).

ABSOLUTE MAXIMUM RATINGS (Pinnumberingreferredto Multiwatt package)

Symbol Parameter Value Unit

V

V

S–VO

V

I

V
V

I
P
T
T

E

S

od

od

I

O

tot
op
stg

Supply Voltage (Pin 10) (TW< 10ms) 50 V
Supplyto Output Differential Voltage.Seealso VCl(Pins10 - 9) internally limited V
Externally Forced Voltage (Pin7) -0.3 to 7 V
Externally Forced Voltage (Pin7) +1 mA
Input Voltage (Pins 3/4) -10 to VS +10 V

i

Differential Input Voltage (Pins 3 - 4) 43 V

i

Input Current (Pins 3/4) 20 mA

i

Output Current (Pin 9). See also ISC (Pin 9) internally limited A
Power Dissipation.See also THERMAL CHARACTERISTICS. internally limited W
Operating Temperature Range (T

) -25 to +85 °C

amb

Storage Temperature -55 to 150 °C
Energy Induct.Load TJ=85°C1J

I

THERMAL DATA

Symbol Description Multiwatt PowerSO20 Unit

Thermal Resistance Junction-case Max. 1.5 1.5 °C/W
Thermal Resistance Junction-ambient Max. 35 – °C/W

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R

th j-case

R

th j-amb

PIN FUNCTION (pinnumbering referred to Multiwattpackage)

N. Name Function

1 DIAG1 DIAGNOSTIC 1 output. This open drain reports the IC workingconditions. (See

Diagnostic truth table)

2 DIAG1 DIAGNOSTIC 2 output. This open drain reports the IC workingconditions. (See

Diagnostic truth table)
3 IN - Comparator non inverting input
4 IN+ Comparator inverting input
5 OUTSTATUS This current source output is capable of drivinga LED to signal the status of the output

pin. The pin is active (source current) when the output pin is considered high (See fig 1)
6 GND Ground
7 ON-DELAY Programmable ON time interval duration during short circuit operation
8 RSC Current limitation setting.
9 OUTPUT High Side output with built-in current limitation

10 V

S

Supply Volatge Input, the valueof the supplyvoltage is monitored to detect under voltage

condition

11 OUTPUT High Side output with built-in current limitation

ELECTRICALCHARACTERISTICS (VS= 24V; TJ= –25 to +125°C, unless otherwise specified)

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

smin

V

s

I

q

V

sth1

V

sth2

V

shys

I

sc

V

don

I

oslk

V

ol

V

cl

I

old

V

id

I

ib

V

ith

V

iths

R

id

I

ilk

Supply Voltage for Valid

I

> 0.5mA ; V

diag

= 1.5V 4 35 V

dg1

Diagnostics
Supply Voltage (operative) 9.5 24 35 V
Quiescent Current

I

out=Ios

=0

V
V

il
ih

0.8
3

1.4
5

Undervoltage Threshold 1 (See fig. 1), Tamb = 0 to +85°C 8.5 9 9.5 V
Undervoltage Threshold 2 8 8.5 9 V
Supply Voltage Hysteresis 300 500 700 mV
Short Circuit Current VS= 9.5 to 35V; RL=2

Output Voltage Drop I

5kΩ <R
0<R

out

I

out

< 30kΩ

SC

<5kΩ 2.6 3.2 4 A

SC

= 2.0A Tj=25°C

T

= 125°C

j

= 2.5A Tj=25°C

T

= 125°C

j

Ω

(kΩ)A

15/R

SC

200
320
250
400

280
440
350

550
Output Leakage Current Vi=Vil;Vo= 0V 500 µA
Low State Out Voltage Vi=Vil;RL=∞ 0.8 1.5 V
Internal Voltage Clamp (VS-VO)IO=1A

48 53 58 V

Single Pulsed: Tp =300µs
Open Load Detection Current Vi=Vih;T
Common Mode Input Voltage

VS= 18 to 35V –7 15 V

= 0 to +85°C136mA

amb

Range (Operative)
Input Bias Current Vi= –7 to 15V; –In = 0V –250 250 µA
Input Threshold Voltage V+In > V–In 0.8 1.4 2 V
Input Threshold Hysteresis

V+In > V–In 50 400 mV
Voltage

Diff. Input Resistance 0 < +In < +16V; –In= 0V

–7 < +In < 0V ; –In = 0V
Input Offset Current V+In = V–In +Ii

0V < V

<5.5V –Ii

i

–In = GND +Ii

0V < V+In <5.5V –Ii –250

+In = GND +Ii

0V < V–In <5.5V –Ii

–20
–75 –25

–100

–50

400
150

+10

–125

–30
–15

+20 µA

+50

L6370

mA
mA

mV
mV
mV
mV

K

Ω

KΩ

A

µ

A

µ
µA

µA
µA

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