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L6370L

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
February 2007 Rev 6 1/20
20
L6370
2.5A high-side driver industrial intelligent power switch
Features
■ 2.5A output current
■ 9.5V to 35V supply voltage range
■ Internal current limiting
■ Thermal shutdown
■ Open ground protection
■ Internal negative voltage clamping to V
S
- 50V
for fast demagnetization
■ Differential inputs with large common mode
range and threshold hysteresis
■ Undervoltage lockout with hysteresis
■ Open load detection
■ Two diagnostic outputs
■ Output status led driver
■ Non dissipative short circuit protection
■ Protection against and surge transient
(IEC 61000-4-5)
■ Immunity against burst transient
(IEC 61000-4-4)
■ ESD protection (human body model ±2kV)
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 demagnetization of
inductive loads. Diagnostic for CPU feedback and
extensive use of electrical protections make this
device extremely rugged and specially suitable for
industrial automation applications..
MULTIWATT11
(In line)
PowerSO-20
Table 1. Device summary
Part number Op. Temp. range, °CPackage Packaging
L6370L -25 to +85 MULTIWATT11 Tube
L6370D -25 to +85 PowerSO-20 Tube
L6370D013TR -25 to +85 PowerSO-20 Tape & Reel
www.st.com
Contents L6370
2/20
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Diagnostic truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Input section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Diagnostic logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Short circuit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Overtemperature protection (OVT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6 Undervoltage protection (UV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7 Demagnetization of inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Multiwatt11 (in-line) mechanical data & package dimensions . . . . . . . . . 14
4.2 PowerSO-20 mechanical data & package dimensions . . . . . . . . . . . . . . . 15
4.3 PowerSO-20 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
L6370 Block diagram and pin description
3/20
1 Block diagram and pin description
Figure 1. Block diagram
Figure 2. Pin connection (top view)
UNDER
VOLTAGE
CHARGE
PUMP
DRIVER
NON DISSIPATIVE
SHORT CIRCUIT
CURRENT
LIMITATION
OPEN LOAD
DETECTION
OUTSTATUS
DIAGNOSTIC
THERMAL
PROTECTION
OSC
+
-
1.4V
INPUT
IN+
IN-
ON-DELAY
OUTPUT STATUS
3mA
DIAG2
DIAG1
OUT
V
S
D95IN208D
RSC
1
2
3
4
5
6
7
9
10
11
8
OUTPUT
SUPPLY VOLTAGE
OUTPUT
RSC
ON-DELAY
GND
OUTPUT STATUS
INPUT -
INPUT +
DIAGNOSTIC 2
DIAGNOSTIC 1
D95IN209A
GND
OUTPUT
OUTPUT
N.C.SUPPLY VOLTAGE
N.C.
SUPPLY VOLTAGE
OUTPUT
OUTPUT N.C.
RSC
DIAGNOSTIC 1
ON-DELAY
DIAGNOSTIC 2
INPUT +
INPUT -
OUTPUT STATUS
GND1
3
2
4
5
6
7
8
9
18
17
16
15
14
12
13
11
19
10
20
GND GND
D95IN210B
MULTIWATT11
PowerSO-20
Note: Output pins must be connected externally to the package to use all leads for the output
current (Pin 9 and 11 for Multiwatt package, Pin 2, 3, 8 and 9 for PowerSO20 package).
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

L6370L

Mfr. #:
Buy L6370L
Manufacturer:
STMicroelectronics
Description:
IC IPS MONO 2.5A 11-MULTIWATT
Lifecycle:
New from this manufacturer.
Delivery:
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