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L6375SSTN/a5200avai0.5A Industrial Intelligent Power Switch
L6375STRSTN/a5200avai0.5A Industrial Intelligent Power Switch


L6375S ,0.5A Industrial Intelligent Power SwitchFeatures■ 0.5 A output current■ 8 V to 35 V supply voltage range■ Internal current limiting■ Therma ..
L6375STR ,0.5A Industrial Intelligent Power SwitchBlock diagram and pin description L6375SFigure 2. Pin connection (top view)SO-81.1 Pin descriptionT ..
L6376 ,0.5A HIGH-SIDE DRIVER QUAD INTELLIGENT POWER SWITCHABSOLUTE MAXIMUM RATINGS (Pin numering referred to PowerSO20 package)Symbol Pin Parameter Value Uni ..
L6376 ,0.5A HIGH-SIDE DRIVER QUAD INTELLIGENT POWER SWITCHL63760.5A HIGH-SIDE DRIVERQUAD INTELLIGENT POWER SWITCH0.5 A FOUR INDEPENDENT OUTPUTSMULTIPOWER BCD ..
L6376D013TR ,0.5A HIGH-SIDE DRIVER QUAD INTELLIGENT POWER SWITCHABSOLUTE MAXIMUM RATINGS (Pin numering referred to PowerSO20 package)Symbol Pin Parameter Value Uni ..
L6376PD ,0.5A HIGH-SIDE DRIVER QUAD INTELLIGENT POWER SWITCHBLOCK DIAGRAM220nF 22nFV V V VS CP C PCHARGE PUMP VSGNDVSVCP RSCURRENTOVCLIMITI +1- DRIVERO1UVSHORT ..
LC35256AM-10LV ,256 K (32768 words x 8 bit) SRAM with OE and CE pinsLC35256AM, AT-10LV/12LV/1 5LVSOP28 TBtlPtt8E == " ttt 3:: A "A14 28 V00 Aunzz es 20 a=aiik-A12 2 Ri ..
LC35256AT-15LV ,256 K (32768 words X 8 bits) SRAM with OE and CE control PinsFeatures. Power supply voltage range: 2.0 to 3.6 V3 V operation: 2.7 to 3.6 VBattery operation: 2.0 ..
LC35256D-10 ,Dual Control Pins: OE and CE 256K (32768-word X 8-bit) SRAMOrdering number : EN5823CMOS IC LC35256D-10, LC35256DM, DT-70/10Dual Control Pins: OE and CE256K ( ..
LC35256DM ,Dual Control Pins: OE and CE 256K (32768-word X 8-bit) SRAMElectrical Characteristics at Ta = –40 to +85°C, V = 4.5 to 5.5 VCCRatingsParameter Symbol Conditio ..
LC35256DM-10 ,Dual control pins: OE and CE 256K (32768word x 8bit) SRAMFeatures3187-SOP28D• Supply voltage range: 2.7 to 5.5 V[LC35256DM]— 5-V operation: 5.0 V±10%— 3-V o ..
LC35256DM-70 ,Dual control pins: OE and CE 256K (32768word x 8bit) SRAMOrdering number : EN5823CMOS IC LC35256D-10, LC35256DM, DT-70/10Dual Control Pins: OE and CE256K ( ..


L6375S-L6375STR
0.5A Industrial Intelligent Power Switch

December 2011 Doc ID 12603 Rev 8 1/17
L6375S

0.5 A high-side driver intelligent power switch
Features
0.5 A output current 8 V to 35 V supply voltage range Internal current limiting Thermal shutdown Open ground protection Internal negative voltage clamping 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 Immunity against burst transient
(IEC 61000-4-4) ESD protection (human body model ±2 kV)
Description

The L6375S is a monolithic intelligent power
switch in BCDmultipower technology, for driving
inductive or resistive loads with controlled output
voltage slew rate and short-circuit protection.
An internal clamping diode enables the fast
demagnetization of inductive loads. Diagnostics
for CPU feedback and extensive use of electrical
protection make this device extremely rugged and
specially suitable for industrial automation
applications.
Table 1. Device summary

Contents L6375S

2/17 Doc ID 12603 Rev 8
Contents Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Switching waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Input section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6 Overtemperature protection (OVT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.7 Undervoltage protection (UV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Overcurrent operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9 Diagnostic logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 Demagnetization of inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.11 Diagnostic truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
L6375S Block diagram and pin description
Doc ID 12603 Rev 8 3/17
Block diagram and pin description
Figure 1. Block diagram

Block diagram and pin description L6375S

4/17 Doc ID 12603 Rev 8
Figure 2. Pin connection (top view)
1.1 Pin description
Table 2. Pin description
L6375S Electrical specifications
Doc ID 12603 Rev 8 5/17

2 Electrical specifications
2.1 Absolute maximum ratings
2.2 Thermal data
Table 4. Thermal data
Table 3. Absolute maximum ratings
When mounted on a standard single-sided FR-4 board with 0.5 cm2 of Cu (at least 35 μm thick) connected
to all VCC pins. Horizontal mounting and no artificial air flow.

Electrical specifications L6375S

6/17 Doc ID 12603 Rev 8
2.3 Electrical characteristics

VS = 24 V; TJ = –25 to +125 °C, unless otherwise specified.
Table 5. Electrical characteristics
L6375S Electrical specifications
Doc ID 12603 Rev 8 7/17

Table 5. Electrical characteristics (continued)

Electrical specifications L6375S

8/17 Doc ID 12603 Rev 8
2.4 Switching waveform
Figure 3. Switching waveform
2.5 Input section

An single ended input TTL/CMOS compatible with a wide voltage range and high noise
immunity (thanks to a built-in hysteresis) is available.
2.6 Overtemperature protection (OVT)

An on-chip overtemperature protection provides excellent protection of the device in
extreme conditions. Whenever the temperature, measured on a central portion of the chip,
exceeds Tmax = 150 °C (typical value), the device is shut off, and the DIAG2 output goes
LOW. Normal operation is resumed as the chip temperature (normally after a few seconds)
falls below Tmax - Thys = 130 °C (typical value). The hysteresis avoids that an intermittent
behavior takes place.
2.7 Undervoltage protection (UV)

The supply voltage is expected to range from 8 to 35 V. In this range the device operates
correctly. To avoid any malfunctioning the supply voltage is continuously monitored to
provide an undervoltage protection. As VS falls below Vsth-Vshys (typically 7.5 V, see
Figure 1) the output Power MOSFET is switched off and DIAG1 and DIAG2 (see
Section 2.11). Normal operation is resumed as soon as VS exceeds Vsth. The hysteretic
behavior prevents intermittent operation at low supply voltage.
L6375S Electrical specifications
Doc ID 12603 Rev 8 9/17

2.8 Overcurrent operation

In order to implement a short-circuit protection the output Power MOSFET is driven in linear
mode to limit the output current to the Isc (1.1 A typical value). This condition (current limited
to the Isc value) lasts for a Ton time interval, that can be set by means of a capacitor (Cdon)
connected to the ON DELAY pin according to the following formula:
Ton = 1.28 μsec/pF
for
50 pF< Cdon < 2 nF
After the Ton interval has expired the output Power MOSFET is switched off for the Toff time
interval with:
Toff = 64 ·Ton.
When also the Toff interval has expired, the output Power MOSFET is switched ON. At this
point in time two conditions may occur
a) The overload is still present, and then the output Power MOSFET is again driven
in linear mode (limiting the output current to Isc) for another Ton, starting a new
cycle, or
b) the overload condition is removed, and the output Power MOSFET is no longer
driven in linear mode. All these occurrences are presented on the DIAG2 pin
(see Figure 2).
This unique feature is called non-dissipative short-circuit protection and it ensures a very
safe operation even in permanent overload conditions. Note that choosing the most
appropriate value for the Ton interval (i.e. the value of the Cdon capacitor) a delay (the Ton
itself) prevents misleading short-circuit information being presented on the DIAG2 output,
when driving capacitive loads (that acts as a short-circuit in the very beginning) or an
incandescent lamp (a cold filament has a very low resistive value). The non-dissipative
short-circuit protection can be disabled (keeping Ton = 0 but with the output current still
limited to Isc, and diagnostic disabled) simply shorting to ground the ON DELAY pin.
Figure 4. Non-dissipative short-circuit protection operation
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