View L6377D013TR_4219272.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

L6377
0.5 A high-side driver quad intelligent power switch
Features

Multipower BCD technology 0.5 A output current 8 to 35 V supply voltage range Externally programmable current limit Non-dissipative over-current protection Thermal shutdown Under voltage lockout with hysteresys Diagnostic output for under voltage, over temperature and over current External asynchronous reset input Presettable delay for overcurrent diagnostic Open ground protection Protection against surge transient (IEC 61000-4-5) Immunity against burst transient (IEC 61000-4-4) Block diagram
VS
SO-14
Description
This device is a monolithic intelligent power switch in multipower BCD technology for driving inductive, capacitive or resistive loads. Diagnostic for CPU feedback and extensive use of electrical protections make this device inherently indistructible and suitable for general purpose industrial applications. Table 1. Device summary
Package SO-14 SO-14 Packaging Tube Tape and reel
Order codes L6377D L6377D013TR
Figure 1.
CHARGE PUMP
VS RS
GND
IN+
+
1.3V
CURRENT LIMIT DRIVER
OVC
OUT UV
R 1.3V
+ -
SHORT CIRCUIT CONTROL
RSC
DIAG
OVT
UV
DELAY
ON DELAY C DON
D94IN075D
March 2008
Rev 4
1/16
www.st.com 16
Contents
L6377
Contents
1 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 1.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 3 4 5 6 7 8 9 10
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Input section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Over temperature protection (OVT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Under voltage protection (UV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Over current operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Demagnetisation of inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2/16
L6377
Maximum rating
1
1.1
Maximum rating
Absolute maximum ratings
Table 2.
Symbol Vs Vs - Vout Vod Iod IRESET VRESET Iout Vout
Eil
Absolute maximum ratings
Pin 4 Parameter Supply voltage (tw 10 ms) Supply voltage (DC) 4 vs 3 Supply to output differential voltage Externally forced voltage 10 Externally forced current Reset input current (forced) 5 Reset input voltage Output current (see also Isc) 3 Output voltage Total energy inductive load (TJ = 125 C) Power dissipation External voltage 11 Externally forced current Input current 12 Input voltage Ambient temperature, operating range Junction temperature, operating range (see overtemperature protection) Storage temperature -10 to Vs +0.3 -25 to 85 -25 to 125 -55 to 150 V C C C -10 to 10 20 mA mA -0.3 to 40 internally limited internally limited 50 internally limited -0.3 to 40 V mJ V Value 50 40 internally limited -0.3 to 7 1 2 V mA mA Unit V V
Ptot Vdiag Idiag Ii Vi Top TJ Tstg
1.2
Thermal data
Table 3.
Symbol RthJA
Thermal data
Parameter Thermal resistance, junction to ambient (max) Value 150 Unit C/W
3/16
Pin connections
L6377
2
Pin connections
Figure 2. Pin connections (top view)
N.C. GND OUT VS RSC N.C. N.C.
1 2 3 4 5 6 7
D96IN368
14 13 12 11 10 9 8
N.C. RESET IN+ DIAG ON DELAY N.C. N.C.
Table 4.
N# 1, 6, 7, 8, 9, 14 2 3 4 5 10 11 12 13
Pin description
Pin name N.C. GND OUT
VS
Function Not connected Ground pin High side output. Controlled output with current limitation Supply voltage. Range with under voltage monitoring Current limiting setting
Rsc
ON DELAY Delay setting for overcurrent diagnostic DIAG IN+ RESET Diagnostic open drain output for over temperature, under voltage and overcurrent Comparator non inverting input Asynchronous reset input
4/16
L6377
Electrical characteristics
3
Electrical characteristics
Table 5. Electrical characteristcs (Vs = 24 V; TJ = -25 to 125 C; unless otherwise specified.)
Parameter Test condition Min Typ Max Unit
Symbol Pin DC operation Vsmin Vs Vsth Vshys Iq Iqo Vith Viths Vil Vih 12 4
Supply voltage for valid diagnostic Operative supply voltage Under voltage lower threshold Under voltage hysteresis Quiescent current Quiescent current Input threshold voltage Input threshold hysteresis Input low level voltage Input high level voltage
Idiag 0.5 mA; Vdiag = 1.5 V;
4 8 7 300 500 800 1.6 0.8 50 -7 1.3 24
35 35 8 700
V V V mV A mA
Output open Output on
2 400 0.8 Vs-3 15 250
V mV V V V A V V V A A V
Vs < 18 V Vs > 18 V
2 2 -250 0.8 0 2 5 1.3
Iib Vrth Vrl Vrh Irb Idch Vrsc Irsc Idlkg Vdiag 11 10 13
Input bias current Reset threshold voltage Reset low level voltage Reset high level voltage Reset pull down current Delay capacitor charging current Output voltage on Rsc pin Output current on Rsc pin Diagnostic output leakage current Diagnostic output voltage drop
Vi = -7 to 15 V
2 0.8 40
ON delay pin shorted to Ground Rsc pin floating Rsc pin shorted to GND Diagnostic off Idiag = 5 mA;
2.5 1.25 300 25 1.5
5
A A V
5/16
Electrical characteristics Table 5. Electrical characteristcs (continued) (Vs = 24 V; TJ = -25 to 125 C; unless otherwise specified.)
Parameter Output voltage drop Test condition Iout = 625 mA; TJ = 25 C Iout = 625 mA; TJ = 125 C Iolk Vol Vcl 3 Output leakage current Output low state voltage Vi = LOW; Vout = 0 Vi = HIGH; pin floating 48 0.8 53 5/Rsc = K 0.75 1.1 150 20 1.5 Min Typ 250 400 Max 350 550 100 1.5 58
L6377
Symbol Pin Vdon
Unit mV mV A V V A A C C
Internal voltage clamp (Vs- Io = 200 mA Vout) single pulsed =300ms Vs = 8 to 35 V; Rl = 2 ; Rsc = 5 to 30 K Vs = 8 to 35 V; Rl = 2 ; Rsc < 5 K
Isc
Short circuit output current
Tmax Thys AC operation tr-tf
td
Over temperature upper threshold Over temperature hysteresis
3
Rise or fall time Delay time Slew rate (rise and fall edge)
Vs = 24 V; Rl = 70 Rl to ground Vs = 24 V; Rl = 70 Rl to ground 50 pF < CDON< 2 nF
20 5 0.7 1 1.28 64 25 1.5
s s V/s s/pF tON kHz
dV/dt tON tOFF fmax 10
On time during short circuit condition Off time during short circuit condition Maximum operating frequency
Source drain NDMOS diode Vfsd Ifp trr tfr Forward on voltage Forward peak current Reverse recovery time Forward recovery time Ifsd = 625 mA tp = 10 ms; duty cycle = 20 % Ifsd = 500 mA; dIfsd/dt = 25 A/s 200 50 1 1.5 1.5 V A ns ns
6/16
L6377 Figure 3. Undervoltage comparator hysteresis
Electrical characteristics
Vshys
Vsth
D94IN126A
Vs
Figure 4.
Switching waveforms
Vin
50%
50%
td Vout 90%
50%
td
t
90%
50%
10% tr tf
10%
D94IN127A
t
7/16
Input section
L6377
4
Input section
An Input and Asynchronous RESET, both TTL/CMOS compatible with wide voltage range and high noise immunity (thanks to a built in hysteresis) are available.
5
Over temperature protection (OVT)
An on-chip Over Temperature Protection provides an excellent protection of the device in extreme conditions. Whenever the temperature - measured on a central portion of the chipexceeds Tmax =150 C (typical value) the device is shut off, and the DIAG output goes LOW. Normal operation is resumed as the chip temperature (normally after few seconds) falls below Tmax-Thys = 130 C (typical value). The hysteresis avoid thats an intermittent behaviour take place.
6
Under voltage protection (UV)
The supply voltage is expected to range from 8 to 35 V. In this range the device operates correctly. Below 8V the overall system has to be considered not reliable. To avoid any misfunctioning the supply voltage is continuously monitored to provide an under voltage protection. As Vs falls below Vsth-Vshys (typically 7.5 V, see fig. 4) the output power MOS is switched off and DIAG output goes LOW. Normal operation is resumed as soon as Vs exceeds Vsth. The hysteretic behaviour prevents intermittent operation at low supply voltage.
8/16
L6377
Over current operation
7
Over current operation
In order to implement a short circuit protection the output power MOS is driven in linear mode to limit the output current to the Isc value. This Isc limit is externally settable by means of an external 1/4 W resistor connected from Rsc pin and GND. The value of the resistor must be chosen according to the following formula: Isc (A) = 5/Rsc (k) with 5 < Rsc < 30 (k) For Rsc < 5 (k) Isc is limited to 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 s/pF for 50 pF < CDON < 2 nF After the ton interval has expired the output power MOS is switched off for the tOFF time interval with: tOFF = 64*tON. Figure 5.
OUTPUT CURRENT Isc Iout
Short circuit operation waveforms
ttON
tOFF
tON
tOFF
Time
Short Circuit
D94IN105
Time
9/16
Over current operation When also the tOFF interval has expired, the output power MOS is switched ON. Now two conditions may occur

L6377
the overload is still present. In this case the output power MOS is again driven in linear mode (limiting the output current to Isc) for another tON, starting a new cycle, or the overload condition is removed, and the output power MOS is no longer driven in linear mode.
All these occurrences are presented on the DIAG pin (see fig 5). We call this unique feature non dissipative short circuit protection and it ensures a very safe operation even in permanent overload conditions. Note that, of course, choosing the most appropriate value for the tON interval (i.e. the value of the CDON capacitor) a delay (the tON itself) will prevent that a misleading Short Circuit information is presented on the DIAG output, when driving capacitive loads (that acts like short circuit in the very beginning) or 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 the ON DELAY pin.
10/16
L6377
Demagnetisation of inductive loads
8
Demagnetisation of inductive loads
The L6377 has an internal clamping zener diode able to demagnetise inductive loads. Note that the limitation comes from the peak power that the package can handle. Attention must be paid to a proper thermal design of the board. If, for whatever reason (load current or inductive value too big) the peak power dissipation is too high, an external Zener plus Diode arrangement, can perform a demagnetisation versus Ground or versus Vs (see fig 5 and 6). The breakdown voltage of the external Zener Diode must be chosen considering the internal clamping voltage (Vcl) and the supply voltage (Vs) according to: Vz < Vcl(min)-Vs(max) for demagnetisation versus ground or Vs(max)Vout 100mV 100mV
Vs
Vi-
D94IN079
Vi+
Figure 7.
External demagnetisation circuit (versus ground)
VS RS CURRENT LIMIT DRIVER OUT UV SHORT CIRCUIT CONTROL
OVC
VZ
VZ < Vcl (min) - VS (max)
D94IN112
11/16
Demagnetisation of inductive loads Figure 8. External demagnetisation circuit (versus )
VS RS CURRENT LIMIT DRIVER OUT UV SHORT CIRCUIT CONTROL
OVC
L6377
VS VZ
VS (max) < VZ < Vcl (min)
D94IN111A
12/16
L6377
Package mechanical data
9
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
13/16
Package mechanical data
L6377
Table 6.
Dim.
SO-14 mechanical data
mm Min Typ Max 1.75 0.1 0.25 1.6 0.35 0.19 0.5 45 (typ.) 8.55 5.8 1.27 7.62 3.8 4.6 0.4 4 5.3 1.27 0.68 8 (max.) 0.150 0.181 0.016 8.75 6.2 0.336 0.228 0.050 0.300 0.157 0.209 0.050 0.027 0.344 0.244 0.46 0.25 0.014 0.007 0.020 0.004 Min inch Typ Max 0.069 0.009 0.063 0.018 0.010
A a1 a2 b b1 C c1 D (1) E e e3 F (1) G L M S
Figure 9.
Package dimensions
14/16
L6377
Revision history
10
Revision history
Table 7.
Date August 2001 25-Feb-2008
Document revision history
Revision 3 4 First Issue in EDOCS dms Modified: Removed obsolete package DIP-14 Changes
15/16
L6377
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
(c) 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
16/16

▲Up To Search▲

Price & Availability of L6377D013TR

	To Download L6377D013TR Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .