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(R)
L6380 L6381
HIGH VOLTAGE HIGH-SIDE DRIVER
VH.V. UP TO 600 V SUPPLY VOLTAGE UP TO 17 V DRIVER CURRENT CAPABILITY: SINK CURRENT = 200 mA SOURCE CURRENT = 100 mA UNDER VOLTAGE LOCKOUT WITH HYSTERESIS CMOS/LSTTL COMPATIBLE INVERTING INPUT dV/dt IMMUNITY 50 V/nS IN FULL TEMPERATURE RANGE CURRENT MODE CONTROL REFERENCE INPUT CURRENT/VOLTAGE MODE OPERATION (L6380) VOLTAGE MODE OPERATION (L6381) 8 PINS PACKAGE DESCRIPTION The L6380/L6381 is a high-voltage device with a
MINIDIP ORDERING NUMBERS: L6380 (MINIDIP) L6380D (SO)
SO8
L6381 (MINIDIP) L6381D (SO)
driving stage floating up to 600V. It can be used to drive N-channel power MOSFET and IGBT, in high-side and low-side configurations. The device has a logic input (CMOS and LSTTL compatible) and two comparator inputs compatible to ground.
L6380 BLOCK DIAGRAM
VS VS BOOT H.V.
VS B. G. REG. 10V 1.4V 7V + -
Under Voltage Comparator ON
LEVEL SHIFTER
HVG
LI
OUT
OFF S CI RI 7V + Voltage Mode PULSE GENERATOR GND
D94IN077
LOAD
+ Current Mode
Q
R
January 1999
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L6380 - L6381
To drive the external power device the signal coming from input logic is fed into a pulse generator that in turns drives the level shifting sructure (that include two High Voltage DMOS) designed to ensure low power dissipation and high noise immunity. The output buffer (in Totem Pole arrangement) is able to sink from or source to the gate of the external device the current needed to switch it ON or OFF. The falling edge of the signal coming from the input logic will turn ON while the rising edge will turn OFF the driven power device. This operation will ensure low current sinking from the HV rail during commutations. Current / Voltage Mode Operation To select the Voltage Mode Operation the user have to set on the RI pin a voltage higher than the internal reference (7V). In this way the IC will function as an inverting buffer driven by the LI input pin (see Voltage Mode Timing Diagram). If the voltage on RI input pin is lower than 7V the Current Mode Operation will be enabled. In this configuration the RI input will set the reference voltage to the non inverting input of the Current Mode Comparator (see block diagram), whose inverting input, the CI input pin, in allowable to close a current control loop with a voltage drop coming from a sense resistor. To summarise (see Current Mode Timing Diagrams): The output of the Current Mode Comparator will mask the LI input whenever the CI voltage is higher than the RI input (and the RI voltage is below 7V). Under Voltage Lockout The output buffer if switched off whenever Vs decrease below Vth OFF. The IC will remail in this shut down status until Vs has risen above VthON, the hysteresis will provide a good noise immunity. Applications The L6380/L6381 can be used in motor control applications (AC, DC and switched reluctance), electronic ballasts, heating and welding, switching power supplies and UPS.
L6381 BLOCK DIAGRAM
VS
VS
BOOT
H.V.
VS B. G. REG. 10V 1.4V 7V + -
Under Voltage Comparator ON
LEVEL SHIFTER
HVG
LI
OUT
20K
OFF S CI RI + Current Mode PULSE GENERATOR GND
D94IN078
LOAD
R
Q
7V + Voltage Mode
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ABSOLUTE MAXIMUM RATINGS
Symbol V BOOT VHVG V OUT VBOOT - VOUT VHVG - VOUT VS VIN dV OUT/dt VOUT - VGND Tamb TJ TST Ptot Parameter Supply voltage of bootstrapped section Gate voltage of upper driver Output voltage Difference between boot voltage and output voltage Difference between gate voltage of upper gate and output voltage Supply voltage Input voltage Transient offset supply voltage Difference between output voltage and ground (tp 100 ns) Ambient Temperature Range (operative) Junction temperature Storage temperature Total Power Dissipation (at Tj = 85C) Value 600+VS 600+VS 600 18 18 18 VS-2V 50 -10 -25 to +85 150 -40 to +150 650 Unit V V V V V V V V/ns V C C C mW
Note: ESD immunity for pins 1, 2 and 3 is guaranteed up to 900V (Human Body Model)
THERMAL DATA
Symbol Rth j-amb Parameter Thermal Resistance, Junction Ambient Max. MINIDIP 100 SO8 150 Unit C/W
L6380 PIN CONNECTION (Top view)
OUT HVG BOOT GND 1 2 3 4
D94IN080
8 7 6 5
VS LI RI CI
L6381 PIN CONNECTION (Top view)
OUT HVG BOOT N.C. 1 2 3 4
D94IN081
8 7 6 5
VS LI RI GND
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ELECTRICAL CHARACTERISTICS DC OPERATION (VS = 15V; Tj = 25C; unless otherwise specified.)
Symbol VS VthON VthOFF VShys Iq Iqs V il Vih Vco VthRI Iso 2 Isi IqBOOT IlkgBOOT IlkgHVG IlkgOUT Ibias 2 1 5, 6 7 Sink Current Boot Supply Quiescent Current Boot Leakage Current Gate Driver Leakage Current Output Leakage Current Input Bias Current 6 vs 5 6 7 8 Pin Parameter Supply Voltage (operative) UV Turn-On Theshold UV Turn-Off Theshold UV Hysteresis Quiescent Current Before Start-Up Quiescent Supply Current Logic Input Low Level Logic Input High Level Input Comparator Offset Mode Selection Internal Threshold Voltage Source Current VBOOT-VOUT=12V; VHVG-VOUT=0V; tp10s VBOOT-VOUT=12V; VHVG-VOUT=6V; tp10s VHVG = VBOOT VBOOT=500V VHVG=500V VOUT=500V 6.5 130 7 2 100 7.5 230 VS8V 10 9 0.5 10.5 9.5 0.75 300 2 Test Condition Min. Typ. Max. 17 11 10 1 700 3 0.8 Unit V V V V mA mA V V mV V mA
-320 70
-180
mA A
3
10 10 10 2 30
A A A A A
AC OPERATION (VS = 15V; Tj = 25C; unless otherwise specified.)
Symbol tr tf tON tOFF Parameter Gate Driver Rise Time Gate Driver Fall Time Turn-On Delay Turn-Off Delay C L(HVG, OUT)=1nF; VOUT=0 to 500V Test Condition Min. Typ. 70 50 Max. 100 100 400 400 Unit ns ns ns ns
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L6380 - L6381
Figure 1: AC Operation Test Circuit
BOOT 15V 1nF OUT
D94IN082B
HVG
Figure 2: Switching Waveforms
VLIN
50%
50%
tON VHVG -VOUT 90% 50% 10% tr
tOFF
t
90% 50% 10% tf
D94IN083A
t
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L6380 - L6381
Voltage Mode Timing Diagrams
LI
HVG
D94IN085
Current Mode Timing Diagrams
LI
RI CI
HVG
D94IN084A
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mm MIN. A a1 a2 a3 b b1 C c1 D (1) E e e3 F (1) L M S 3.8 0.4 4.8 5.8 1.27 3.81 4.0 1.27 0.6 8 (max.) 0.15 0.016 0.65 0.35 0.19 0.25 0.1 TYP. MAX. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 0.026 0.014 0.007 0.010 0.004 MIN. inch TYP. MAX. 0.069 0.010 0.065 0.033 0.019 0.010 0.020
DIM.
OUTLINE AND MECHANICAL DATA
45 (typ.) 5.0 6.2 0.189 0.228 0.050 0.150 0.157 0.050 0.024 0.197 0.244
SO8
(1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch).
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com
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