L6598_04 STMICROELECTRONICS [STMicroelectronics], L6598_04 Datasheet

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L6598_04

Manufacturer Part Number
L6598_04
Description
HIGH VOLTAGE RESONANT CONTROLLER
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1
2
The device is manufactured with the BCD OFF LINE
Figure 2. Block Diagram
June 2004
HIGH VOLTAGE RAIL UP TO 600V
dV/dt IMMUNITY 50V/ns IN FULL
TEMPERATURE RANGE
DRIVER CURRENT CAPABILITY:
250mA SOURCE
450mA SINK
SWITCHING TIMES 80/40ns RISE/FALL WITH
1nF LOAD
CMOS SHUT DOWN INPUT
UNDER VOLTAGE LOCK OUT
SOFT START FREQUENCY SHIFTING
TIMING
SENSE OP AMP FOR CLOSED LOOP
CONTROL OR PROTECTION FEATURES
HIGH ACCURACY CURRENT CONTROLLED
OSCILLATOR
INTEGRATED BOOTSTRAP DIODE
CLAMPING ON Vs
SO16, DIP16 PACKAGES
Rfstart
Rfmin
FEATURES
DESCRIPTION
Cf
OPOUT
OPIN+
OPIN-
5
6
7
4
2
3
Ifstart
Ifmin
OP AMP
VCO
+
-
V
V
REF
REF
HIGH VOLTAGE RESONANT CONTROLLER
CONTROL
LOGIC
V
12
S
DETECTION
DEAD
TIME
UV
Iss
1
Css
technology, able to ensure voltage ratings up to
600V, making it perfectly suited for AC/DC Adapters
and wherever a Resonant Topology can be benefi-
cial. The device is intended to drive two Power MOS,
in the classical Half Bridge Topology. A dedicated
Timing Section allows the designer to set Soft Start
Time, Soft Start and Minimum Frequency. An Error
Amplifier, together with the two Enable inputs, are
made available. In addition, the integrated Bootstrap
Diode and the Zener Clamping on low voltage sup-
ply, reduces to a minimum the external parts needed
in the applications.
Figure 1. Packages
Table 1. Order Codes
BOOTSTRAP
DRIVER
DRIVING
LOGIC
L6598D013TR
Part Number
L6598D
L6598
LVG DRIVER
DIP-16
SHIFTER
DRIVER
LEVEL
HVG
+
+
-
-
Vthe1
Vthe2
D98IN887A
Vs
16
15
14
11
10
8
9
V
HVG
OUT
LVG
GND
EN1
EN2
SO-16N
BOOT
Tape & Reel
Package
SO-16N
DIP-16
H.V.
L6598
C
BOOT
LOAD
1/17

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L6598_04 Summary of contents

Page 1

FEATURES HIGH VOLTAGE RAIL UP TO 600V dV/dt IMMUNITY 50V/ns IN FULL TEMPERATURE RANGE DRIVER CURRENT CAPABILITY: 250mA SOURCE 450mA SINK SWITCHING TIMES 80/40ns RISE/FALL WITH 1nF LOAD CMOS SHUT DOWN INPUT UNDER VOLTAGE LOCK OUT SOFT START FREQUENCY ...

Page 2

L6598 Figure 3. Pin Connection Table 2. Thermal Data Symbol R Thermal Resistance Junction to Ambient th j-amb Table 3. Pin Function N. Name 1 C Soft Start Timing Capacitor Soft Start Frequency Setting - Low Impedance ...

Page 3

Table 4. Absolute Maximum Ratings Symbol I Supply Current Low Side Output LVG V High Side Reference OUT V High Side Output HVG V Floating Supply Voltage BOOT dV VBOOT pin Slew Rate (repetitive) BOOT/dt dV ...

Page 4

L6598 Table 6. Electrical Characteristcs (V = 12V 12V BOOT OUT Symbol Pin Parameter SUPPLY VOLTAGE Turn On Threshold suvp Turn Off Threshold suvn S V Supply Voltage ...

Page 5

Table 6. Electrical Characteristcs (continued 12V 12V BOOT OUT Symbol Pin Parameter GBW Sense Op Amp Gain Band Width Product (*) G DC Open Loop Gain dc COMPARATORS V 8 Enabling Comparator ...

Page 6

L6598 Figure 6. Oscillator/Output Timing Diagram C f HVG LVG 3 BLOCK’S DIAGRAM DESCRIPTION 3.1 High/Low Side driving section An High and Low Side driving Section provide the proper driving to the external Power MOS or IGBT. An high sink/source ...

Page 7

During the soft start time the current transconductance amplifier, as shown in fig. 7. Thus this voltage signal is converted in a growing current which is subtracted Therefore the current which drives the oscillator ...

Page 8

L6598 Figure 8. Oscillator Block Vth Vth- 8/17 Iosc ...

Page 9

Figure 9. Typ. fmin vs. Rfmin @ Cf = 470pF f min (KHz) 100 Figure 10. Typ. (fstart-fmin) vs. Rfstar @ Cf = 470pF f (KHz) 80 Rfmin=33K ...

Page 10

L6598 3.3 Bootstrap Section The supply of the high voltage section is obtained by means of a bootstrap circuitry. This solution normally re- quires an high voltage fast recovery diode for charging the bootstrap capacitor (fig. 14a). In the device ...

Page 11

OP AMP Section The integrated OP AMP is designed to offer Low Output Impedance, wide band, High input Impedance and wide Common Mode Range. It can be readily used to implement protection features or a closed loop control. For ...

Page 12

L6598 Figure 17. Typ. fmin vs. Temperature f min (KHz - Figure 18. Typ. fstart vs. Temperature f fstart (KHz) 130 120 110 100 - Figure 19. Vs thresholds and clamp vs ...

Page 13

Figure 23. LVG Source and Sink Current vs. Temperature Ilvg (mA) 500 400 300 200 100 - Figure 25. Wide Range AC/DC Adapter Application 85 to 270 Vac L6561/2 L6598 VCO & CONTROL ENABLE Figure 24. Soft Start ...

Page 14

L6598 Figure 26. DIP-16 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. a1 0.51 B 0.77 1.65 b 0 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.3 Z 1.27 14/17 ...

Page 15

Figure 27. SO-16N Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 1.75 a1 0.1 0.25 a2 1.6 b 0.35 0.46 b1 0.19 0. (1) 9 5.8 6.2 e 1.27 e3 ...

Page 16

L6598 Figure 28. Revision History Date Revision June 2004 16/17 5 Changed the impagination following the new release of “Corporate Technical Pubblication Design Guide”. Done a few of corrections in the text. Description of Changes ...

Page 17

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. ...

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