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Part: L6598D
Category:
Power Management
-> PWM Power Supply
Description: High Voltage Resonant Controller
Company: ST Microelectronics, Inc.
Datasheet: Download L6598D datasheet File size : 1147 kB
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Datasheet text preview:
L6598
HIGH VOLTAGE RESONANT CONTROLLER
s s s
s s s s s s s s s
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 SEN SE OP AMP FOR CLOSED LOOP CONTROL OR PROTECTION FEATURES HIGH ACCURACY CURRENT CONTROLLED OSCILLATOR INTEGRATED BOOTSTRAP DIODE CLAMPING ON Vs SO16, DIP16 PACKAGES
DIP16
SO16N
ORDERING NUMBERS: L6598 L6598D
DESCRIPTION The L6598 is manufactured with the BCD OFF LINE BLOCK DIAGRAM
VS OP AMP 12 + UV DETECTION
technology, able to ensure voltage ratings up to 600V, making it perfectly suited for AC/DC Adapters and wherever a Resonant Topology can be beneficial. 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 supply, reduces to a minimum the external parts needed in the applications.
H.V. 16 VBOOT
OPOUT OPINOPIN+
5 6 7
BOOTSTRAP DRIVER
HVG DRIVER
15 14
HVG
CBOOT LOAD
OUT Ifmin VREF DEAD TIME 4 Rfmin LVG DRIVER Ifstart VREF + 2 Rfstart CONTROL LOGIC Iss 3 Cf VCO 1 Css
D98IN887A
DRIVING LOGIC
LEVEL SHIFTER
Vs 11 10 GND 8 LVG
Vthe1
+ Vthe2
EN1
9
EN2
February 2002
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L6598
PIN CONNECTION
Css Rfstart Cf Rfmin OPOUT OPINOPIN+ EN1
1 2 3 4 5 6 7 8
D98IN888
16 15 14 13 12 11 10 9
VBOOT HVG OUT N.C. VS LVG GND EN2
THERMAL DATA
Symbol Rth j-amb Parameter Thermal Resistance Junction to Ambient SO16N 120 DIP16 80 Unit °C/W
PIN FUNCTION
N. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Name C SS Rfstar t Cf Rfmin OPout OPonOPon+ EN1 EN2 G ND LVG Vs N.C. OUT HVG Vboot Soft Start Timing Capacitor Soft Start Frequency Setting - Low Impedance Voltage Source - See also Cf Oscillator Frequency Setting - see also Rfmin, Rfstar t Minimum Oscillation Frequency Setting - Low Impedance Voltage Source - See also Cf Sense OP AMP Output - Low Impedance Sense Op Amp Inverting Input - High Impedance Sense Op Amp Non Inverting Input - High Impedance Half Bridge Latched Enable Half Bridge Unlatched Enable Ground Low Side Driver Output Supply Volatge with Internal Zener Clamp Not Connected High Side Driver Reference High Side Driver Output Bootstrapped Supply Voltage Function
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L 6598
ABSOLUTE MAXIMUM RATINGS
Symbol IS VLVG VOUT VHVG VBOOT dVBOOT/dt dVOUT/dt Vir Vic Supply Current at Vcl (*) Low Side Output High Side Reference High Side Output Floating Supply Voltage VBOOT pin Slew Rate (repetitive) OUT pin Slew Rate (repetitive) Forced Input Voltage (pins Rfmin, Rfstart) Forced Input Volatge (pins Css, Cf) Parameter Value 25 14.6 -1 to VBOOT -18 -1 to VBOOT 618 ±50 ±50 -0.3 to 5 -0.3 to 5 -0.3 to 5 ±3 -0.3 to 5 -5 to 5 4.6 -40 to +150 -40 to +150 -40 to +125 Unit mA V V V V V/ns V/ns V V V mA V V V °C °C °C
VEN1, VEN2 Enable Input Voltage IEN1, IEN2 Vopc Vopd Vopo Tstg Tj Tamb Enable Input Current Sense Op Amp Common Mode Range Sense Op Amp Differential Mode Range Sense Op Amp Output Voltage (forced) Storage Temperature Junction Temperature Ambient Temperature
(*) The device is provided of an internal Clamping Zener between GND and the Vs pin, It must not be supplied by a low impedance voltage source. Note : ESD immunity for pins 14, 15 and 16 is guaranteed up to 900 (Human Body Model).
RECOMMENDED OPERATING CONDITIONS
Symbol VS Vout (*) Vboot (*) fmax Supply Voltage High Side Reference Floating Supply Rail Maximum Switching Frequency Parameter Value 10 to Vcl -1 to Vboot-Vcl 500 400 Unit V V V kHz
(*) If the condition Vboot - Vout < 18 is guaranteed, Vout can range from -3 to 580V.
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Others parts begin by l6
L6-1 L6-2 L6-3
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