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LCS701HG Datasheet Preview

LCS701HG Datasheet

(LCS700 - LCS708) Integrated LLC Controller

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www.DataSheet.co.kr
LCS700-708
HiperLCSFamily
Integrated LLC Controller, High-Voltage
Power MOSFETs and Drivers
Product Highlights
Features
LLC half-bridge power stage incorporating controller, high and
low-side gate drives, and high-voltage power MOSFETs
Eliminates up to 30 external components
High maximum operating frequency of 1 MHz
Nominal steady-state operation up to 500 kHz
Dramatically reduces magnetics size and allows use of
SMD ceramic output capacitors
Precise duty symmetry balances output rectifier current,
improving efficiency
50% ±0.3% typical at 300 kHz
Comprehensive fault handling and current limiting
Programmable brown-in/out thresholds and hysteresis
Undervoltage (UV) and overvoltage (OV) protection
Programmable over-current protection (OCP)
Short-circuit protection (SCP)
Over-temperature protection (OTP)
Programmable dead-time for optimized design
Programmable burst mode maintains regulation at no-load and
improves light load efficiency
Programmable soft-start time and delay before soft-start
Accurate programmable minimum and maximum frequency
limits
Single package designed for high-power and high-frequency
Reduces assembly cost and reduces PCB layout loop areas
Simple single clip attachment to heat sink
Exposed thermal pad connected to ground potential – no
insulators required between package and heat sink
Staggered pin arrangement for simple PC board routing
and high-voltage creepage requirements
Paired with HiperPFS PFC product gives complete, high
efficiency, low part count PSU solutions
Applications
High-efficiency power supplies (80 PLUS Silver, Gold and
Platinum)
LCD TV power supplies
LED street and area lighting
Printer power supplies
Audio amplifier
Description
The HiperLCS is an integrated LLC power stage incorporating a
multi-function controller, high-side and low-side gate drivers,
plus two power MOSFETs in a half-bridge configuration. Figure
1 shows a simplified schematic of a HiperLCS based power stage
where the LLC resonant inductor is integrated into the transformer.
The variable frequency controller provides high efficiency by
switching the power MOSFETs at zero voltage (ZVS), eliminating
switching losses. 
B+
VCCH
D
Standby
Supply
VCC
CONTROL
HB
+V
HV DC
Input
B-
OV/UV
VREF
RFMAX
DT/BF
RBURST
FB
G
IS
HiperLCS
S1/S2
RTN
LLC Feedback Circuit
PI-6159-060211
Figure 1. Typical Application Circuit – LCD TV and PC Main Power Supply.
Output Power Table
Product
Maximum Practical Power1
LCS700HG
110 W
LCS701HG
170 W
LCS702HG
220 W
LCS703HG
275 W
LCS705HG
350 W
LCS708HG
440 W
Table 1. Output Power Table.
Notes:
1. Maximum practical power is the power the part can deliver when properly
mounted to a heat sink and a maximum heat sink temperature of 90 °C.
www.powerint.com
June 2011
Datasheet pdf - http://www.DataSheet4U.net/




Power Integrations

LCS701HG Datasheet Preview

LCS701HG Datasheet

(LCS700 - LCS708) Integrated LLC Controller

No Preview Available !

www.DataSheet.co.kr
LCS700-708
VREF
OV/UV
+
VSDH/
VSDL
+
VOVH/
VOVL
+
IS VISF
+
VISS
VREF
FEEDBACK (FB)
3.4 V
REGULATOR
VCC
UVLO
LLC_ON
SOFT-START DELAY
131,072 LLC
CLOCK CYCLES
DEBOUNCE
3 LLC CLOCK
CYCLES
DRAIN (D)
UVLO
VCCH
OVER-
TEMPERATURE
PROTECTION
7 CONSECUTIVE
LLC CLOCK
CYCLES
LLC_CLK
LEVEL
SHIFT
HB
DT/BF
LLC
CLOCK
DEAD-TIME
GENERATOR
OUTPUT
CONTROL
LOGIC
DT/BF
RESISTOR
SENSOR
+ DEBOUNCE
3 LLC CLOCK
CYCLES
Bursting
Thresholds
Control
Figure 2. Block Diagram.
GROUND (G)
PI-5755-060111
SOURCE (S1/S2)
2
Rev. B 062011
www.powerint.com
Datasheet pdf - http://www.DataSheet4U.net/


Part Number LCS701HG
Description (LCS700 - LCS708) Integrated LLC Controller
Maker Power Integrations
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LCS701HG Datasheet PDF






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