SGP100

Features: ` Constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry` Green-mode function: PWM frequency linearly decreasing` Fixed PWM frequency at 42kHz with frequency hopping to solve EMI problems ` Low start-up current: 10A (typical)` Low operating curr...

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SGP100 Picture
SeekIC No. : 004489489 Detail

SGP100: Features: ` Constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry` Green-mode function: PWM frequency linearly decreasing` Fixed PWM frequency at 42kHz with...

floor Price/Ceiling Price

Part Number:
SGP100
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/11

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Product Details

Description



Features:

` Constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry
` Green-mode function: PWM frequency linearly decreasing
` Fixed PWM frequency at 42kHz with frequency hopping to solve EMI problems
` Low start-up current: 10A (typical)
` Low operating current: 6.5mA (typical)
` Peak-current-mode control in CV mode
` Cycle-by-cycle current limiting
` VDD over-voltage protection with latch (OVP)
` VDD under-voltage lockout (UVLO)
` Gate output maximum voltage clamped at 18V
` Fixed over-temperature protection with latch



Application

·  Battery chargers for cellular phones, cordless phones,PDA, digital cameras, and power tools
·  Replacement for linear transformer and RCC SMPS



Pinout

  Connection Diagram




Specifications

Symbol Parameter
Value
Unit
VDD DC Supply Voltage*
30
V
VL Input Voltage to CS, COMV, COMI, VS Pins
-0.3 to 7.0
V
PD Power Dissipation
400
mW
RJC Thermal Resistance (Junction-to-Case)
68.3
/W
TJ Operating Junction Temperature
-40 to +125
TSTG Storage Temperature Range
-55 to +150
TL Lead Temperature (Wave Soldering or Infrared, 10 Seconds)
260
ESD Electrostatic Discharge Capability, Human Body Model
4.5
kV
Electrostatic Discharge Capability, Machine Model
200
V
*All voltage values, except differential voltages, are given with respect to the GND pin.
*Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.



Description

This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. The patented topology of SGP100 enables simplified circuit design for battery charger applications. The result of SGP100 is a low-cost, smaller and lighter charger than a conventional design or a linear transformer.

To minimize the standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. This green-mode function of SGP100 allows the power supply to meet power conservation requirements. The start-up current is only 10A, which allows large start-up resistance for further power saving.

A charger of SGP100  can be implemented with few external components and minimal cost. A typical output CV/CC characteristic envelope is shown in Figure 1.




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