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EST6105 Datasheet

PWM POWER SUPPLY SUPERVISOR

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EST.6105
PWM POWER SUPPLY SUPERVISOR WITH REGULATOR
Description
The EST6105 is designed with a pulse-width-modulation
control circuit, 2 sets of TL431 and a complete power
supervisor for use in the switched mode power supply. It
contains various functions, like under voltage protection
(UVP), over voltage protection (OVP), power good output
(PG) and ON/OFF control (REM).
UVP (Under voltage protection) function is for +3.3V, +5V,
+12V voltages.
OVP (Over voltage protection) function is for +3.3V, +5V,
+12V voltages.
OPP (Over power protection), NVP (Negative voltage
protection) are over power and negative voltages.
UVAC (Under voltage AC protection) is for the main AC
under voltage check or fail detection.
PG (Power good signal) is a safe operation signal to inform
the external parts.
REM (Remote on/off) is used to control the SMPS on/off.
The REM control signal has the on/off transferred debounce
time.
2 sets of TL431 shunt regulators are for stable reference
voltage outputs. Push-pull PWM output and soft start function
are supported.
Pin Configuration (Top View)
Features
„ 3-channel under voltage protection (UVP)
„ 3-channel over voltage protection (OVP)
„ 1-channel over voltage protection (OPP)
„ 1-channel negative voltage protection (NVP)
„ 1-channel under voltage AC protection (UVAC)
„ Remote on/off control function with debounce time (REM)
„ Dual output for push-pull operation (OP1/OP2)
„ Soft start capability by external capacitor (SS)
„ 2 sets of internal TL431 shunt regulators
Ordering Information
Order Number
EST6105D20
Package
PDIP-20 (RoHS)
Packing
Tube
Top Marking
EST6105D
www.esthome.com
1 datasheet Rev A1.0




EST

EST6105 Datasheet Preview

EST6105 Datasheet

PWM POWER SUPPLY SUPERVISOR

No Preview Available !

EST.6105
PWM POWER SUPPLY SUPERVISOR WITH REGULATOR
Pin Description
Pin Symbol
1 REM
2 V33
3 V5
4 OPP
5 UVAC
6 NVP
7 V12
8 OP2
9 OP1
10 PG
11 FB2
12 REF2
13 REF1
14 FB1
15 GND
16 COMP
17 IN
Type
Input
Input
Input
Input
Input
Input
Input
Output
Output
Output
Output
Input
Input
Output
Power
Output
Input
18 SS
Input
19 RT
20 VDD
Input
Power
Function
Remote ON/OFF control input
OVP, UVP sense input for +3.3V
OVP, UVP sense input for +5V
Over power protection sense input
AC Under voltage or fail detection sense input
Negative voltage detection sense input
OVP, UVP sense input for +12V
Push-pull PWM output-2 and are enabled low
Push-pull PWM output-1 and are enabled low
Power good output (open-drain). PG=1 means the power is good to work.
Cathode2 of 2nd TL431-2
Reference2 of 2nd TL431-2
Reference1 of 1st TL431-2
Cathode1 of 1st TL431
Ground
Error amplifier output
Error amplifier (-) input
Error amplifier (+) input clamped at 2.5V and the Soft start function is setting through
external capacitor
Oscillation frequency is setting through external resistor
Supply voltage
Block Diagram
www.esthome.com
2 datasheet Rev A1.0


Part Number EST6105
Description PWM POWER SUPPLY SUPERVISOR
Maker EST
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EST6105 Datasheet PDF






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2 EST6105D20 PWM POWER SUPPLY SUPERVISOR
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