Current Controller. CYT101 Datasheet

CYT101 Controller. Datasheet pdf. Equivalent


CYT CYT101
www.DataSheet4U.com
Voltage and Current Controller
CYT101
FEATURES
„ Two ored error amplifiers with built-in current
generator with enable/disable function.
„ 1.24V series voltage reference with trimmed 1%
tolerance (CYT101A).
„ 4.5 to 32V supply voltage range.
„ 5kV ESD protection.
„ Temperature-compensated.
DESCRIPTION
The CYT101/CYT101A provide a pin-for-pin
replacement of TSM101/A. This is an 8-pin voltage
& current controller incorporates a trimmed series
bandgap voltage reference, two ored error amplifiers
and a current source.
This IC provides a feedback to the primary side of a
power supply by comparing the DC voltage and the
current level at the output to an internal reference.
The controlled current generator can be used to
modify the level of current limitation by offsetting the
information coming from the current sensing
resistor.
The CYT101/A can be used in every types of
application requiring a precision voltage regulation
and current limitation. For example, designers can
save space by using this 8-pin IC for a CC/CV mode
battery charger.
D
DIP8
(8-Pin Plastic DIP)
M
SO8
(8-Pin Plastic SOIC)
ORDER INFORMATION
ORDER CODE
CYT101AM/D
CYT101M/D
Temperature Bandgap
Range
Tolerance
0, +125
1%
2.5%
PIN CONFIGURATION
Vref 1
8 +Vcc
APPLICATIONS
This circuit is designed to be used in battery
chargers with a constant voltage and a limited
output current.
It can be used in every types of application requiring
a precision voltage regulation and current limitation.
Other application include voltage supervisors, over
voltage protection…
EN 2
Iref 3
GND 4
7 Vfb
+-
6 OUTPUT
- + 5 Ifb
PIN DESCRIPTION
Pin Name
1 VREF
2 EN
3 IREF
4 GND
5 IFB
6 OUTPUT
7 VFB
8 VCC
I/O Function
O Trimmed Voltage Reference Output 1.24V, 10mA max.
I Current source enable input. This current source can be used to
Offset the voltage measurement on the sense resistor and therefore to modify
the charge current. The current source is enabled when the
Input voltage on pin 2 is lower than 0.8V
I Current Limitation Reference Input
I Ground
I Current Limitation Loop Input, connected to the sense resistor
O
Output pin common to the voltage regulation and current limitation
Loops.
I
Inverting input of the voltage error amp, The non-inverting input is from VREF,
1.24V
I Power Supply Input
Preliminary and all contents are subject to change without prior notice.
1


CYT101 Datasheet
Recommendation CYT101 Datasheet
Part CYT101
Description Voltage and Current Controller
Feature CYT101; www.DataSheet4U.com Voltage and Current Controller FEATURES „ „ „ „ „ Two ored error amplifiers wit.
Manufacture CYT
Datasheet
Download CYT101 Datasheet




CYT CYT101
Voltage and Current Controller
CYT101
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC Supply Voltage
IOUT Output Current
VIN Input Voltage
IIN Input Current
PD Power Dissipation
TJ Maximum Junction Temperature
RTHJ-A
Thermal Resistance Junction to Ambient
TSTG
Storage Temperature
Value
36
20
-0.3, VCC -1.5
±1
200
150
130 to 200
0 to +125
Unit
V
mA
V
mA
mW
/W
RECOMMENDED CONDITIONS
Symbol
Parameter
VCC Supply Voltage
TOP Operating Free-air Temperature Range
Value
4.5 to 32
0 to 125
Unit
V
ELECTRICAL CHARACTERISTICS
The conditions are: TA =25, VCC = 15V unless otherwise stated
Condition Over TOP apply over full temperature range (0 to 125)
Symbol
Parameter
ERROR AMPLIFIER
ICC Total Supply Current
VIN Input Voltage Range
Test Conditions
Min.
VCC = 15V
0
VIO Input Offset Voltage
IIB Input Bias Current
@VIN = 1.2V on pin 7 and VIN = 0V on pin 5
ISINK Output Sink Current, VOL = 2.5V
AVO
PSRR
CMRR
GBP
Large Signal Voltage Gain
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Gain Bandwidth Product
IOH Output Leakage Current
VOLTAGE REFERENCE
VREF
Reference Voltage CYT101A
CYT101
TCVR Temperature Stability
VLR Load Regulation
VSR Line Regulation
TA =25
Over TOP
TA =25
Over TOP
25
Over TOP
RL =2ΚΩ, Over TOP
Over TOP
Over TOP
VCC = 15V, F = 100kHz
VI = 10mV, RL = 2κΩ
CL = 100pF
25
Over TOP
IOUT = 1mA
Over TOP
1 mA< IOUT < 10mA
5V < VIN < 32V
-5
-7
-700
-1000
8
15
65
1.227
1.21
Preliminary and all contents are subject to change without prior notice.
Typ.
1
-300
15
90
80
1
1.24
1.24
30
5
3.5
Max. Unit
2
VCC
-1.5V
5
7
0
0
mA
V
mV
nA
mA
V/mV
dB
dB
MHz
2 µA
7
1.252
1.27
100
15
10
V
ppm/
mV
mV
2



CYT CYT101
Voltage and Current Controller
CYT101
ELECTRICAL CHARACTERISTICS (cont’d)
The conditions are: TA =25, VCC = 15V unless otherwise stated
Condition Over TOP apply over full temperature range (0to 125)
Symbol
Parameter
CURRENT GENERATOR
IO Current Source
TCCG Temperature Stability
ISR Line Regulation
VEN Voltage at EN pin to have IO = 1.4mA
VIDIS Voltage at the EN pin to have IO = 0mA
IEN
ILEAK
Input Current on the EN pin
Leakage Current
PACKAGE MECHANICAL SO8
Test Conditions
Over TOP
4.5 < VCC < 32V
Over TOP
Over TOP
Over TOP
VEN =2V
Over TOP
Min.
Typ. Max. Unit
1.4 mA
500 ppm/
0.003 0.03 mA
0.6 V
2V
30 µA
0.5 2 µA
18
27
D
36
45
E
H
C
B
B1
A1
A
DIMENSIONS
DIMN
INCHES
MIN MAX
MM
MIN MAX
A 0.0532 0.0688 1.35 1.75
A1 0.0040 0.0098 0.10 0.25
B 0.0130 0.0200 0.33 0.51
B1 0.050 BSC
1.27 BSC
C 0.0075 0.0098 0.19 0.25
D 0.1890 0.1968 4.80 5.00
H 0.2284 0.2440 5.80 6.20
E 0.1497 0.1574 3.80 4.00
PACKAGE MECHANICAL DIP8
1
2
D
3
4
8
7
6
5
F
e1
b1
E
Z
e
B
a
A
IL
b
DIMN
A
a
B
b
b1
D
E
e
e1
F
I
L
Z
DIMENSIONS
INCHE
MM
MIN MAX MIN MAX
0.131
3.32
0.020
0.51
0.045 0.065 1.15 1.65
0.014 0.022 0.356 0.55
0.008 0.012 0.204 0.304
0.430
10.92
0.313 0.384 7.95 9.75
0.100
2.54
0.300
7.62
0.260
6.60
0.200
5.08
0.125 0.150 3.18 3.81
0.060
1.52
Preliminary and all contents are subject to change without prior notice.
3





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