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CS1612A Fiches technique(PDF) 5 Page - Cirrus Logic

No de pièce CS1612A
Description  TRIAC Dimmable LED Driver IC
Download  18 Pages
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Fabricant  CIRRUS [Cirrus Logic]
Site Internet  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS1612A Fiches technique(HTML) 5 Page - Cirrus Logic

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CS1610A/11A
CS1612A/13A
DS976PP4
5
Notes:
1. The CS1610A/11A/12A/13A has an internal shunt regulator that limits the voltage on the VDD pin. VZ, the shunt regulation
voltage, is defined in the VDD Supply Voltage section on page 4.
2.
For test purposes, load capacitance CL is connected to pin GD and is equal to 0.25nF.
3. External circuitry should be designed to ensure that the ZCD current drawn from the internal clamp diode when it is forward biased
does not exceed specification.
4. Switching period (T1
T2) 5 s. Period T1 and T2 are defined in the Control Parameters section on page 12.
5. The conductance is specified in Siemens (S or 1/
). Each LSB of the internal ADC corresponds to 250nS or one parallel 4M
resistor. Full scale corresponds to 256 parallel 4M
 resistors or 15.625k.
6.
Specifications are guaranteed by design and are characterized and correlated using statistical process methods.
Second Stage Zero-current Detect
FBZCD Threshold
VFBZCD(th)
-200
-
mV
FBZCD Blanking
CS1610A/12A
CS1611A/13A
tFBZCB
-
-
2
2.8
-
-
s
s
ZCD Sink Current
(Note 3)
IZCD
-2
-
-
mA
FBAUX Upper Voltage
IZCD =1mA
-VDD+0.6
-
V
Second Stage Pulse Width Modulator
Minimum On Time
-
0.55
-
s
Maximum On Time
CS1610A/11A/13A
CS1612A
-
-
8.8
12.0
-
-
s
s
Minimum Switching Frequency
tFB(Min)
-625
-
Hz
Maximum Switching Frequency
(Note 4)
tFB(Max)
-200
-
kHz
Second Stage Gate Driver
Output Source Resistance
ZOUT
-20.3
-
Output Sink Resistance
ZOUT
-9.4
-
Rise Time
CL =0.25nF
--
30
ns
Fall Time
CL =0.25nF
--
20
ns
Second Stage Protection
Overcurrent Protection (OCP)
VOCP(th)
-1.69
-
V
Overvoltage Protection (OVP)
VOVP(th)
-1.25
-
V
Open Loop Protection (OLP)
VOLP(th)
-200
-
mV
External Overtemperature Protection (eOTP), Boost Peak Current, Second Stage Frequency Gain
Pull-up Current Source – Maximum
ICONNECT
-80
-
A
Conductance Accuracy
(Note 5)
--
±5
Conductance Offset
(Note 5)
-±250
-
nS
Current Source Voltage Threshold
VCONNECT(th)
-1.25
-
V
Internal Overtemperature Protection (iOTP)
Thermal Shutdown Threshold
(Note 6)
TSD
-143
-
ºC
Thermal Shutdown Hysteresis
(Note 6)
TSD(Hy)
-12
-
ºC
Parameter
Condition
Symbol
Min
Typ
Max
Unit


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