CS3865C Datasheet, PDF (3/8 Pages) Cherry Semiconductor Corporation – High Performance Dual Channel Current Mode Controller with ENABLE

Electrical Characteristics: V_CC = 15V, R_T = 8.2kΩ, C_T = 3.3nF, for typical values T_A=25˚C, for min/max values T_A is the operating
ambient temperature range that applies [Note 3].
PARAMETER
s Current Sense Section
Current Sense Input
Voltage Gain
Maximum Current Sense
Input Threshold
Input Bias Current
Propagation Delay
TEST CONDITIONS
(Notes 4 and 5)
(Note 4)
MIN
2.75
430
Current Sense Input to Output (Note 6)
TYP
3.00
480
-2.0
150
MAX
3.25
530
-10.0
300
UNIT
V/V
mV
µA
ns
s Output 2 Enable Pin
Enable Pin Voltage
High State
Low State
Low State Input Current
Output 2 enabled
Output 2 disabled
V_IL= 0V
s Drive Outputs
Output Voltage
Low State
High State
Output Voltage with
UVLO Activated
Output Voltage Rise Time
Output Voltage Fall Time
I_SINK=20mA
I_SINK=200mA
I_SOURCE=20mA
I_SOURCE=200mA
V_CC=6.0V, I_SINK=1.0mA
C_L=1.0nF (Note 6)
C_L=1.0nF (Note 6)
s Undervoltage Lockout Section
Start-Up Threshold
CS3865C
Minimum Operating Voltage
After Turn-On
Hysteresis
3.5
0.0
100
250
V_REF
V
1.5
V
400
µA
0.1
1.6
13.0
13.5
12.0
13.4
0.1
28
25
13
14
9.0
10.0
4
0.4
V
2.5
V
V
V
1.1
V
150
ns
150
ns
15
V
11.0
V
V
s Total Device
Start-Up Current
Operating Current
Power Supply Zener Voltage
V_CC=12V
(Note 7)
I_CC=30mA
0.6
20
15.5
17.0
1.0
mA
25
mA
19.0
V
Note 1: Maximum package power dissipation limits must be observed.
Note 3: Adjust V_CC above the Start-Up threshold before setting to 15V.
Note 4: This parameter is measured at latch trip point with V_FB=0V.
Note 5: Comparator gain is defined as:
∆V Compensation
AV = _{∆V Current Sense}
Note 6: These parameters are guaranteed by design but not 100% tested
in production.
Note 7: Low duty cycle pulse techniques are used during test to main-
tain junction temperature as close to ambient as possible: T_low=0°C ;
T_high=+70°C
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