CS5106 Cherry Semiconductor Corporation, CS5106 Datasheet - Page 6

• Manufacturer Part Number: CS5106
• Description: Multi-Feature/ Synchronous plus Auxiliary PWM Controller
• Manufacturer: Cherry Semiconductor Corporation

Electrical Characteristics: T
wise specified. For All Specs: UVSD=6V, OVSD = 0V, ENABLE = 0V, I
PACKAGE LEAD #
GATE 2, 2B Non-Overlap Delay
GATE2 Turn-on Delay
from GATE2B
GATE2B Turn-on Delay
from GATE2
GATE 1, 2, 2B Rise & Fall Times V
GATE1 Rise Time
GATE1 Fall Time
GATE2 Rise Time
GATE2 Fall Time
GATE2B Rise Time
GATE2B Fall Time
PARAMETER
2
3
4
5
6
7
8
1
OUVDELAY
LEAD SYMBOL
OAOUT
RAMP1
UVSD
OVSD
OAM
V
I
LIM1
5REF
J
= -40¡C to 125¡C, V
Measure delay from GATE2B going low
@1.7V to GATE2 going high @1.7V.
Measure delay from GATE2 going low
@1.7V to GATE2B going high @1.7V.
Measure GATE1 Rise Time from
90% to 10%. C
Measure GATE1 Fall Time from
10% to 90%. C
Measure GATE2 Rise Time from
90% to10%. C
Measure GATE2 Fall Time from
10% to 90%. C
Measure GATE2B Rise Time from
90% to10%. C
Measure GATE2B Fall Time from
10% to 90%. C
SS
=12V,V
TEST CONDITIONS
resistor divider to the main high voltage (V
is less than 5V then a fault is initiated such that GATE1, GATE2 and GATE2B
go low.
divider to the main high voltage (V
5V then a fault is initiated such that GATE1, GATE2 and GATE2B go low.
to 4.5V, a fault is initiated such that GATE1, GATE2 and GATE2B go low.
on the auxiliary error amp plus lead and represents the V
by ten.
of either the main or the auxiliary supply are such that either V
greater that 4.1V nominal, then capacitor from OUVDELAY to ground will
begin charging. If the over voltage duration is such that the OUVDELAY
voltage exceeds 5V, then a fault will be initiated such that GATE1, GATE2
and GATE2B will go low.
exceeding 1.2V nominal on I
exceeding 1.4V nominal on I
clock cycles.
with respect to current in the primary side of the auxiliary trans former is
usually represented on this lead. A voltage exceeding V
will cause GATE1 to go low.
Overvoltage shutdown lead. Typically this lead is connected through a resistor
Undervoltage shutdown lead. Typically this lead is connected through a
5V reference output lead. Capable of 20mA nominal output. If this lead falls
Auxiliary error amplifier minus input. This lead is compared to 1.2V nominal
Auxiliary error amplifier output lead. Source current 300µA max.
Output undervoltage timing capacitor lead. If the controlled output voltages
Pulse by pulse over current protection lead for the auxiliary PWM. A voltage
Current Ramp Input Lead for the Auxiliary PWM. A voltage which is linear
SS
Package Lead Description
CC
= 9 to 16V, V
=V
LOAD
LOAD
LOAD
LOAD =
LOAD
LOAD
SS
-V
= 150pF.
= 150pF.
= 50pF.
= 50pF.
= 50pF.
50pF.
DON
6
5REF
I
LOAD
LIM(1,2)
LIM1
LIM1
FUNCTION
= 2mA, SYNC
will cause GATE1 to go low. A voltage
will cause GATE1 to go low for at least two
IN
= 0,V
) line. If the voltage on this lead exceeds
MIN
20.0
20.0
FB(1,2)
IN
OUT
) line. If the voltage on this lead
= 3V,R
Free Running, unless other-
45.0
45.0
50.0
30.0
50.0
15.0
50.0
15.0
TYP
FADJ
FB1
SS
= R
- 0.13 on RAMP1
voltage divided
MAX
DLYSET
70.0
70.0
80.0
60.0
80.0
30.0
80.0
30.0
FB1
or V
= 27.4k½.
UNIT
FB2
ns
ns
ns
ns
ns
ns
ns
ns
is