ncp1082 ON Semiconductor, ncp1082 Datasheet - Page 9

• Manufacturer Part Number: ncp1082
• Description: Integrated Poe-pd & Dc-dc Converter Controller With 9v Auxiliary Supply Support
• Manufacturer: ON Semiconductor

10. Power dissipation must be considered. Load on VDDH and VDDL must be limited especially if VDDH is not powered by an auxiliary winding.
11. Ivddl_load = current flowing out of the VDDL pin.
Table 3. Operating Conditions
VDDH REGULATOR
VDDL REGULATOR
GATE DRIVER
PWM COMPARATOR
ERROR AMPLIFIER
SOFT−START
CURRENT LIMIT COMPARATOR
VDDH_reg
VDDH_Off
VDDH_lim
VDDH_Por_R
VDDH_Por_F
VDDH_ovlo
VDDL_reg
VDDL_Por_R
VDDL_Por_F
Gate_Tr
Gate_Tf
VCOMP
Vbg_fb
Av_ol
GBW
Vss
Vss_r
Iss
CSth
Tblank
Ivddh_load = current flowing out of the VDDH pin + current delivered to the Gate Driver (function of the frequency, VDDH voltage & MOSFET
gate capacitance).
Symbol
Regulator output voltage
(Notes 10 and 11)
Regulator turn−off voltage
VDDH regulator current limit
(Notes 10 and 11)
VDDH POR level (rising)
VDDH POR level (falling)
VDDH over−voltage level (rising)
Regulator output voltage
(Notes 10 and 11)
VDDL POR level (rising)
VDDL POR level (falling)
GATE rise time (10−90%)
GATE fall time (90−10%)
COMP control voltage range
Reference voltage
DC open loop gain
Error amplifier GBW
Soft−start voltage range
Soft−start low threshold
(rising edge)
Soft−start source current
CS threshold voltage
Blanking time
Parameter
VDDL
– 0.2
Min.
3.05
1.15
0.35
http://onsemi.com
324
8.4
7.3
2.5
1.3
13
16
−
6
−
−
−
1
−
3
−
VDDH_reg
9
+ 0.5 V
Typ.
1.15
0.45
360
100
3.3
1.2
80
9
−
−
−
−
−
−
−
−
−
−
5
– 0.02
VDDL
Max.
18.5
3.55
1.25
0.55
396
9.6
8.3
2.9
26
50
50
−
7
3
−
−
−
7
−
Units
MHz
mA
mV
dB
nS
mA
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
Ivddh_load + Ivddl_load < 10 mA
with Ivddl_load < 2.25 mA and
12.5 V < VPORTP − ARTN < 57 V
For information only
Ivddl_load < 2.25 mA with
Ivddh_load + Ivddl_load < 10 mA
and 12.5 V < VPORTP −
ARTN < 57 V
Cload = 2 nF, VDDHreg = 9 V
Cload = 2 nF, VDDHreg = 9 V
For information only
Voltage with respect to ARTN
For information only
For information only
For information only
Conditions