NCP5214A
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS (continued) (V
IN
= 12 V, T
A
= −40 to 85_C, V
CCA
= V
CCP
= V
BOOST
− V
SWDDQ
= 5.0 V,
L = 1.8 mH, C
OUT1
= 150 mF x 2, C
OUT2
= 22 mF x 2, RL1 = 5.6 kW, R1 = 4.3 kW, R2 = 3.3 kW, RZ1 = 10 kW, RZ2 = 130 W, CP1 = 100 pF,
CZ1 = 2.2 nF, CZ2 = 4.7 nF, for min/max values unless otherwise noted. Typical values are at T
A
= 25_C.)
Characteristic Symbol Test Conditions Min Typ Max Unit
ERROR AMPLIFIER
DC Gain GAIN (Note 5) − 70 − dB
Unity Gain Bandwidth Ft COMP_GND = 220 nF,
1.0 W in Series (Note 5)
− 2.0 − MHz
Slew Rate SR (Note 5) − 3.0 − V/mS
GATE DRIVERS
TGDDQ Gate Pull−HIGH Resistance R
H_TG
V
BOOST
− V
SWDDQ
= 5.0 V,
V
TGDDQ
− V
SWDDQ
= 4.0 V
− 1.8 4.0 W
TGDDQ Gate Pull−LOW Resistance R
L_TG
V
BOOST
− V
SWDDQ
= 5.0 V,
V
TGDDQ
− V
SWDDQ
= 1.0 V
− 1.8 4.0 W
BGDDQ Gate Pull−HIGH Resistance R
H_BG
V
CCP
= 5.0 V, V
BGDDQ
= 4.0 V − 1.8 4.0 W
BGDDQ Gate Pull−LOW Resistance R
L_BG
V
CCP
= 5.0 V, V
BGDDQ
= 1.0 V − 0.9 3.0 W
V
TT
ACTIVE TERMINATOR
V
TT
with Respect to 1/2V
DDQREF
d
VTT0
1/2VDDQREF – V
TT
,
VDDQREF = 2.5 V,
I
VTT
= 0 to 2.4 A
(Sink Current)
I
VTT
= 0 to –2.4 A
(Source Current)
−30
−
−
−
−
30
mV
1/2VDDQREF – V
TT
,
VDDQREF = 1.8 V,
I
VTT
= 0 to 2.0 A
(Sink Current)
I
VTT
= 0 to –2.0 A
(Source Current)
−30
−
−
−
−
30
mV
DDQREF Input Resistance DDQREF_R VDDQREF = 2.5 V 40 55 75 kW
Source Current Limit I
LIMVTsrc
− 2.5 3.0 − A
Sink Current Limit I
LIMVTsnk
− 2.5 3.0 − A
Soft−Start Source Current Limit I
LIMVTSS
− − 1.0 − A
Maximum Soft−Start Time t
ssvttmax
− − 0.32 − ms
V
TTREF
OUTPUT
V
TTREF
Source Current I
VTTR
VDDQREF = 1.8 V or 2.5 V 15 − − mA
V
TTREF
Accuracy Referred to 1/2V
DDQREF
d
VTTR
1/2VDDQREF – V
TTR
,
VDDQREF = 2.5 V,
I
VTTR
= 0 mA to 15 mA
−25 − 25 mV
1/2VDDQREF – V
TTR
,
VDDQREF = 1.8 V,
I
VTTR
= 0 mA to 15 mA
−18 − 18 mV
5. Guaranteed by design, not tested in production.
