Datasheet



SLUS486B − AUGUST 2001 − REVISED JULY 2003
3
www.ti.com
ELECTRICAL CHARACTERISTICS
V
DD
= 12-V, 1-µF capacitor from VDD to GND, 1-µF capacitor from VHI to SW, 0.1-µF and 2.2-µF capacitor from PVLO to PGND, PVLO tied to
VLO, T
A
= −40C to 105C for the UCC2722x, T
A
= T
J
(unless otherwise noted)
VLO regulator
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 12 V, I
VLO
= 0 mA 6.2 6.5 6.8
Regulator output voltage
V
DD
= 20 V, I
VLO
= 0 mA 6.2 6.5 6.8
V
Regulator output voltage
V
DD
= 8.5 V, I
VLO
= 100 mA 6.1 6.5 6.9
V
Line Regulation V
DD
= 12 V to 20 V 2 10
mV
Load Regulation I
VLO
= 0 mA to 100 mA 15 40
mV
Short-circuit current
(1)
V
DD
= 8.5 V 220 mA
Dropout voltage, (VDD at 5% VLO drop) VLO = 6.175 V, I
VLO
= 100 mA 7.1 7.8 8.5 V
undervoltage lockout
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Start threshold voltage Measured at VLO 3.30 3.82 4.40
Minimum operating voltage after start 3.15 3.70 4.25
V
Hysteresis 0.07 0.12 0.20
V
bias currents
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
LO
bias current at VLO (ON), 5 V applications only VLO = 4.5 V, VDD = no connect 3.6 4.7 5.8
V
DD
bias current
VDD = 8.5 V 5.5 7.1 8.5
mA
V
DD
bias current
f
IN
= 500 kHz, No load on G1/G2 5.5 10 20
mA
input command (IN)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
High-level input voltage 10 V < VDD < 20 V 3.3 3.6 3.9
V
Low-level input voltage 10 V < VDD < 20 V 2.2 2.5 2.8
V
Input bias current V
DD
= 15 V 1 µA
input (SWS)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
High-level input threshold voltage
f
IN
= 500 kHz, t
ON, G2
maximum,
G2S = 0.0 V
1.4 2.0 2.6
V
Low-level input threshold voltage
f
IN
= 500 kHz, t
ON, G2
minimum,
G2S = 0.0 V
0.7 1.0 1.3
V
Low-level input threshold voltage
f
IN
= 500 kHz, t
ON, G1
minimum −100 −300 −500 mV
Input bias current SWS = 0.0 V −0.9 −1.2 −1.5 mA
input (G2S)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
High-level input voltage
f
IN
= 500 kHz, t
ON, G2
maximum,
SWS = 0.0 V
1.4 2.0 2.6
V
Low-level input voltage
f
IN
= 500 kHz, t
ON, G2
minimum,
SWS = 0.0 V
0.7 1.0 1.3
V
Input bias current G2S = 0 V −370 −470 −570 µA
NOTE 1: Ensured by design. Not production tested.