Owner's manual

MAX17007A/MAX17008
Dual and Combinable QPWM Graphics
Core Controllers for Notebook Computers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 12V, V
DD
= V
CC
= V
EN1
= V
EN2
= 5V, V
REFIN1
= 2V, SKIP = GND, T
A
= 0 to +85°C, unless otherwise noted. Typical values are
at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CURRENT LIMIT
CSH1, CSH2 0 2.3
Current-Sense Input Range
CSL1, CSL2 0 2.3
V
Current-Sense Input (CSH_)
Leakage Current
CSH_ = GND or V
CC
, T
A
= +25°C -0.2 +0.2 μA
Current-Sense Input (CSL_)
Leakage Current
CSL_= CSL_ = 2V, T
A
= +25°C 1 μA
T
A
= +25°C 28 30 32
V
CSH_
- V
CSL_
ILIM1 = ILIM2 = REF
T
A
= 0°C to +85°C 27 30 33
V
CSH_
- V
CSL_
, ILIM1 = ILIM2 = V
CC
56 60 64
V
CSH_
- V
CSL_
, ILIM1 = ILIM2 = OPEN 42 45 48
Current-Limit Threshold (Fixed) V
CSLIMIT
V
CSH_
- V
CSL_,
ILIM1 = ILIM2 = GND 13 15 17
mV
Current-Limit Threshold
(Negative)
V
NEG
V
CSH_
- V
CSL_
, SKIP = V
CC
-1.2 x
V
CSLIMIT
mV
Current-Limit Threshold
(Zero Crossing)
V
ZX
V
CSH_
- V
CSL_
, SKIP = GND or OPEN;
ILIM1 = ILIM2 = REF
1 mV
Ultrasonic Frequency
SKI P = open (3.3V); V
CSL1
= V
REFIN1
+ 50mV;
V
CSL2
= V
FB2
+ 50mV
20 kHz
V
CSL1
= V
REF1
+ 50mV 22 33 46
Ultrasonic Current-Limit
Threshold
SKI P = open (3.3V)
V
CSL2
= V
FB2
+ 50mV 18 30 46
mV
Current-Balance Amplifier (GMI)
Offset
[V(CSH1,CSL1) - V(CSH2,CSL2)] at I
CCI
= 0 -3 +3 mV
Current-Balance Amplifier (GMI)
Transconductance
I
CCI
/[V(CSH1,CSL1) - V(CSH2,CSL2)];
V
CCI
= V
CSL1
= V
CSL2
= 0.5V to 2V, and
V(CSH_,CSL_) = -60.0mV to +60.0mV,
ILIM1 = GND
180 μS
GATE DRIVERS
Low state (pulldown) 1.7 4.0
DH1, DH2 Gate-Driver
On-Resistance
R
ON(DH)
BST_ - LX_ forced
to 5V
High state (pullup) 1.7 4.0

High state (pullup) 1.3 3.0
DL1, DL2 Gate-Driver
On-Resistance
R
ON(DL)
Low state (pulldown) 0.6 2.5

DH1, DH2 Gate-Driver
Source/Sink Current
I
DH
DH_ forced to 2.5V, BST_ - LX_ forced to
5V
1.2 A
DL1, DL2 Gate-Driver
Source Current
I
DL(SOURCE)
DL_ forced to 2.5V 1 A
DL1, DL2 Gate-Driver
Sink Current
I
DL(SINK)
DL_ forced to 2.5V 2.4 A
DH_ low to DL high 10 25 40
Driver Propagation Delay
DL_ low to DH high 15 30 45
ns