ZXLD1370_11 DIODES [Diodes Incorporated], ZXLD1370_11 Datasheet - Page 5

• Manufacturer Part Number: ZXLD1370_11
• Description: 60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER CONTROLLER
• Manufacturer: DIODES [Diodes Incorporated]

ZXLD1370
Document number: DS32165 Rev. 3 - 2
Electrical Characteristics
Notes:
Supply and reference parameters
V
V
I
I
I
I
V
ΔV
V
V
DC-DC converter parameters
V
I
V
I
I
t
T
T
High-Side Current Monitor (Pin ISM)
I
V
V
Q-IN
Q-AUX
SB-IN
SB-AUX
ADJ
GI
PWM
PWMoff
ISM
SDH
SDL
UV-
UV+
REF
REF_LINE
REF-TC
ADJ
GI
SENSE_acc
SENSE-OC
Symbol
REF
‡
‡
†
pins get overdriven
The ADJ and GI pins have an internal clamp that limits the internal node to less than 3V. This provides some failsafe should those
Under-Voltage detection threshold
Normal operation to switch disabled
Under-Voltage detection threshold
Switch disabled to normal operation
Quiescent current into V
Quiescent current into V
Standby current into V
Standby current into V
Internal reference voltage
Change in reference voltage with output
current
Reference voltage line regulation
Reference temperature coefficient
External dc control voltage applied to ADJ
pin to adjust output current
ADJ input current
GI Voltage threshold for boost and buck-
boost modes selection
GI input current
PWM input current
PWM pulse width
(to enter shutdown state)
Thermal shutdown upper threshold
(GATE output forced low)
Thermal shutdown lower threshold
(GATE output re-enabled)
Input Current
Accuracy of nominal V
voltage
Over-current sense threshold voltage
.
Parameter
IN
AUX
SENSE
IN
AUX
.
(Test conditions: V
.
threshold
www.diodes.com
IN
V
V
PWM pin floating.
Output not switching
PWM pin grounded
for more than 15ms
No load
Sourcing 1mA
Sinking 100 µA
V
DC brightness control mode
10% to 200%
V
V
V
V
V
V
PWM input low
Temperature rising.
Temperature falling.
Measured into ISM pin and
V
V
IN
IN
IN
ADJ
ADJ
ADJ
GI
GI
PWM
ISM
ADJ
= V
5 of 35
or V
or V
= V
≤ 2.5V
= 5.0V
AUX
≤ 2.5V
= 5.0V
= 1.25V
= 12V
= 1.25V
= 5.5V
AUX
AUX
AUX
= 12V, T
†
, 6.5V<V
†
falling
rising
Conditions
A
= 25°C, unless otherwise specified.)
IN
= <60V
Diodes Incorporated
A Product Line of
1.237
0.125
Min
300
5.2
5.5
-60
10
-5
±0.25
+/-50
1.25 1.263
1.25
Typ
150
150
125
350
5.6
1.5
0.7
-90
90
36
15
11
6
© Diodes Incorporated
ZXLD1370
February 2011
Max
300
150
100
100
100
375
6.3
6.5
2.5
0.8
10
25
20
±2
3
5
5
5
ppm/°C
Units
mA
mV
mV
µA
µA
µA
dB
nA
µA
nA
µA
µA
ms
µA
ºC
ºC
%
V
V
V
V
V