Datasheet
TEA1832LTS All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 1 — 15 December 2014 16 of 23
NXP Semiconductors
TEA1832LTS
GreenChip SMPS control IC
N
cy(dmax)
number of switching
cycles with maximum
duty cycle
7-8
V
start(red)f
frequency reduction
start voltage
pin CTRL dropping to low
power
1.5 1.8 2.1 V
V
start(incr)f
frequency increase
start voltage
pin CTRL 2.6 2.9 3.2 V
V
M(f)max
maximum frequency
peak voltage
pin CTRL 4.2 4.5 4.8 V
V
(zero)
zero duty cycle
voltage
pin CTRL 1.15 1.45 1.75 V
Overpower protection
t
to(opp)
overpower protection
time-out time
140 160 175 ms
Current sense and overpower compensation (pin ISENSE)
V
sense(max)
maximum sense
voltage
V/t = 0 V/s 0.555 0.590 0.625 V
t
PD(sense)
sense propagation
delay
130 155 180 ns
V
th(sense)opp
overpower protection
sense threshold
voltage
370 400 430 mV
V
ISENSE
/t slope compensation
voltage on pin
ISENSE
high-power mode - 18 - mV/s
t
leb
leading edge
blanking time
275 325 375 ns
I
opc(ISENSE)
overpower
compensation
current on pin
ISENSE
I
PROTECT
=10A;
V
ctrl(Ipeak)
> 400 mV
1.5 2 2.5 A
I
PROTECT
=18A;
V
ctrl(Ipeak)
> 400 mV
5.5 6 6.5 A
Soft start (pin ISENSE)
t
start(soft)
soft start time 2.7 3.5 4.2 ms
Driver (pin DRIVER)
I
source(DRIVER)
source current on pin
DRIVER
V
DRIVER
=2V - 0.3 0.25 A
I
sink(DRIVER)
sink current on pin
DRIVER
V
DRIVER
= 2 V 0.25 0.3 - A
V
DRIVER
=10V 0.6 0.75 - A
V
O(DRIVER)max
maximum output
voltage on pin
DRIVER
910.512V
Overvoltage protection (pins VCC and ISENSE)
V
ovp(VCC)
overvoltage
protection voltage on
pin VCC
34.8 36 37.2 V
Table 5. Characteristics …continued
T
amb
=25
C; V
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit