tea1738t NXP Semiconductors, tea1738t Datasheet - Page 11

• Manufacturer Part Number: tea1738t
• Description: Tea1738t; Tea1738lt Greenchip Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Limiting values
TEA1738T_TEA1738LT
Product data sheet
7.14 Driver (pin DRIVER)
7.15 OverTemperature Protection (OTP)
The driver circuit to the gate of the power MOSFET has a current sourcing capability of
typically 300 mA and a current sink capability of typically 750 mA. This allows for a fast
turn-on and turn-off of the power MOSFET for efficient operation.
Integrated temperature protection ensures the IC stops switching if the junction
temperature exceeds the thermal shutdown temperature limit.
OTP is a latched protection. It can be reset by removing the voltage on pin VCC.
Table 3.
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Voltages
V
V
V
V
V
V
Currents
I
I
I
I
I
I
General
P
T
T
CC
I(VINSENSE)
I(PROTECT)
CTRL
ISENSE
DRIVER
stg
j
CC
VINSENSE
PROTECT
CTRL
IO(OPTIMER)
ISENSE
tot
Limiting values
Parameter
supply voltage
voltage on pin VINSENSE
voltage on pin PROTECT
voltage on pin CTRL
input/output voltage on pin
OPTIMER
voltage on pin ISENSE
supply current
input current on pin
VINSENSE
input current on pin
PROTECT
current on pin CTRL
current on pin ISENSE
current on pin DRIVER
total power dissipation
storage temperature
junction temperature
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 14 January 2011
Conditions
continuous
t < 100 ms
current limited
current limited
current limited
δ < 10 %
δ < 10 %
T
TEA1738T; TEA1738LT
amb
< 75 °C
GreenChip SMPS control IC
Min
−0.4
-
−0.4
−0.4
−0.4
−0.4
−0.4
-
−1
−1
−3
−10
−0.4
-
−55
−40
© NXP B.V. 2011. All rights reserved.
Max
+30
35
+5.5
+5
+5.5
+5
+5
0.4
+1
+1
0
+1
+1
0.5
+150
+150
Unit
V
V
V
V
V
V
V
A
mA
mA
mA
mA
A
W
°C
°C
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