SM74202 Datasheet, PDF (3/12 Pages) Texas Instruments – 100V Current Mode PWM Controller

SM74202
www.ti.com
SNOSBA4A – NOVEMBER 2011 – REVISED APRIL 2013
Absolute Maximum Ratings ⁽¹⁾⁽²⁾
VIN to GND
VCC to GND
All other pins to GND
Power Dissipation
ESD Rating ⁽³⁾
Human Body Model
Storage Temperature
Junction Temperature
-0.3V to 100V
-0.3V to 16V
-0.3V to 7V
Internally Limited
2kV
-65°C to +150°C
150°C
(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) The human body model is a 100 pF capacitor discharged through a 1.5kΩ resistor.
Operating Ratings
VIN Voltage
External Voltage applied to VCC
Operating Junction Temperature
13V to 90V
8V to 15V
-40°C to +125°C
Electrical Characteristics
Specifications in standard type face are for T_J= +25°C and those in boldface type apply over the full operating junction
temperature range. Unless otherwise specified: VIN = 48V, VCC = 10V, and RT = 31.6kΩ. ⁽¹⁾
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Startup Regulator
V_CCReg
V_CC Regulation
V_CC Current Limit
V_CC = Open
(2)
7.4
7.7
15
22
8.0
V
mA
I-V_IN
Startup Regulator Leakage
V_IN = 100V
150
500
µA
I_IN
Shutdown Current
V_UVLO = 0V, V_CC = open
250
350
µA
VCC Supply
V_CC UVLO (Rising)
VccReg VccReg -
V
- 300mV
100mV
V_CC UVLO (Falling)
I_CC
Supply Current
Error Amplifier
Cload = 0
5.3
6.0
2
6.7
V
3
mA
GBW
Gain Bandwidth
4
MHz
DC Gain
75
dB
Reference Voltage
FB = COMP
1.225
1.25
1.275
V
COMP Sink Capability
FB = 1.5V COMP= 1V
5
17
mA
UVLO Pin
Shutdown Threshold
1.25
V
Undervoltage Shutdown Hysteresis
Current Source
16
20
24
µA
Current Limit
ILIM Delay to Output
CS step from 0 to 0.6V
30
ns
Time to onset of OUT
Transition (90%)
Cycle by Cycle CS Threshold
Voltage
0.5
V
Leading Edge Blanking Time
50
ns
(1) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods. The limits are used to calculate TI's Average Outgoing Quality Level (AOQL).
(2) Device thermal limitations may limit usable range.
Copyright © 2011–2013, Texas Instruments Incorporated
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