SP6132 Datasheet, PDF (2/14 Pages) Sipex Corporation – Wide Input, 300KHz Synchronous PWM Controller

These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
VCC .................................................................................................. 7V
BST ............................................................................................... 22V
BST-SWN ......................................................................... -0.3V to 7V
SWN ................................................................................... -1V to 15V
GH ......................................................................... -0.3V to BST+0.3V
GH-SWN ......................................................................................... 7V
All other pins .......................................................... -0.3V to VCC+0.3V
ABSOLUTE MAXIMUM RATINGS
Peak Output Current < 10us
GH,GL ............................................................................................. 2A
Storage Temperature .................................................. -65°C to 150°C
Power Dissipation .......................................................................... 1W
Lead Temperature (Soldering, 10 sec) ...................................... 300°C
ESD Rating .......................................................................... 2kV HBM
Thermal Resistance ............................................................. 41.9°C/W
ELECTRICAL SPECIFICATIONS
Unless otherwise specified: 0°C < T_AMB < 70°C, 4.5V < V_CC < 5.5V, BST=V_CC,SWN = GND = 0V, UVIN = 3.0V, CV_CC = 10µF,
C_COMP = 0.1µF, CGH = CGL = 3.3nF, C_SS = 50nF, Typical measured at V_CC=5V. The ♦ denotes the specifications which
apply over the -40°C to 85°C temperature range, unless otherwise specified.
PARAMETER
QUIESCENT CURRENT
V_CC Supply Current
BST Supply Current
PROTECTION: UVLO
V_CC UVLO Start Threshold
V_CC UVLO Hysteresis
UVIN Start Threshold
UVIN Hysteresis
UVIN Input Current
MIN TYP MAX UNITS
CONDITIONS
1.5
3
mA ♦ V_FB =0.9V (No switching)
0.2
0.4 mA ♦ V_FB =0.9V (No switching)
4.00 4.25
100 200
2.3 2.5
200 300
4.5
V
300 mV
2.65 V
400 mV
1 µA
UVIN =3.0V
ERROR AMPLIFIER REFERENCE
Error Amplifier Reference
0.792 0.800 0.808 V
2X Gain Config., Measure VFB; V_CC =
5V, T=25ºC
Error Amplifier Reference
Over Line and Temperature
0.788 0.800 0.812 V
♦
Error Amplifier Transconductance
6
ms
Error Amplifier Gain
60
dB
No Load
COMP Sink Current
150
µA
V_FB = 0.9V, COMP = 0.9V
COMP Source Current
V_FB Input Bias Current
Internal Pole
150
µA
V_FB = 0.7V, COMP = 2.2V
50
200 nA ♦ V_FB = 0.8V
4
MHz
COMP Clamp
2.5
V
V_FB=0.7V, T_A = 25°C
COMP Clamp Temp. Coefficient
-2
mV/°C
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
Ramp Amplitude
0.92 1.1
1.28
V
♦
RAMP Offset
1.1
V
T_A = 25°C, RAMP COMP
until GH starts switching
RAMP Offset Temp. Coefficient
-2
mV/°C
GH Minimum Pulse Width
90
180 ns
Maximum Controllable Duty Ratio
92
97
% ♦ Maximum Duty Ratio Measured just
before pulse skipping begins
Maximum Duty Ratio
100
%
Valid for 20 Cycles
Internal Oscillator Frequency
240 300
360 kHz ♦
Date: 8/4/04
SP6132 Wide Input, 300KHz Synchronous PWM Controller
2
© Copyright 2004 Sipex Corporation