SP6134H Datasheet, PDF (2/15 Pages) Sipex Corporation – High Voltage, 600 KHz Synchronous PWM Controller

SP6134H
High Voltage, 600kHz Synchronous PWM Step Down
Controller
ABSOLUTE MAXIMUM RATINGS
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.
V_cc .......................................................................... 7V
BST ...................................................................... 33V
BST-SWN ......................................................-0.3 to 7V
SWN ............................................................-1V to 30V
GH................................................... -0.3V to BST+0.3V
GH-SWN.................................................................. 7V
All other pins ..................................... -0.3V to V_CC+0.3V
GH, GL peak output current <10us..............................2A
Storage Temperature ..............................-65°C to 150°C
Power Dissipation.................................Internally Limited
ESD Rating BST Pin (HBM - Human Body Model)...... 1.5kV
ESD Rating All Other Pins (HBM) ............................... 2kV
Thermal Resistance θ_JA ....................................41.9°C/W
Operating Voltage Range ................................ 3V to 28V
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of T_J = 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at T_J = 25°C, and are provided for
reference purposes only. Unless otherwise indicated, V_cc = 4.5V to 5.5V, BST= V_cc, SWN=GND=0V, UVIN=3V, CV_cc = 10µF,
C_COMP=0.1uF, CGH=CGL=3.3nF, C_SS=50nF, T_A= –40°C to 85°C (SP6134HEU) or T_A= –0°C to 70°C (SP6134HCU).
Parameter
V_CC Supply Current
BST Supply Current
V_CC UVLO Start Threshold
V_CC UVLO Hysteresis
UVIN Start Threshold
UVIN Hysteresis
UVIN Input Current
Error Amplifier Reference
Error Amplifier Reference
Over Line and Temperature
Error Amplifier
Transconductance
Error Amplifier Gain
COMP Sink Current
COMP Source Current
VFB Input Bias Current
Internal Pole
COMP Clamp
COMP Clamp Temp. Coefficient
Ramp Amplitude
RAMP Offset
RAMP Offset Temp. Coefficient
GH Minimum Pulse Width
Maximum Controllable Duty
Ratio
Maximum Duty Ratio
Internal Oscillator Frequency
SS Charge Current:
Min.
4.00
100
2.30
260
0.792
0.788
0.92
92
100
510
Typ.
1.5
0.2
4.25
200
2.50
300
0.800
0.800
6
60
150
150
50
4
2.5
-2
1.10
1.1
-2
90
97
600
10
Max.
3
0.4
4.50
300
2.65
390
1
0.808
0.812
200
1.28
180
690
Units
mA
mA
V
mV
V
mV
uA
V
V
mS
dB
uA
uA
nA
MHz
V
mV/°C
V
V
mV/°C
ns
%
%
kHz
uA
Conditions
VFB =0.9V (No switching)
• VFB =0.9V (No switching)
•
•
UVIN=3.0V
2X Gain Config., Measure VFB, V_CC=5V,
T=25°C
•
No Load
VFB=0.9V, COMP=0.9V
VFB=0.7V, COMP=2.2V
• VFB=0.8V
VFB=0.7V, TA = 25°C
•
TA = 25°C, RAMP COMP until GH starts
switching
•
• ^{Maximum Duty Ratio Measured just}
before pulse skipping begins
Valid for 20 Cycles
•
© 2008 Exar Corporation
2/15
Rev. 2.0.0