XR77128 Datasheet, PDF (2/28 Pages) Exar Corporation – Quad Output Digital PWM/PFM

XR77128
Absolute Maximum Ratings
Stresses beyond the limits listed below may cause perma-
nent damage to the device. Exposure to any Absolute Max-
imum Rating condition for extended periods may affect
device reliability and lifetime.
VCCD, LDO5, LDOOUT, GLx, VOUTx........................-0.3V to 7.0V
ENABLE, V5EXT.........................................................-0.3V to 7.0V
GPIO0/1, SCL, SDA.................................................................6.0V
PSIO Inputs, BFB......................................................................18V
DVDD, AVDD...........................................................................2.0V
VCC..........................................................................................28V
LX#.................................................................................-1V to 28V
BSTx, GHx........................................................................VLx + 6V
Storage Temperature.............................................-65°C to +150°C
Power Dissipation................................................Internally Limited
Lead Temperature (Soldering, 10 sec)..................................300°C
ESD Rating (HBM - Human Body Model).................................2kV
Operating Conditions
Input Voltage Range VCC.............................................5.5V to 25V
Input Voltage Range VCC = LDO5.............................4.75V to 5.5V
VOUT1, 2, 3, 4.........................................................................5.5V
Junction Temperature Range................................-40°C to +125°C
JEDEC Thermal Resistance _JA.........................................32°C/W
Electrical Characteristics
Unless otherwise noted: T_J= 25°C, VCC = 5.5V to 25V, V5EXT open. Limits applying over the full operating temperature
range are denoted by a “•”
Symbol
Parameter
Quiescent Current
I_SUPPLY
VCC Supply Current
Conditions
SHUTDOWN
EN = 0V, VCC = 12V
STANDBY
I/Os programmed as inputs, VCC = 12V,
EN = 5V
2ch PFM
2 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, ultra-sonic
off, VCC = 12V, no I²C activity
4ch PFM
4 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, ultra-sonic
off, VCC = 12V, no I²C activity
4ch PWM
All channels enabled, f_sw = 600kHz, gate
drivers unloaded, no I²C activity
Min
Typ
Max
Units
10
20
μA
550
650
μA
3.1
mA
4.0
mA
18
mA
© 2014 Exar Corporation
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exar.com/XR77128
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