ISL62882_14 Datasheet, PDF (7/42 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

ISL62882, ISL62882B
Electrical Specifications Operating Conditions: VDD = 5V, T_A = -40°C to +100°C, f_SW = 300kHz, unless otherwise noted.
Boldface limits apply over the operating temperature range, -40°C to +100°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
CHANNEL FREQUENCY
Nominal Channel Frequency
Adjustment Range
f_SW(nom)
Rfset = 7kΩ, 2-channel operation, V_COMP = 1V 285
300
315
kHz
200
500
kHz
AMPLIFIERS
Current-Sense Amplifier Input Offset
Error Amp DC Gain
Error Amp Gain-Bandwidth Product
ISEN
A_v0
GBW
I_FB = 0A
C_L = 20pF
-0.15
+0.15
mV
90
dB
18
MHz
Imbalance Voltage
Maximum of ISENs - Minimum of ISENs
1
mV
Input Bias Current
20
nA
POWER-GOOD AND PROTECTION MONITORS
PGOOD Low Voltage
PGOOD Leakage Current
PGOOD Delay
V_OL
I_PGOOD = 4mA
I_OH
PGOOD = 3.3V
tpgd
CLK_ENABLE# LOW to PGOOD HIGH
0.26
0.4
V
-1
1
μA
6.3
7.6
8.9
ms
GATE DRIVER
UGATE Pull-Up Resistance
UGATE Source Current
UGATE Sink Resistance
UGATE Sink Current
LGATE1a and 1b Pull-Up Resistance
LGATE1a and 1b Source Current
LGATE1a and 1b Sink Resistance
LGATE1a and 1b Sink Current
UGATE1 to LGATE1a and 1b Deadtime
R_UGPU
I_UGSRC
R_UGPD
I_UGSNK
R_LGPU
I_LGSRC
R_LGPD
I_LGSNK
t_UGFLGR
200mA Source Current
UGATE - PHASE = 2.5V
250mA Sink Current
UGATE - PHASE = 2.5V
250mA Source Current
LGATE1a and 1b - VSSP1 = 2.5V
250mA Sink Current
LGATE1a and 1b - VSSP1 = 2.5V
UGATE1 falling to LGATE1a and 1b rising, no
load
1.0
1.5
Ω
2.0
A
1.0
1.5
Ω
2.0
A
2.0
3
Ω
1.0
A
1
1.8
Ω
2.0
A
23
ns
LGATE1a and 1b to UGATE1 Deadtime
LGATE Pull-Up Resistance
LGATE Source Current
LGATE Sink Resistance
LGATE Sink Current
UGATE to LGATE Deadtime
LGATE to UGATE Deadtime
BOOTSTRAP DIODE
t_LGFUGR
R_LGPU
I_LGSRC
R_LGPD
I_LGSNK
t_UGFLGR
t_LGFUGR
LGATE1a and 1b falling to UGATE1 rising, no
load
250mA Source Current
LGATE - VSSP = 2.5V
250mA Sink Current
LGATE - VSSP = 2.5V
UGATE falling to LGATE rising, no load
LGATE falling to UGATE rising, no load
28
ns
1.0
1.5
Ω
2.0
A
0.5
0.9
Ω
4.0
A
23
ns
28
ns
Forward Voltage
Reverse Leakage
PROTECTION
V_F
PVCC = 5V, I_F = 2mA
I_R
V_R = 25V
0.58
V
0.2
µA
Overvoltage Threshold
Severe Overvoltage Threshold
OC Threshold Offset at
Rcomp = Open Circuit
OV_H
OV_HS
VSEN rising above setpoint for >1ms
VSEN rising for >2µs
2-phase configuration, ISUM- pin current
1-phase configuration, ISUM- pin current
150
195
240
mV
1.525 1.55 1.575
V
18.3
20.2
22.1
µA
8.2
10.1
12.0
µA
Current Imbalance Threshold
One ISEN above another ISEN for >1.2ms
9
mV
Undervoltage Threshold
UV_f
VSEN falling below setpoint for >1.2ms
-355
-295
-235
mV
7
FN6890.4
June 21, 2011