MAX1519 Datasheet, PDF (2/43 Pages) Maxim Integrated Products – Dual-Phase, Quick-PWM Controllers for Programmable CPU Core Power Supplies

Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V_CC to GND ..............................................................-0.3V to +6V
V_DD to PGND............................................................-0.3V to +6V
SKIP, SUS, D0–D4 to GND.......................................-0.3V to +6V
ILIM, FB, OFS, CCV, CCI, REF, OAIN+,
OAIN- to GND.........................................-0.3V to (V_CC + 0.3V)
CMP, CSP, CMN, CSN, GNDS to GND ......-0.3V to (V_CC + 0.3V)
TON, TIME, VROK, S0–S1, CODE to GND.-0.3V to (V_CC + 0.3V)
SHDN to GND (Note 1)...........................................-0.3V to +18V
DLM, DLS to PGND ....................................-0.3V to (V_DD + 0.3V)
BSTM, BSTS to GND ..............................................-0.3V to +36V
DHM to LXM ...........................................-0.3V to (V_BSTM + 0.3V)
LXM to BSTM............................................................-6V to +0.3V
DHS to LXS..............................................-0.3V to (V_BSTS + 0.3V)
LXS to BSTS .............................................................-6V to +0.3V
GND to PGND .......................................................-0.3V to +0.3V
REF Short-Circuit Duration .........................................Continuous
Continuous Power Dissipation (T_A = +70°C)
40-Pin 6mm ✕ 6mm Thin QFN
(derate 23.2mW/°C above +70°C) ...............................1.860W
Operating Temperature Range .........................-40°C to +100°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables
fault protection and overlapping operation.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V_CC = V_DD = V_SHDN = V_TON = V_SKIP = V_S0 = V_S1 = V_CODE = 5V, V_FB = V_CMP = V_CMN = V_CSP = V_CSN
= 1.3V, OFS = SUS = GNDS = D0–D4 = GND; T_A = 0°C to +85°C, unless otherwise specified. Typical values are at T_A = +25°C.)
PARAMETER
PWM CONTROLLER
Input Voltage Range
DC Output Voltage Accuracy
(Note 2)
SYMBOL
CONDITIONS
Battery voltage, V+
V_CC, V_DD
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes ≥ 1V
DAC codes from
0.60V to 1V
MIN TYP MAX UNITS
4
28
V
4.5
5.5
-10
+10
mV
-15
+15
Line Regulation Error
Input Bias Current
OFS Input Range
I_FB, I_GNDS
I_OFS
V_CC = 4.5V to 5.5V, V+ = 4.5V to 28V
FB, GNDS
OFS
5
mV
-2
+2
µA
-0.1
+0.1
0
2
V
OFS Gain
GNDS Input Range
GNDS Gain
TIME Frequency Accuracy
A_OFS
∆V_OUT/∆V_OFS;
∆V_OFS = V_OFS, V_OFS = 0 to 1V
∆V_OUT/∆V_OFS;
∆V_OFS = V_OFS - V_REF, V_OFS = 1V to 2V
A_GNDS
f_TIME
∆V_OUT/∆V_GNDS
1000kHz nominal, R_TIME = 15kΩ
500kHz nominal, R_TIME = 30kΩ
250kHz nominal, R_TIME = 60kΩ
Shutdown, R_TIME = 30kΩ
-0.129 -0.125 -0.117
V/V
-0.129 -0.125 -0.117
-20
+200 mV
0.97 0.99 1.01
V/V
900 1000 1100
460 500 540
kHz
225 250 275
125
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